0% found this document useful (0 votes)
205 views78 pages

Survey 11

This document provides a project report on a surveying camp conducted in Dhampus, Pokhara, Nepal from October 15-24, 2022. The camp involved topographic surveying of the area to create a detailed map, as well as proposing a road alignment and selecting a suitable bridge site. The report details the methodology, observations and calculations made during the camp. It acknowledges the support received from instructors, staff, and the local resort committee in hosting the camp. The report is intended to fulfill requirements for a Bachelor's Degree in Civil Engineering from Pokhara University.

Uploaded by

Roshni Shrestha
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
0% found this document useful (0 votes)
205 views78 pages

Survey 11

This document provides a project report on a surveying camp conducted in Dhampus, Pokhara, Nepal from October 15-24, 2022. The camp involved topographic surveying of the area to create a detailed map, as well as proposing a road alignment and selecting a suitable bridge site. The report details the methodology, observations and calculations made during the camp. It acknowledges the support received from instructors, staff, and the local resort committee in hosting the camp. The report is intended to fulfill requirements for a Bachelor's Degree in Civil Engineering from Pokhara University.

Uploaded by

Roshni Shrestha
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
You are on page 1/ 78

A PROJECT REPORT ON SURVEYING 2079

AT DHAMPUS, POKHARA
Submitted as a partial fulfilment of requirements of the Degree of Bachelor of Degree of
Civil Engineering under Pokhara university

Submitted by Symbol Number

Anjila Dhakal 19040937

Gaurav Singh Thapa 19480095


Preksha Sharma 19040977

Roshni Shrestha 19040983


Santosh Yadav 19040996
Soniya Sapkota 19041003

Under the Supervision of


Er. Gyanendra Bhandari
Department of Civil Engineering
21th Oct, 2022
ACKNOWLEDGEMENT
We have prepared a project report on Survey Camp 2079 organized at Dhampus, Pokhara.
We would like to acknowledge with appreciation to Survey Instruction Committee, OCEM
for organizing this survey camp to enhance our knowledge of surveying & it’s application.
The success of this project required a lot of guidance and assistance from many people and
extremely fortunate to have got this all along the completion of our Survey work. Whatever,
we have done is due to guidance of our supervisor “Er. Gyanendra Bhandari sir”.
Firstly, we would like to thank Pokhara University for including the Survey Work as a part
of curriculum to enhance our practical knowledge based on real field of surveying.
We would like to acknowledge our respected teachers “Er. Gyanendra Bhandari”, “Er
Sandip
Dhungana”, “Er. Ashish Poudel”, “Er. Santosh Poudel”, “Er. Ashok Pokharel”, “Er. Ravi
Ghimire”, “Er. Prabesh Bhandari”, “Er. Sandip Parajuli” and all the staffs for their
suggestions, supports, management of resources & co-operation throughout the camp.
Without their guidance, the report would have been incomplete. We would like to thanks
our respective external “Suraj Khatiwada sir” for his presence in the camp and share is
valuable knowledge, advice and help us. We would also like to thanks “Madhav Basnet” lab
staff from OCEM who was helping hand for us.
Last but not the least, acknowledgement would be incomplete without a word of
appreciation for Dhampus Resort Committee who provided us working space & homely
environment. Sincere thanks to those who are directly or indirectly involved in the
preparation of this survey camp & report.
Members
Anjila Dhakal
Gaurav Singh Thapa
Preksha Sharma
Roshni Shrestha
Sontosh Yadav
Soniya Sapkota

ii
ABSTRACT
This report is the outcomes of 10 days’ survey camp 2079 Dhampus Survey Camp
organized by the survey instruction committee, Department of Civil Engineering, OCEM
for the students of 075 – BE Batch as per the syllabus of BE. The camp was held inside the
Kaski district in Dhampus from the date 15 th to 24th of Baishakh 2079 B.S. The report
reflects the methodology, observation, and calculation made by the student in the camp with
the corresponding drawing.
The large portion is of course covered with elements of topographic surveying, and then
those of road alignment and bridge site survey follow it. Surveying the science and art of
determining the relative position of above, on or, beneath the surface of earth, and is the
most important part of civil engineering. The result of survey is used to map the earth,
prepare navigational charts, establish property boundaries, develop data of the land used and
natural resource information etc. further survey maintains highway, railroads, building,
bridge, tunnel, canal, dams and many more. Thus, the objective of survey camp was to make
us gain the experience in this field by performing topographic survey in a large area,
learning to propose road alignment and select suitable site for bridge axis.
The report is prepared with the great efforts and dedication of the students who have
devoted their immense from the very first time of the field work till today. The students are
always learning for the knowledge and promotion. Therefore, we feel that this report
deserves the excuse and tolerance from the readers for any error or blunders present, despite
the best efforts.
Keywords: Surveying, Topographic surveying, Levelling, Fly levelling, Road Survey,
Bridge site survey, Longitudinal section, Cross-section etc.

ii
i
ABBREVATIONS
B.E. Bachelor in Engineering
OCEM Oxford College of Engineering and Management
RL Reduced Level
IP Intersection Point
BM Bench Mark
BC Beginning of curve (Point of Commencement)
EC End of curve (Point of Tangency)
CP Changing point
HFL High Flood Level
TBM Temporary Bench Mark

iv
LIST OF FIGURES
Fig No: Description Page No.
1.3a. Area location from Hemja road to Dhampus Resort 3
3.3a. Two Peg Test 24
4.2a. Simple Circular Curve 37
5.8a. Bridge Site Triangulation 54

v
Table of Contents
A PROJECT REPORT ON SURVEYING 2079 AT DHAMPUS, POKHARA .....................i

ACKNOWLEDGEMENT .......................................................................................................i
i

ABSTRACT ...........................................................................................................................iii

ABBREVATIONS .................................................................................................................iv

LIST OF FIGURES .................................................................................................................

v LIST OF TABLES .................................................................................................................

vi

Table of Contents ...................................................................................................................


vi

CHAPTER
I .............................................................................................................................1

INTRODUCTION ...................................................................................................................1

1.1General............................................................................................................................1

1.2 Objectives of the Survey Camp .....................................................................................


2

1.3 Location and Accessibility ............................................................................................


3

1.4 Camp
Area .....................................................................................................................4

CHAPTER II ...........................................................................................................................
5

TOPOGRAPHIC SURVEYING .............................................................................................


5

2.1 General...........................................................................................................................
5

2.2 Objectives ......................................................................................................................5

2.3 Description of the Area .................................................................................................


5

2.4 Technical Norms............................................................................................................


5

vi
2.5 Instruments Used ...........................................................................................................
6

2.6
Methodology ..................................................................................................................7

2.6.1 Reconnaissance .......................................................................................................... 7

2.6.2 Major Traverse ........................................................................................................... 8

2.6.3 Minor Traverse ........................................................................................................... 9

2.7 Observation and Calculation ......................................................................................... 9

Detailing for topo map..................................................................................................... 12

CHAPTER II .........................................................................................................................23

FLY LEVELLING ................................................................................................................


23

3.1 General.........................................................................................................................
23

3.2 Temporary adjustment of level ....................................................................................


24

3.3 Permanent adjustment of level ....................................................................................


24

3.4 Booking of RL .............................................................................................................


25

3.5 Instrument used ...........................................................................................................


25

3.6 Observations & Calculations .......................................................................................


25

CHAPTER
IV ........................................................................................................................35

ROAD ALIGNMENT SURVEY ..........................................................................................


35

4.1 Geology, Hydrology and Soil ......................................................................................


35

4.2Technical
Specifications ...............................................................................................35

vi
i
4.3 Equipment & Accessories ...........................................................................................
36

4.4
Methodology ................................................................................................................36

4.4.1Reconnaissance ......................................................................................................... 36

4.4.2 Horizontal Alignment .............................................................................................. 36

4.4.3 Longitudinal Section ................................................................................................ 37

4.4.4 Cross-section ............................................................................................................ 37

4.5 Curve Setting ...............................................................................................................


38

4.6 Observation and Calculations ......................................................................................


39

4.7 Comments and Conclusions ........................................................................................


39

CHAPTER V .........................................................................................................................
50

BRIDGE SURVEY ...............................................................................................................


50

5.1 General.........................................................................................................................
50

5.2 Objectives ....................................................................................................................50

5.3 Brief Description of the site.........................................................................................


50

5.4 Technical

Specifications ..............................................................................................50

5.5 Equipment & Accessories ........................................................................................... 51

5.6 Methodology ................................................................................................................ 52

5.6.1. Reconnaissance and site selection .......................................................................


52

5.6.2 Topographic Survey .............................................................................................


52

vi
ii
5.6.3 Longitudinal Section ............................................................................................
53

5.6.4Cross-section .........................................................................................................53

5.6.5 Detailing ...............................................................................................................


53

5.8 Conclusions ................................................................................................................. 54

ix
CHAPTER I
INTRODUCTION
1.1 General
Surveying is the branch of engineering that deals with the art and science of determining the
relative positions of different objects on or beneath the surface of the earth, by
measurements of distances, directions and elevations. The application of surveying requires
the knowledge of mathematics, physics, and to some extent, astronomy. It comes first,
before and during all Engineering works such as designing and construction of highways,
water supply systems, irrigation projects, buildings etc. The B.E. Survey Camp 2022
organized by the Oxford College of Engineering & Management is a part of the four-year
Bachelor's degree in Civil Engineering course, third year second part, carrying a total of 100
marks. The total duration of the survey camp was 10 days, from 15 th Baishakh to 24th
Baishakh. Surveying is the main roots for the execution of any civil engineering projects.
The science of surveying has been developing since the initial stage of human civilization
according to their requirements. The art of surveying preparation of maps has been practiced
from the ancient times and the further advanced until present. In the absence of the map, it is
impossible to layout the alignments of road, canals tunnels, transmission power line, bridge
site, building & so on. Detailed map of the sites of engineering projects are necessary for the
precision establishment of sophisticated instruments. Surveying is the first step for the
execution of any project. As the success of any engineering project is based upon the
accurate and complete survey work, an engineer must therefore be thoroughly familiar with
the principle and different methods of surveying and mapping. For the purpose of water
supply-sanitary system, irrigation system, highway designing, the relative altitudes are
required, which is ascertained by the process of levelling. The details of the enclosed area
and the ground nature can also be portrayed in the combined form of a topographic map.
Not only this, the whole land can be surveyed as different areas and can be plotted into a
single map, the main thing is not to violate the basic survey principles viz. working from
whole to part, consistency in work, accuracy required according to scale and independent
check. As a basic part of these principles, horizontal and vertical contours are fixed prior to
the work of detailing, while surveying large areas. These necessities are also fulfilled while
fixing intersection points for the primary survey on road. For the survey on river, especially
for bridge site, the triangulation method is carried over for horizontal control and fixing
control station for further references. In addition, for vertical control fly levelling is run to

1
form closed circuit. These all are done very precisely by OCEM Batch 2018, Survey Camp
2079/Group 11 accurately to achieve the good result. Hence, the work done during the camp
duration can be categorized into three main projects:

a) Topographical survey / Traverse detailing of major & minor traverse station of land b)

Bridge site survey

c) Road alignment survey

1.2 Objectives of the Survey Camp


The main objective of this survey camp allocated for civil engineering students is to
consolidate and update their basic knowledge of different surveying techniques relevant to
civil engineering working in actual field conditions enhances their theoretical and practical
knowledge and increases their confidence that is beneficial to their professional practice in
the near future. The duration of this survey camp enabled a single group of students to
perform and prepare reports on:

1. Detailed survey of the given area

2. Road alignment Survey

3. Bridge Site Survey

Besides, the main objective mentioned above some other objectives can be listed as:

1. To familiarize individuals with the concept of team work as surveying is not a oneman
game.

2. To familiarize students with the parts, functions and handling of surveying instruments
and their use in surveying.

3. To familiarize students with the problems that are likely to arise during the fieldwork. For
e.g., Weather, ground features etc.

4. To complete the given project in scheduled time and thus gives students a feel of facing
and completing deadlines.

5. To collect required data in the field in systematic ways.

2
6. To complete and manipulate the observed data in the required accuracy and present it in
diagrammatic and tabular form in such a way that it is understood other engineers easily
and gives the layman an idea of what has been done.

Thus, this survey camp was organized to give the students an opportunity to feel the
difference between theoretical knowledge and practical work and hence develop a quality in
them by virtue of which they will be able to make a link between the two different aspects
of engineering education.

1.3 Location and Accessibility


The department of survey had chosen the Dhampus Resort area as the site location. This is
peaceful, pollution free area and also the required idealized area for the survey camp.
Besides this, for bridge site survey Ghattey Khola was chosen. The road alignment site was
located about the Dhampus Resort Peripheral. Dhampus is about 25.4km north part form
Pokhara. There are many buses running to and from Dhampus to Pokhara. Our project area
was quite suitable and easily accessible. The details of the area are listed as below:

• Zone: Gandaki

• District: Kaski

• Place: Dhampus

Fig 1.3a: Area location from Hemja Road to Dhampus Resort

3
1.4 Camp Area
This portion of the report gives information about the Topography, Geology, Temperature
and Climate of the camp area i.e., Dhampus. The Nepalese town Dhampus is located North
of Pokhara Valley. The GPS coordinate of the Dhampus resort is (Northing, Easting) is
(28.2934702, 83.8687471). During the survey period, the temperature was between (18-23)
ºC at day time. The weather is pleasant during the day and nights are frequently bitterly cold
with some rainfall. The elevation of the camp area is 1694m from mean sea level. The camp
area we surveyed was mostly grass area having terrain topography. It is peaceful, pollution
free and idealized area as required for the survey.

➢ Temperature: Minimum 0 ºC to Maximum 25 ºC

➢ Rainfall: 29mm average

➢ Longitude: 28.2934702N

➢ Latitude: 83.8687471E

➢ Elevation: 1694m

➢ Major crops: Subtropical region with major crops Maize, Wheat and Millet.

4
CHAPTER II
TOPOGRAPHIC SURVEYING
2.1 General
Topographic survey involves determining the horizontal and vertical locations of objects on
the surface of the earth. Horizontal Location entails locating ‘objects’ like roads, railways,
ponds, houses, boundaries of properties, etc. by measuring horizontal distance; the objects
are indicated by symbols. Vertical location includes the location of hills, valleys,
depressions, benchmarks, RLs of points, etc. by measuring vertical distance; the objects in
this case are represented in relief. Thus, a topographic map shows the nature of the earth
surface along with the positions of different objects.
Topographical surveying is done to determine the position of natural and artificial features
on both plan and elevation. In other words, determining the configuration (relief) of the
earth's surface and to locate natural and cultural features on it is topographical survey. From
the survey data, topographic maps that depict these natural and cultural features are
produced using various types of lines and conventional symbols. Topographic is simply the
graphical representation of positions of the earth's surface.

2.2 Objectives
The main objective of topographical survey is:

1. To prepare the topographic map of the given area with horizontal and vertical control at
required accuracy.

2.3 Description of the Area


The area where topographic survey was performed, is situated at Dhampus, Kaski. The
major job was to prepare a topographic map of the area. It consists of two main structure of
the Hotel Block, Canteen Block, Hut, Electric pole etc. The rest of the area is mainly grass
land having terrain topography.

2.4 Technical Norms

1. Conduct reconnaissance survey of the given area. Form a close traverse (major) around
the perimeter of the area by making traverse stations. In the selection of the traverse
station, make sure that the stations are intervisible and maintain the ratio of maximum
traverse leg to minimum traverse leg 2:1 for major traverse and 3:1 in the case of minor
traverse.

5
2. Measure the traverse legs in the forward and backward directions by means of a tape
calibrated against the standard length provided in the field, note that discrepancy
between forward and backward measurements should be better than 1:2000.

3. Measure traverse angle on two sets of reading by theodolite. Note the difference
between the mean angles of two sets reading should be within minute.

4. Determine the R.L. of traverse stations by fly leveling from the given arbitrary B.M.
Perform two -peg- test before the start of fly leveling. Note the collimation error should
be less than 1:10000. Maintain equal fore sight and back sight distances to eliminate
collimation error. Permissible error for fly leveling is  25√k mm, where k is the
distance in kilometer.

5. R.L of B.M. is assumed at permanent place or given from previous record.

6. Balance the traverse. The permissible angular error for the sum of interior angles of the
traverse should be less than ±√n minute. For major and minor traverse, the relative
closing error should be less than 1:2000 and 1:1000 respectively.

7. Plot the major and minor traverse stations by coordinate method in appropriate scale
(1:500, 1:500 respectively).

8. Carry out the detail survey of the given area with reference to the major and minor
traverse, which have been already plotted. Use conventional symbols for plotting.

2.5 Instruments Used

1. Theodolite/ Total Station

2. Ranging rods

3. Tapes

4. Hammer

5. Wooden Pegs

6. Marker

6
7. Prism with prism rod

8. Prism Holder

9. Tripod

10. Drawing table and paper

2.6 Methodology
The methodology of surveying is based on the principle of surveying i.e., work from whole to
part with independent checks. The work done should be accurate and consistent.

2.6.1 Reconnaissance
Reconnaissance means the exploration or scouting of an area. In survey, it involves walking
around the survey area and roughly planning the number of stations and the position of the
traverse stations. Recce is primarily done to get an overall idea of the site. This helps to
make the necessary observations regarding the total area, type of land, topography,
vegetation, climate, geology and intervisibility conditions that help in detailed planning. The
following points have to be taken into consideration for fixing traverse stations:

1. The adjacent stations should be clearly intervisibility.

2. The whole area should include the least number of stations possible.

3. The traverse station should maintain the ratio of maximum traverse leg to minimum
traverse leg less than 3:1.

4. The steep slopes and badly broken ground should be avoided as far as possible, which may
cause inaccuracy in tapping.

5. The stations should provide minimum level surface required for setting up the instrument.

6. The traverse line of sight should not be near the ground level to avoid the refraction.

7. Taking the above given points into consideration, the traverse stations were fixed. Then
two-way taping was done for each traverse leg. Thus, permanent fixing of the control
points completes recce.

7
2.6.2 Major Traverse
Traversing is a type of survey in which a number of connected survey lines form a
framework enclosing the area to be surveyed. Working from whole to part is the principle.
So, the whole area is enclosed by number of control points of which details are necessary.
The skeleton of lines joining those control points, which covers the whole entire area is
called Major Traverse. Work on Major traverse must be precise. So, two-set of reading
should be taken for Major Traverse. For convenience, the readings are taken by setting the
theodolite at 0˚00'00" for one set and 90˚00'00" for the second. In the Survey area, only one
type traverse - major was established. The major traverse had 18 control stations including
one given control points.
The control stations were named as 1, 2, … and CP1 & CP2 was given control points. The
leg ratio of maximum traverse leg to minimum traverse leg was maintained within 2:1. The
discrepancy in length between the forward measurements and the backward measurements
of all the traverse legs was within 1:2000. Two sets of theodolite readings were taken for
measuring the horizontal traverse angles. The difference between the mean angles of two
sets of readings was within a second for all the angles.
Computation of Co-ordinates:
The length of the traverse is measured by total station. The traverse angles are measured
with a total station by setting up the instrument at each station. The bearing of the any one
of the traverse legs is measured and the entire traverse angle is measured, the bearing of all
the legs can be calculated by:
Bearing of a line = (bearing of previous line +included angle) (180) or (540)
If  is the bearing of line (say, 11G1), and l be the length of the line and provided that
coordinate of the control point (11G1) is known then the co-ordinate of the point ‘1’ and can
be calculated as follows:
X-coordinate of 1=x-coordinate of control point (CP1) +L*sin
Y-coordinate of 1=y-coordinate of control point (CP1) +L*cos
R.L or z-coordinate of 1=R.L of point (CP1) + H.I ±V-Height of signal.
Where, H. I=Height of instrument
V=vertical distance
It is not sufficient to detail the area by enclosing with the help of major traverse. Minor
traverse is that one which runs through the area to make detailing easy. Minor Traverse
covers only small area. Less precise work than that of major traverse is acceptable so that
single set reading is sufficient minor traverse. The discrepancy in length between the
8
forward measurements of all the traverse legs should within 1:3000. Two sets of theodolite
readings should be taken for measuring the horizontal traverse angles. The angular error for
the sum of interior angles of the traverse should be less than ± 1.5n minute. The relative
closing error for the major traverse should be less than 1:2000. Finally, the minor traverse
should be plotted by the coordinate method in a scale of 1:500 on an A3 size drawing paper.

2.7 Observation and Calculation


The observations and calculation made are tabulated below

9
OXFORD COLLEGE OF ENGIEERING AND MANAGEMENT
Gaindakot-2, Nawalparasi (Ba. Su. Pu.)
TOTAL CO- ORDINATE CALCULATION SHEET

GROUP: ___11__________ DATE: __________________

Consecutive Adjusted Consecutive Total (Independent)


Measured Horizontal Angle Correction
Corrected Bearing Coordinates (m) Coordinates Coordinates
Correction Latitude Departure
STN Leg Length (l ) Horizontal Angle (ϴ) in REMARK
in mun. (l (l Sinϴ)
D M S Decimal in decimal decimal LAT DEP LAT DEP LAT DEP
Cosϴ)

CP1 CP1-CP2 23.347 233 24 35 233.410 -0.153 233.407 242.000 -10.961 -20.614 0 0 -10.961 -20.614 3133006.114 781225.388 CP1
CP2 CP2-P4 30.073 96 16 15 96.271 -0.153 96.268 158.268 -27.936 11.135 0.00551 - -27.930 11.129 3132995.153 781204.774
0.00608
P4 P4-P5 22.018 168 12 10 168.203 -0.153 168.200 146.469 -18.354 12.163 0.00403 - -18.350 12.158 3132967.223 781215.903
0.00445
P5 P5-P6 29.893 156 6 0 156.100 -0.153 156.097 122.566 -16.091 25.193 0.00548 - -16.085 25.187 3132948.873 781228.061
0.00604
P6 26.020 130 20 20 130.339 -0.153 130.336 72.902 7.650 24.870 0.00477 - 7.655 24.865 3132932.788 781253.248
0.00526
P7 25.074 163 27 35 163.460 -0.153 163.457 56.359 13.891 20.875 0.00459 - 13.895 20.870 3132940.443 781278.113
0.00507
P8 29.978 214 4 45 214.079 -0.153 214.077 90.436 -0.228 29.977 0.00549 - -0.223 29.971 3132954.338 781298.982
0.00606
P9 27.946 100 51 45 100.863 -0.153 100.860 11.296 27.405 5.474 0.00512 - 27.410 5.468 3132954.115 781328.953
0.00565
P10 15.104 124 41 25 124.690 -0.153 124.688 315.984 10.862 -10.495 0.00277 - 10.865 -10.498 3132981.525 781334.422
0.00305
P11 16.941 254 7 0 254.117 -0.153 254.114 30.098 14.657 8.496 0.0031 - 14.660 8.492 3132992.390 781323.923
0.00343
P12 16.104 196 29 20 196.489 -0.153 196.486 46.584 11.068 11.698 0.00295 - 11.071 11.694 3133007.050 781332.416
0.00326
P13 18.737 126 25 25 126.424 -0.153 126.421 353.005 18.598 -2.282 0.00343 - 18.601 -2.286 3133018.121 781344.110
0.00379
P14 29.875 88 7 25 88.124 -0.153 88.121 261.126 -4.608 -29.517 0.00547 - -4.603 -29.523 3133036.722 781341.825
0.00604
P15 22.099 240 44 15 240.738 -0.153 240.735 321.861 17.381 -13.648 0.00405 - 17.385 -13.652 3133032.119 781312.301
0.00447
P16 21.193 145 11 30 145.192 -0.153 145.189 287.050 6.214 -20.262 0.00388 - 6.218 -20.266 3133049.504 781298.649
0.00429
P1 26.572 147 24 5 147.401 -0.153 147.399 254.449 -7.124 -25.599 0.00487 - -7.119 -25.605 3133055.722 781278.383
0.00537
10

P2 29.557 158 39 40 158.661 -0.153 158.659 233.108 -17.743 -23.639 0.00541 - -17.738 -23.645 3133048.603 781252.779
0.00598
P3 25.037 135 29 15 135.488 -0.153 135.485 188.593 -24.756 -3.741 - - -24.761 -3.746 3133030.865 781229.134
0.00459 0.00506
CP1 0.000 -0.153 -0.003 8.590 0.000 0.000 0 0 0.000 0.000 3133006.105 781225.388
435.568 2880.046 -2.903 2879.997454 -0.076 0.083 0.066 -0.083 -0.009

Number of stations= 18
Theoretical Sum of interior angles= 2880 degrees
Measured Sum = 2880.046 degrees
Error in angular measurement = 2.750 minutes
permissible error in angular closure= 4.243 minute
OK
Correction to each angle= -0.153 minutes

Perimeter of Traverse(P) = 435.568


Perimeter for Bowditch
412.221
(P’) =
Total Error in Latitude -0.076
(∑L) =
Total Error in Departure (∑D) = 0.083
Closing error (e) = 0.112
e/p = 0.0003
Permissible (e/p) 0.0005
OK

∑𝐿
𝐶𝑜𝑟𝑟𝑒𝑐𝑡𝑖𝑜𝑛 𝑡𝑜 𝑙𝑎𝑡𝑖𝑡𝑢𝑑𝑒 𝑜𝑓 𝑎 𝑙𝑖𝑛𝑒 ( 𝐶𝐿) = 𝑃′ 𝑥 𝑙𝑒𝑛𝑔𝑡 ℎ 𝑜𝑓 𝑡ℎ𝑒 𝑙𝑖𝑛𝑒

∑𝐷
𝐶𝑜𝑟𝑟𝑒𝑐𝑡𝑖𝑜𝑛 𝑡𝑜 𝑑𝑒𝑝𝑎𝑟𝑡𝑢𝑟𝑒 𝑜𝑓 𝑎 𝑙𝑖𝑛𝑒 (𝐶𝐷) = 𝑃′ 𝑥 𝑙𝑒𝑛𝑔𝑡 ℎ 𝑜𝑓 𝑡ℎ𝑒 𝑙𝑖𝑛𝑒

11
Detailing for topo map
S.N. N E Z REMARKS
1 3132967 781337.2 1376.117 1M6
2 3132942 781314.1 1372.384 1M5
2 3132942 781314.1 1372.384 1M5
3 3132952 781330 1375.743 1M5
4 3132951 781333.6 1375.799 1M5
5 3132952 781334.3 1375.854 1M5
6 3132951 781338.4 1376.163 1M5
7 3132966 781342.4 1376.115 1M5
8 3132959 781336.2 1375.921 1M5
9 3132957 781328 1375.655 1M5
10 3132962 781327.8 1377.176 1M5
11 3132957 781328 1377.228 1M5
12 3132963 781327.1 1377.606 1M5
13 3132978 781331.9 1377.721 1M5
14 3132978 781332.8 1377.673 1M5
15 3132978 781334.3 1377.29 1M5
16 3132975 781337.1 1377.163 1M5
17 3132970 781335.4 1376.161 1M5
18 3132971 781332.4 1376.06 1M5
19 3132976 781337.2 1377.499 1M5
20 3132975 781339.9 1377.483 1M5
21 3132974 781339.8 1376.41 1M5
22 3132979 781337.6 1377.553 1M5
23 3132978 781340.4 1377.541 1M5
24 3132984 781333.5 1377.753 1M5
25 3132982 781341.1 1377.647 1M5
26 3133003 781322 1380.717 1M5
26 3133003 781322 1380.717 1M5
26 3133003 781322 1380.717 1M5
1 3132967 781337.2 1376.117 1M6
26 3133003 781322 1380.717 1M7
27 3132993 781320.8 1378.511
28 3132993 781320.9 1378.096
29 3132995 781329.1 1378.566
30 3132993 781328.2 1377.603
31 3132994 781328.5 1378.154
32 3132996 781331.1 1377.601

13
33 3133002 781332 1380.718
34 3133002 781330.7 1380.749
35 3133001 781330.5 1380.297
36 3133001 781330.4 1379.57
37 3132999 781330.2 1379.498
38 3132999 781330 1378.961
39 3133003 781315.9 1380.396

40 3133003 781315.7 1379.712


41 3133002 781315.6 1378.94
42 3132999 781317.6 1379.491
43 3132999 781317.5 1378.586
44 3132993 781320.8 1378.495
45 3132993 781320.6 1377.604
46 3132990 781315.7 1377.389
47 3132996 781313.9 1378.184
48 3133000 781306 1378.623
49 3133004 781308.9 1379.182
50 3132981 781321.3 1377.744
51 3132981 781324.4 1377.502
52 3132983 781325.1 1377.478
53 3132982 781330 1377.487
54 3132980 781329.5 1377.465
55 3132985 781326 1377.488
56 3132987 781321.2 1377.442
57 3132982 781319.8 1377.455
58 3132988 781315.7 1377.42
59 3132983 781301.5 1377.08
60 3132966 781316.5 1377.642
61 3132966 781315.7 1377.648
62 3132961 781314.3 1377.156
63 3132962 781313.8 1376.544
64 3132964 781314.8 1376.556
65 3132970 781300.2 1376.467
66 3132965 781315.2 1376.964
67 3132971 781300.5 1376.847
68 3132970 781305.2 1377.038
27 3132993 781320.8 1378.511
27 3132993 781320.8 1378.511
14
26 3133003 781322 1380.717 1M5
69 3132996 781306.1 1375.673 1M5
70 3132992 781305.8 1376.551 1M5
71 3132992 781305.5 1376.11 1M5
72 3132999 781310.8 1376.072 1M5
73 3132992 781305.9 1376.401 1M5
74 3132989 781308.5 1378.821 1M5
75 3132992 781306.1 1378.911 1M5
76 3132982 781303.3 1378.778 1M5
77 3132984 781300.7 1378.995 1M5
78 3132981 781302.4 1378.759 1M5
79 3132980 781303.2 1378.738 1M5
80 3132979 781304.1 1379.095 1M5
81 3132986 781312.6 1379.187 1M5
82 3132988 781317.7 1379.168 1M5

83 3132986 781327.1 1379.404 1M5


84 3132984 781334 1378.83 1M5
85 3132990 781324.7 1378.773 1M5
86 3132989 781326.8 1378.784 1M5
87 3132991 781327.6 1378.761 1M5
88 3132992 781325.4 1378.747 1M5
89 3132996 781315.5 1377.378 1M5
90 3133001 781315.4 1376.475 1M5
91 3133003 781328.8 1375.596 1M5
92 3132981 781302 1378.755 1M5
92 3132981 781302 1378.755 1M5
27 3132993 781320.8 1378.511
92 3132981 781302 1378.755 1M5
27 3132993 781320.8 1378.511
93 3132982 781298.5 1378.795
94 3132980 781300 1378.859
95 3132973 781297.6 1378.261
96 3132979 781298.8 1378.354
97 3132972 781300 1378.424
98 3132971 781299.7 1378.4
99 3132970 781301.1 1378.519
100 3132970 781302.8 1378.655
101 3132969 781302.8 1379.341

15
102 3132969 781303.5 1380.168
103 3132968 781304.4 1380.815
104 3132974 781306.6 1379.472
105 3132974 781307.1 1380.085
106 3132973 781307.9 1380.81
107 3132973 781295.4 1375.859
108 3132972 781295.3 1375.867
109 3132975 781296.2 1376.28
110 3132981 781297.6 1376.659
111 3132982 781298.2 1376.886
112 3132980 781295 1375.395
113 3132979 781295.6 1375.373
92 3132981 781302 1378.755 1M5
27 3132993 781320.8 1378.511
114 3132996 781296.1 1381.007
115 3132996 781297.5 1381.031
116 3133002 781297 1383.663
117 3133002 781295.6 1383.656
118 3133008 781297.2 1385.46
119 3133008 781295.7 1385.437
120 3133012 781295.4 1386.684
121 3133012 781294.1 1386.722
122 3133013 781293.1 1386.928

123 3133009 781294.2 1387.007


124 3133009 781287.9 1387.89
125 3133011 781287.3 1387.894
126 3133006 781290.1 1386.984
127 3133005 781288.3 1387.002
128 3133005 781287.5 1386.989
129 3133004 781285 1386.987
130 3133003 781280.6 1386.915
131 3133005 781295.2 1385.383
132 3133001 781289.6 1385.379
133 3132999 781283.4 1385.316
134 3132998 781278.2 1385.404
135 3132999 781293.9 1383.24
136 3132995 781290.9 1383.26
137 3132994 781289.5 1382.802
16
138 3132995 781286 1381.778
139 3132995 781283.2 1381.143
140 3133010 781293.2 1386.948
140 3133010 781293.2 1386.948
92 3132981 781302 1378.755 1M5
140 3133010 781293.2 1386.948 1M9
92 3132981 781302 1378.755 1M5
141 3132975 781289 1379.714 1M9
142 3132974 781287.9 1379.905 1M9
143 3132973 781278.9 1379.547 1M9
144 3132977 781287.6 1380.814 1M9
145 3132976 781284.6 1380.8 1M9
146 3132975 781279.2 1380.755 1M9
147 3133002 781259.4 1385.325 1M9
147 3133002 781259.4 1385.325 1M9
140 3133010 781293.2 1386.948
147 3133002 781259.4 1385.325 1M10
147 3133002 781259.4 1385.325 1M10
140 3133010 781293.2 1386.948
147 3133002 781259.4 1385.325 1M10
140 3133010 781293.2 1386.948
147 3133002 781259.4 1385.325 1M10
140 3133010 781293.2 1386.948
148 3132973 781271.9 1379.311 1M10
149 3132967 781271.7 1377.84 1M10
150 3132964 781270 1377.801 1M10
151 3132966 781271.2 1377.697 1M10
152 3132972 781257.2 1378.014 1M10
153 3132983 781235 1378.576 1M10
154 3132986 781228.7 1379.232 1M10
155 3132987 781224.6 1379.921 1M10

156 3132983 781226.4 1379.601 1M10


157 3132982 781229 1378.936 1M10
158 3132981 781231.9 1377.818 1M10
159 3132976 781245.2 1377.77 1M10
160 3132969 781259.5 1377.975 1M10
161 3132969 781268.3 1378.148 1M10

17
162 3132988 781230 1379.499 1M10
163 3132984 781237.4 1378.512 1M10
164 3132984 781239.3 1378.563 1M10
165 3132977 781251.5 1379.389 1M10
166 3132974 781260 1379.322 1M10
167 3132972 781265.4 1379.15 1M10
168 3132969 781272 1379.012 1M10
169 3132977 781269.8 1380.635 1M10
170 3132978 781269.9 1380.732 1M10
171 3132981 781264.8 1380.689 1M10
172 3132983 781258.5 1380.643 1M10
173 3132988 781245.8 1380.662 1M10
174 3132991 781240.4 1380.637 1M10
175 3132992 781236.4 1380.743 1M10
176 3132991 781231 1380.678 1M10
177 3132992 781228.2 1380.449 1M10
178 3132956 781265.8 1376.573 1M10
179 3132959 781252.4 1376.565 1M10
180 3132958 781250.5 1376.483 1M10
181 3132956 781249.3 1376.481 1M10
182 3132954 781248.2 1376.494 1M10
183 3132948 781245.3 1376.549 1M10
184 3132946 781245.5 1376.535 1M10
185 3132943 781245.3 1376.685 1M10
186 3132937 781245.8 1376.368 1M10
187 3132930 781246.5 1376.216 1M10
188 3132933 781247.1 1375.866 1M10
189 3132934 781251.3 1375.892 1M10
190 3132927 781253.8 1375.86 1M10
191 3132955 781252 1375.625 1M10
192 3132953 781250.7 1375.641 1M10
193 3132944 781250.4 1375.562 1M10
194 3132940 781251.5 1375.577 1M10
195 3132931 781254.1 1375.366 1M10
196 3132949 781251 1375.164 1M10
197 3132945 781253.6 1375.435 1M10
198 3132941 781254.9 1375.43 1M10
199 3132937 781256.7 1375.431 1M10

18
200 3132929 781257.6 1375.214 1M10
201 3132929 781257.6 1375.209 1M10
202 3132921 781257.9 1375.338 1M10

203 3132914 781257.2 1375.272 1M10


204 3132910 781254.3 1375.223 1M10
205 3132970 781250.8 1377.43 1M10
206 3132972 781246.8 1377.262 1M10
207 3132971 781245.8 1376.837 1M10
208 3132968 781241.3 1376.922 1M10
209 3132963 781234.9 1376.884 1M10
210 3132954 781228.6 1376.959 1M10
211 3132939 781225.5 1377.044 1M10
212 3132916 781223.3 1376.89 1M10
213 3132910 781221.4 1376.769 1M10
214 3132934 781264.2 1374.984 1M10
215 3132940 781265.2 1374.983 1M10
216 3132950 781266.9 1375.044 1M10
217 3132955 781263.9 1375.863 1M10
218 3132954 781258 1375.853 1M10
219 3132955 781254.4 1375.737 1M10
220 3132957 781253.3 1375.89 1M10
221 3132976 781238.2 1377.464 1M10
222 3132977 781231.5 1377.44 1M10
223 3132964 781220 1377.357 1M10
224 3132956 781214.7 1377.891 1M10
225 3132950 781212.8 1377.813 1M10
226 3132944 781212.4 1377.375 1M10
227 3132939 781213 1377.446 1M10
228 3132932 781214.2 1377.216 1M10
229 3132991 781274.4 1380.692 1M10
230 3132988 781272.2 1380.792 1M10
231 3132985 781271.8 1380.726 1M10
232 3132979 781270.6 1380.581 1M10
233 3132993 781261.5 1380.476 1M10
234 3132988 781260.6 1380.513 1M10
235 3133003 781278.6 1387.108 1M10
236 3133005 781276.2 1386.86 1M10

19
237 3133004 781272.4 1386.887 1M10
238 3133004 781270.3 1386.842 1M10
239 3133006 781264.7 1386.85 1M10
240 3133007 781262 1386.883 1M10
241 3133009 781257.6 1386.845 1M10
242 3133009 781253.5 1386.793 1M10
243 3133009 781250.1 1386.869 1M10
244 3133010 781246.8 1386.756 1M10
245 3133010 781241.5 1386.794 1M10
246 3133011 781235.9 1386.8 1M10
247 3133013 781234.2 1386.822 1M10
248 3133012 781232.3 1386.08 1M10
249 3133010 781233 1386.16 1M10

250 3133008 781237 1386.044 1M10


251 3133006 781242.3 1385.846 1M10
252 3133006 781246.1 1386.18 1M10
253 3133008 781248.2 1385.907 1M10
1 3132967 781337.2 1376.117 1M6
254 3132968 781299.2 1372.694 1M6
255 3132958 781292.6 1372.616 1M6
256 3132955 781293.5 1372.403 1M6
257 3132943 781302.4 1372.124 1M6
258 3132940 781304.9 1372.181 1M6
259 3132937 781308.5 1372.211 1M6
260 3132936 781314.5 1372.204 1M6
261 3132937 781319.3 1372.316 1M6
262 3132937 781329.9 1372.344 1M6
263 3132947 781332.3 1372.749 1M6
264 3132948 781329 1372.679 1M6
265 3132947 781333.2 1372.681 1M6
266 3132945 781331.1 1372.685 1M6
267 3132959 781320.9 1372.952 1M6
268 3132960 781319.7 1372.996 1M6
2 3132942 781314.1 1372.384 1M5
269 3132964 781314.6 1373.145 1M6
270 3132966 781310 1372.862 1M6
271 3132966 781310.1 1373.408 1M6
272 3132969 781302.6 1372.632 1M6

20
273 3132969 781302.6 1373.412 1M6
274 3132971 781291.8 1372.75 1M6
275 3132974 781292.8 1373.342 1M6
276 3132945 781302.9 1372.259 1M6
277 3132955 781264.6 1372.94 1M6
278 3132951 781265.5 1372.939 1M6
279 3132946 781245.6 1372.568 1M6
280 3132946 781245.4 1372.912 1M6
281 3132934 781281.6 1371.122 1M6
281 3132934 781281.6 1371.122 1M6
2 3132942 781314.1 1372.384 1M5
281 3132934 781281.6 1371.122 1M6
281 3132934 781281.6 1371.122 1M4
282 3132957 781291.6 1371.964 1M4
283 3132955 781287.9 1371.892 1M4
284 3132949 781283.3 1371.926 1M4
285 3132947 781282.1 1371.762 1M4
286 3132944 781279.6 1371.76 1M4
287 3132940 781274.5 1371.713 1M4
288 3132937 781268.5 1371.751 1M4
289 3132936 781262 1371.737 1M4
290 3132936 781253.7 1371.75 1M4

291 3132939 781246.9 1371.711 1M4


292 3132939 781244.7 1371.914 1M4
293 3132940 781241.9 1371.963 1M4
294 3132940 781238.5 1372.041 1M4
295 3132952 781289.5 1371.489 1M4
296 3132953 781290.6 1372.205 1M4
297 3132960 781291.3 1372.533 1M4
298 3132965 781291.4 1372.632 1M4
299 3132970 781290.8 1372.872 1M4
300 3132980 781289.1 1373.903 1M4
301 3132979 781290 1373.95 1M4
302 3132977 781290.7 1373.814 1M4
303 3132975 781291 1373.647 1M4
304 3132951 781289.1 1371.424 1M4
305 3132949 781287.3 1371.507 1M4
306 3132946 781285.5 1371.546 1M4

21
307 3132941 781282.9 1371.543 1M4
308 3132937 781279.7 1371.417 1M4
309 3132934 781276.6 1371.595 1M4
310 3132932 781272.2 1371.577 1M4
311 3132931 781269 1371.471 1M4
312 3132930 781265.7 1371.514 1M4
313 3132929 781262.1 1371.569 1M4
314 3132930 781256.5 1371.53 1M4
315 3132930 781253.6 1371.384 1M4
316 3132931 781249.4 1371.441 1M4
317 3132929 781250.6 1371.083 1M4
318 3132928 781251.7 1371.077 1M4
319 3132926 781253.1 1371.059 1M4
320 3132924 781254.7 1371.127 1M4
321 3132924 781254.7 1371.126 1M4
322 3132921 781258.6 1370.619 1M4
323 3132919 781261 1370.644 1M4
324 3132918 781265.2 1370.598 1M4
325 3132919 781268 1370.624 1M4
326 3132920 781273.1 1370.506 1M4
327 3132923 781282.9 1370.097 1M4
328 3132928 781287.2 1370.342 1M4
329 3132932 781288.2 1370.142 1M4
330 3132935 781286.3 1370.308 1M4
331 3132933 781287.4 1370.183 1M4
332 3132935 781290 1369.975 1M4
333 3132938 781291.1 1369.896 1M4
334 3132942 781292.1 1370.05 1M4
335 3132945 781290.2 1371.091 1M4
336 3132939 781287.7 1371.151 1M4
337 3132936 781285.8 1371.192 1M4

338 3132935 781283.3 1371.034 1M4


339 3132932 781281.4 1371.154 1M4
340 3132928 781275.3 1371.25 1M4
341 3132926 781269.2 1371.063 1M4
342 3132925 781263.8 1371.153 1M4
343 3132923 781258.5 1371.044 1M4

22
344 3132939 781246.7 1371.754 1M4
345 3132939 781249.6 1371.977 1M4
346 3132941 781267.8 1371.991 1M4
347 3132943 781272.7 1371.891 1M4
348 3132946 781277.1 1372.01 1M4
349 3132949 781281.1 1371.829 1M4
350 3132957 781283.1 1372.281 1M4
351 3132954 781281.2 1372.287 1M4
352 3132950 781277.3 1372.245 1M4
353 3132948 781274.5 1372.207 1M4
354 3132946 781269.2 1372.264 1M4
355 3132944 781264.1 1372.217 1M4
356 3132943 781251 1372.33 1M4
357 3132942 781242.9 1372.204 1M4
358 3132945 781245.1 1372.328 1M4
359 3132937 781243.9 1371.55 1M4
359 3132937 781243.9 1371.55 1M3
360 3132937 781243.9 1371.55 1M3
361 3132934 781281.6 1371.135 1M6
362 3132958 781220 1375.601 1M6
362 3132958 781220 1375.601 1M6
360 3132937 781243.9 1371.55 1M3
360 3132937 781243.9 1371.55 1M3
362 3132958 781220 1375.601 1M2
360 3132937 781243.9 1371.55 1M3
363 3132947 781240.4 1372.839 1M2
364 3132947 781236.3 1372.899 1M2
365 3132947 781231.9 1372.776 1M2
366 3132946 781231.1 1373.649 1M2
367 3132946 781225.7 1373.512 1M2
368 3132946 781227.5 1373.534 1M2
369 3132951 781233.1 1373.506 1M2
370 3132948 781245 1372.408 1M2
371 3132951 781244.3 1372.768 1M2
372 3132952 781244 1373.195 1M2
373 3132954 781252.7 1373.118 1M2
374 3132956 781261.7 1373.124 1M2
375 3132960 781264.3 1373.675 1M2

23
376 3132959 781257.3 1373.692 1M2
377 3132956 781247.5 1373.659 1M2
378 3132953 781238 1373.572 1M2

379 3132950 781223.9 1374.223 1M2


380 3132952 781229.2 1374.213 1M2
381 3132956 781233.6 1374.185 1M2
382 3132959 781243.9 1374.217 1M2
383 3132962 781252.3 1374.325 1M2
384 3132964 781264.5 1374.214 1M2
385 3132967 781272.9 1374.218 1M2
386 3132974 781278.2 1374.318 1M2
387 3132979 781280 1374.538 1M2
388 3132982 781276.7 1374.966 1M2
389 3132978 781275.2 1374.931 1M2
390 3132970 781269.9 1374.831 1M2
391 3132968 781258.4 1374.972 1M2
392 3132966 781251.2 1374.893 1M2
393 3132964 781245 1374.901 1M2
394 3132962 781239.7 1374.921 1M2
395 3132959 781232.9 1374.779 1M2
396 3132956 781228.1 1374.997 1M2
397 3132958 781224 1374.875 1M2
398 3132975 781267 1375.324 1M2
399 3132973 781262.2 1375.322 1M2
400 3132970 781250.2 1375.293 1M2
401 3132967 781241.1 1375.494 1M2
402 3132963 781232.7 1375.485 1M2
403 3132960 781227.5 1375.489 1M2
404 3132957 781218.6 1375.527 1M2
405 3132940 781237.3 1371.534 1M2
406 3132941 781226.7 1372.186 1M2
407 3132950 781224.1 1373.672 1M2
408 3132951 781221.6 1374.2 1M2
409 3132962 781217.2 1375.554 1M2
410 3132973 781208.7 1376.346 1M2
411 3132988 781197.4 1377.303 1M2
412 3132992 781196.8 1377.645 1M2

24
413 3132964 781223.7 1375.88 1M2
414 3132969 781232.3 1375.858 1M2
415 3132971 781239 1375.826 1M2
416 3132973 781240.2 1375.85 1M2
417 3132977 781240.1 1375.802 1M2
418 3132981 781243 1375.852 1M2
419 3132986 781245.9 1375.868 1M2
420 3132983 781256.3 1375.466 1M2
421 3132973 781209.4 1376.412 1M2
422 3132973 781219.8 1376.521 1M2
423 3132977 781232.9 1376.482 1M2
424 3132982 781239.8 1376.394 1M2
425 3132989 781240.6 1376.262 1M2
426 3132997 781242.2 1376.342 1M2
427 3132986 781239.8 1376.285 1M2
428 3132984 781234.3 1376.473 1M2
429 3132987 781230.6 1376.894 1M2
430 3132997 781235.6 1376.941 1M2
431 3133006 781237 1376.99 1M2
432 3133011 781236.6 1376.975 1M2
433 3133011 781236.6 1376.995 1M2
362 3132958 781220 1375.601 1M6
359 3132937 781243.9 1371.55 1M4
362 3132958 781220 1375.601 1M6
359 3132937 781243.9 1371.55 1M4
434 3132939 781241.9 1376.821 1M2
435 3132938 781245.4 1376.898 1M2
436 3132952 781244.8 1377.084 1M2
437 3132956 781247.4 1376.948 1M2
438 3132951 781240.9 1376.947 1M2
439 3132947 781238.5 1376.99 1M2
440 3132943 781238.1 1377.082 1M2
441 3132940 781238.5 1376.918 1M2
442 3132957 781252.5 1377.701 1M2
443 3132952 781249.8 1377.685 1M2
444 3132923 781259.8 1377.749 1M2
444 3132923 781259.8 1377.749 1M2
362 3132958 781220 1375.601 1M6

25
444 3132923 781259.8 1377.749 CP2
362 3132958 781220 1375.601 1M6
445 3132953 781264.8 1377.645 CP2
446 3132929 781265.6 1377.922 CP2
447 3132867 781278.6 1379.194 CP2
448 3132896 781267 1377.013 CP2
449 3132872 781271.6 1379.014 CP2
450 3132900 781277.9 1378.741 CP2
451 3132951 781247.7 1377.172 CP2
452 3132926 781250.9 1377.694 CP2
453 3132935 781246 1377.668 CP2
454 3132952 781249.9 1377.664 CP2

CHAPTER II
FLY LEVELLING
3.1 General
Levelling is a branch of surveying whose objectives are to:

a) Find the elevations of given points with respect to a given or assumed datum.

b) Establish points at a given elevation or at different elevations with respect to a given or


assumed datum.

The first operation is required to enable the works to be designed while the second operation
is required in the setting out of all kinds of engineering works. Levelling deals with
measurements in a vertical plane. To provide vertical control in topographic map, the
elevations of the relevant points must be known so that complete topography of the area can
be explored. Levelling was performed to determine the elevation (relative height from a
given datum). Fly levelling was done on the camp area.
A. Differential levelling
It is the method of direct levelling, the object of which is solely to determine the difference
in elevation of two points regardless of the horizontal positions of the points with respect of
each other. This type of levelling is also known as fly levelling.

26
B. Profile levelling
It is the method of direct levelling the object of which is to determine the elevations of
points at measured intervals along a given line in order to obtain a profile of the surface
along that line.
C. Cross-sectioning
Cross-sectioning or cross levelling is the process of taking levels on each side of main line at
right angles to that line, in order to determine a vertical cross-section of the surface of the
ground, or of underlying strata, or of both.
D. Reciprocal Levelling
It is the method of levelling in which the difference in elevation between two points is
accurately determined by two sets of reciprocal observations when it is not possible to set up
the level between the two points. E. Indirect levelling:

Indirect method or trigonometric levelling is the process of levelling in which the elevations
of points are computed from the vertical angles and horizontal distance measured in the
field, just as the length of any side in any triangle can be computed from proper
trigonometric relations.

3.2 Temporary adjustment of level


The temporary adjustment of level involves following steps:

a) Setting up the level: The operation of setting up includes fixing the instrument on the
stand and leveling the instrument approximately.

b) Leveling: Accurate levelling is done with the help of foot screws and with reference
to the plate bubble. The purpose of levelling is to make the vertical axis truly
vertical. It can be done by adjusting the screws.

c) Removal of parallax: Parallax is a condition when the image formed by the objective
is not in the plane of the cross hairs. Parallax is eliminated by focusing the eyepiece
for distinct vision of the cross hairs and by focusing the objective/object glass to
bring the sharp image of the object in the plane of cross hairs and to eliminate the
parallax.

27
3.3 Permanent adjustment of level
To check for the permanent adjustments of level two-peg test method should be performed.
Two staffs were placed at A and B of known length (about 20 m). First, the instrument was
setup at the middle point C and both staff readings were taken. Then the machine was held
near A and both staff readings (Top, Middle, and Bottom) were taken again. Then
computation was made as follows in order to check whether the adjustment was required or
not. The precision obtained was lesser than that of required precision i.e. 1 in 20000. So,
for the permanent adjustment of level the backward and forward distance were kept equal
during the levelling operation.

Fig 3.3a: Two Peg Test

3.4 Booking of RL
A Level Book is used for booking of RL of various points in a systematic way. There are two
methods for booking of RL:

1. The Height of Instrument Method

2. The Rise & Fall Method

In the Survey Camp, we adopt Rise & Fall method for booking of RL.
Rise & Fall Method
The difference of level between two consecutive points is determined by comparing each forward
staff reading with the staff reading at the immediately preceding point.
Arithmetic Check:
B.S. – F.S. = Rise –Fall = Last R.L. – First R.L
Height of Instrument Method Arithmetic
Check:
B.S. – F.S. = Last R.L. – First R.L.

28
3.5 Instrument used

1. Level Machine

2. 2 Staff

3. Tape

4. Hammer

5. Marker

3.6 Observations & Calculations

The Observations made are all tabulated below:

29
OXFORD COLLEGE OF ENGINEERING AND MANAGEMENT
Gaindakot-2, Nawalparasi (Ba. Su. Pu.)
FLY LEVELLING SHEET
GROUP: --------------------------- DATE: ----------------

---------- Loop 1 (BM


to TBM)

Forward Observations
BACK SIGHT FORE SIGHT Horiz.
S= Distance
STN. RISE FALL RL REMARKS
S1=TB (S1+S2) (100S)
T M B Avg. T M B Avg. S2=T-B

S1 1.489 1.415 1.343 1.4157 0.146 0.146 14.600 1368.000 BM

S2 1.992 1.921 1.852 1.9217 0.14 0.864 0.795 0.727 0.7953 0 0.6203 0.0000 0.14 14.000 1368.620

S3 1.505 1.43 1.355 1.43 0.15 1.05 0.98 0.91 0.98 0.14 0.9417 0.0000 0.29 29.000 1369.562

S4 1.694 1.619 1.544 1.619 0.15 0.945 0.87 0.795 0.87 0.15 0.5600 0.0000 0.3 30.000 1370.122

S5 1.784 1.761 1.737 1.7607 0.047 0.8 0.726 0.653 0.7263 0.147 0.8927 0.0000 0.194 19.400 1371.015

S6 1.544 1.518 1.492 1.518 0.052 0.986 0.961 0.936 0.961 0.05 0.7997 0.0000 0.102 10.200 1371.814
30
S7 1.621 1.592 1.564 1.5923 0.057 0.745 0.72 0.695 0.72 0.05 0.7980 0.0000 0.107 10.700 1372.612

S8 1.893 1.868 1.843 1.868 0.05 0.613 0.584 0.554 0.5837 0.059 1.0087 0.0000 0.109 10.900 1373.621

S9 1.915 1.88 1.845 1.88 0.07 0.903 0.879 0.855 0.879 0.048 0.9890 0.0000 0.118 11.800 1374.610

S10 1.599 1.567 1.534 1.5667 0.065 0.939 0.906 0.873 0.906 0.066 0.9740 0.0000 0.131 13.100 1375.584

S11 0 0 0.683 0.6525 0.622 0.6525 0.061 0.9142 0.0000 0.061 6.100 1376.498 TBM

Sum 16.572 8.0738 0.771 8.4982 0 1.698 169.800

Calculation Check:
Loop 1 Forward Observations
⅀BS-⅀FS = 8.498 Last RL-First RL = 8.498
⅀Rise-⅀Fall = 8.498
Remarks

Loop 1 Backward Observation


Backward Observations
BACK SIGHT FORE SIGHT Horiz.
S=
STN. RISE FALL Distance RL REMARKS
S1=TB (S1+S2)
T M B Avg. T M B Avg. S2=T-B (100S)

31
S1 0.692 0.662 0.632 0.662 0.06 0.000 1376.498 TBM

S2 0.855 0.83 0.805 0.83 0.05 1.501 1.472 1.443 1.472 0.058 0.0000 0.8100 0.108 10.800 1375.688

S3 0.846 0.819 0.791 0.8187 0.055 1.605 1.58 1.555 1.58 0.05 0.0000 0.7500 0.105 10.500 1374.938

S4 0.896 0.872 0.848 0.872 0.048 1.731 1.704 1.677 1.704 0.054 0.0000 0.8853 0.102 10.200 1374.052

S5 0.646 0.621 0.597 0.6213 0.049 1.634 1.608 1.584 1.6087 0.05 0.0000 0.7367 0.099 9.900 1373.316

S6 0.694 0.654 0.614 0.654 0.08 1.341 1.316 1.292 1.3163 0.049 0.0000 0.6950 0.129 12.900 1372.621

S7 0.921 0.87 0.818 0.8697 0.103 1.755 1.715 1.675 1.715 0.08 0.0000 1.0610 0.183 18.300 1371.560

S8 0.784 0.704 0.625 0.7043 0.159 1.812 1.759 1.707 1.7593 0.105 0.0000 0.8897 0.264 26.400 1370.670

S9 1.146 1.099 1.051 1.0987 0.095 1.718 1.637 1.557 1.6373 0.161 0.0000 0.9330 0.256 25.600 1369.737

S10 1.186 1.146 1.106 1.146 0.08 1.355 1.305 1.255 1.305 0.1 0.0000 0.2063 0.18 18.000 1369.531

S11 0.716 0.666 0.617 0.6663 0.099 1.647 1.607 1.567 1.607 0.08 0.0000 0.4610 0.179 17.900 1369.070

S12 0 0 1.761 1.711 1.663 1.7117 0.098 0.0000 1.0453 0.098 9.800 1368.024 BM

Sum 8.943 17.416 0.885 0 8.4733 1.703 170.3

Calculation Check:
Loop 1 Backward Observations

32
⅀BS-⅀FS = -8.473 Last RL-First RL = -8.473
⅀Rise-⅀Fall = -8.473
Remarks

Observational Check:
Error in RL in measurement= RL of starting point-RL of the same point at closing = -0.024 Total
Distance of FS and BS = 340.1 m = 0.3401 km Permissible error = ± 14.58
mm Re-
marks:

Forward Observations
BACK SIGHT FORE SIGHT Horiz.
S=
STN. RISE FALL Distance RL REMARKS
S1=TB (S1+S2)
T M B Avg. T M B Avg. S2=T-B (100S)

S1 1.406 1.376 1.346 1.376 0.06 0 0.06 6.000 1376.498 TBM

S2 1.511 1.486 1.461 1.486 0.05 0.691 0.661 0.631 0.661 0 0.7150 0.0000 0.05 5.000 1377.213

S3 1.543 1.493 1.493 1.5097 0.05 0.783 0.757 0.731 0.757 0.052 0.7290 0.0000 0.102 10.200 1377.942

S4 1.525 1.505 1.485 1.505 0.04 0.705 0.68 0.656 0.6803 0.049 0.8293 0.0000 0.089 8.900 1378.771

S5 1.527 1.502 1.477 1.502 0.05 0.746 0.726 0.706 0.726 0.04 0.7790 0.0000 0.09 9.000 1379.550

S6 1.534 1.509 1.484 1.509 0.05 1.024 0.998 0.972 0.998 0.052 0.5040 0.0000 0.102 10.200 1380.054

S7 1.361 1.306 1.251 1.306 0.11 1.18 1.155 1.13 1.155 0.05 0.3540 0.0000 0.16 16.000 1380.408

33
S8 1.448 1.362 1.276 1.362 0.172 0.979 0.903 0.827 0.903 0.152 0.4030 0.0000 0.324 32.400 1380.811

S9 1.256 1.181 1.106 1.181 0.15 0.99 0.905 0.82 0.905 0.17 0.4570 0.0000 0.32 32.000 1381.268

S10 1.415 1.357 1.299 1.357 0.116 1.034 0.959 0.884 0.959 0.15 0.2220 0.0000 0.266 26.600 1381.490

S11 0.792 0.773 0.754 0.773 0.038 0.928 0.87 0.812 0.87 0.116 0.4870 0.0000 0.154 15.400 1381.977

S12 0.932 0.898 0.874 0.9013 0.058 1.576 1.556 1.536 1.556 0.04 0.0000 0.7830 0.098 9.800 1381.194

S13 1.171 1.111 1.051 1.111 0.12 1.518 1.493 1.469 1.4933 0.049 0.0000 0.5920 0.169 16.900 1380.602

S14 1.096 1.061 1.026 1.061 0.07 1.579 1.519 1.459 1.519 0.12 0.0000 0.4080 0.19 19.000 1380.194

S15 0.709 0.68 0.65 0.6797 0.059 1.336 1.301 1.266 1.301 0.07 0.0000 0.2400 0.129 12.900 1379.954

S16 1.028 1.007 0.986 1.007 0.042 1.815 1.785 1.755 1.785 0.06 0.0000 1.1053 0.102 10.200 1378.849

S17 0 0 1.063 1.042 1.021 1.042 0.042 0.0000 0.0350 0.042 4.200 1378.814 SBM

Sum 19.627 17.311 5.4793 3.1633 2.447 244.700

Calculation Check:
Loop 1 Forward Observations
⅀BS-⅀FS = 2.316 Last RL-First RL = 2.316
⅀Rise-⅀Fall = 2.316
Re-

marks:

Forward Observations
STN. BACK SIGHT FORE SIGHT RISE FALL S= Horiz. RL REMARKS

34
S1=TB Distance
T M B Avg. T M B Avg. S2=T-B (S1+S2)
(100S)

S1 1.063 1.042 1.021 1.042 0.042 0.042 4.200 1378.819 SBM

S2 1.864 1.831 1.799 1.8313 0.065 1.028 1.007 0.986 1.007 0.042 0.0350 0.0000 0.107 10.700 1378.854

S3 1.697 1.603 1.509 1.603 0.188 0.759 0.725 0.691 0.725 0.068 1.1063 0.0000 0.256 25.600 1379.960

S4 1.556 1.531 1.506 1.531 0.05 1.047 0.952 0.857 0.952 0.19 0.6510 0.0000 0.24 24.000 1380.611

S5 1.721 1.671 1.621 1.671 0.1 0.767 0.7425 0.718 0.7425 0.049 0.7885 0.0000 0.149 14.900 1381.400

S6 0.921 0.881 0.701 0.8343 0.22 1.478 1.428 1.378 1.428 0.1 0.2430 0.0000 0.32 32.000 1381.643

S7 1.14 1.074 1.009 1.0743 0.131 1.39 1.28 1.17 1.28 0.22 0.0000 0.4457 0.351 35.100 1381.197

S8 0.943 0.872 0.801 0.872 0.142 1.294 1.23 1.165 1.2297 0.129 0.0000 0.1553 0.271 27.100 1381.042

S9 1.151 1.12 1.09 1.1203 0.061 1.444 1.374 1.304 1.374 0.14 0.0000 0.5020 0.201 20.100 1380.540

S10 0.701 0.67 0.6385 0.6698 0.0625 1.556 1.5265 1.497 1.5265 0.059 0.4062 0.1215 12.150 1380.133

S11 0.664 0.637 0.61 0.637 0.054 1.502 1.4715 1.4405 1.4713 0.0615 0.8015 0.1155 11.550 1379.332

S12 0.776 0.748 0.72 0.748 0.056 1.664 1.637 1.61 1.637 0.054 1.0000 0.11 11.000 1378.332

S13 0.601 0.565 0.529 0.565 0.072 1.592 1.564 1.537 1.5643 0.055 0.0000 0.8163 0.127 12.700 1377.516

S14 0 0 1.6 1.563 1.525 1.5627 0.075 0.0000 0.9977 0.075 7.500 1376.518 TBM

Sum 14.199 16.5 2.8238 5.1247 2.486 248.600

Calculation Check:
35
Loop 1 Forward Observations
⅀BS-⅀FS = -2.301

Last RL-First RL = -2.301

⅀Rise-⅀Fall = -2.301
Re-

marks:

Observational Check:
Error in RL in measurement= RL of starting point-RL of the same point at closing = -0.020 Total Distance of
FS and BS = #### m = 0.249 km Permissible error = ± 12.46 mm
Remarks: Hence the error is in between permissible error

Forward Observations
BACK SIGHT FORE SIGHT Horiz.
S=
STN. RISE FALL Distance RL REMARKS
S1=TB (S1+S2)
T M B Avg. T M B Avg. S2=T-B (100S)

S1 1.063 1.042 1.021 1.042 0.042 0.042 4.200 1378.819 SBM

S2 1.759 1.726 1.726 1.737 0.033 1.028 1.007 0.986 1.007 0.042 0.0350 0.0000 0.075 7.500 1378.854

S3 1.546 1.471 1.396 1.471 0.15 0.652 0.619 0.586 0.619 0.066 1.1180 0.0000 0.216 21.600 1379.972

S4 1.402 1.362 1.322 1.362 0.08 1.015 0.94 0.865 0.94 0.15 0.5310 0.0000 0.23 23.000 1380.503

36
S5 1.829 1.801 1.774 1.8013 0.055 0.712 0.672 0.632 0.672 0.08 0.6900 0.0000 0.135 13.500 1381.193

S6 1.528 1.509 1.49 1.509 0.038 0.883 0.855 0.8275 0.8552 0.0555 0.9462 0.0000 0.0935 9.350 1382.139

S7 0.831 0.781 0.731 0.781 0.1 0.995 0.978 0.961 0.978 0.034 0.5310 0.0000 0.134 13.400 1382.670

S8 1.104 1.004 0.904 1.004 0.2 1.779 1.729 1.679 1.729 0.1 0.0000 0.9480 0.3 30.000 1381.722

S9 1.096 1.064 1.032 1.064 0.064 1.549 1.449 1.349 1.449 0.2 0.0000 0.4450 0.264 26.400 1381.277

1.566 1.531 1.496 1.531 0.07 0.0000 0.4670 1380.810 CP1

Sum 11.771 9.7802 3.8512 1.8600 1.4895 148.950

Calculation Check:
Loop 1 Forward Observations
⅀BS-⅀FS = 1.991166667
Last RL-First RL = 1.991 ⅀Rise-⅀Fall = 1.991
Re-

marks:

Forward Observations
BACK SIGHT FORE SIGHT Horiz.
S=
STN. RISE FALL Distance RL REMARKS
S1=TB (S1+S2)
T M B Avg. T M B Avg. S2=T-B (100S)

S1 1.556 1.531 1.496 1.5277 0.06 0.06 6.000 1380.810 CP1

37
S2 1.58 1.47 1.36 1.47 0.22 1.096 1.064 1.032 1.064 0.064 0.4637 0.0000 0.284 28.400 1381.274

S3 1.901 1.856 1.811 1.856 0.09 1 0.89 0.78 0.89 0.22 0.5800 0.0000 0.31 31.000 1381.854

S4 0.768 0.738 0.708 0.738 0.06 1.086 1.04 0.994 1.04 0.092 0.8160 0.0000 0.152 15.200 1382.670

S5 0.691 0.667 0.642 0.6667 0.049 1.966 1.937 1.908 1.937 0.058 0.0000 1.1990 0.107 10.700 1381.471

S6 1.215 1.155 1.095 1.155 0.12 1.557 1.531 1.506 1.5313 0.051 0.0000 0.8647 0.171 17.100 1380.606

S7 1.171 1.137 1.103 1.137 0.068 1.641 1.553 1.492 1.562 0.149 0.0000 0.4070 0.217 21.700 1380.199

S8 0.769 0.735 0.701 0.735 0.068 1.416 1.38 1.344 1.38 0.072 0.0000 0.2430 0.14 14.000 1379.956

S9 1.122 1.101 1.08 1.101 0.042 1.887 1.853 1.82 1.8533 0.067 0.0000 1.1183 0.109 10.900 1378.838

S10 0 0 1.146 1.125 1.103 1.1247 0.043 0.0237 0.043 4.300 1378.814 SBM

Sum 10.386 12.382 1.8597 3.8557 1.593 159.300

Calculation Check:
Loop 1 Forward Observations
⅀BS-⅀FS = -1.996 Last RL-First RL = -1.996
⅀Rise-⅀Fall = -1.996
Re-

marks:

Observational Check:

38
Error in RL in measurement= RL of starting point-RL of the same point at closing = 0.005 Total Distance of FS
and BS = #### m = 0.159 km Permissible error = ± 9.978 mm
Remarks: Hence the error is in between permissible error

39
CHAPTER IV
ROAD ALIGNMENT SURVEY
4.1 Geology, Hydrology and Soil
This part of the Survey Camp dealt with the road alignment survey done at Dhampus village
area. The duration of the survey was one day. The altitude of the speculated site was about
1650 meters from the sea level. The area where the road alignment survey was done was
grassy land with terrain topography where large amount of cutting filling was required.

4.2Technical Specifications
While performing the road alignment survey, the following norms were strictly followed:

a. The road had to be designed for a width of 5m and length of as given in site.

b. If the external deflection angle at the I.P. of the road is less than 30º, curves
need not be fitted.

c. Simple horizontal curves had to be laid out where the road changed its
direction, determining and pegging three points on the curve - the beginning
of the curve, the middle point of the curve and the end point of the curve along
the centerline of the road.

d. The radius of the curve had to be greater than 10 m and

e. The gradient of the road had to be maintained below 7%

f. Cross sections had to be taken at 20 m intervals and also at the beginning,


middle and end of the curve, along the centerline of the road - observation
being taken for at least 10 m on either side of the centerline.

g. Plan of the road had to be prepared on a scale of 1:1000.

h. L-Section of the road had to be plotted on a scale of 1:1000 horizontally and


1:1000 vertically.

i. The cross section of the road had to be plotted on a scale of 1:100 (both
vertical and horizontal).

40
j. The amount of cutting and filling required for the road construction had to be
determined from the L-Section and the cross sections. However, the volume of
cutting had to be roughly equal to the volume of filling.

4.3 Equipment & Accessories

a) Total Station

b) Staffs

c) Ranging rods

d) Tapes

e) Hammer

f) Nails and pegs

4.4 Methodology
4.4.1Reconnaissance
The reconnaissance survey was carried out from the point nearer to hostel building. Pegging
was done at different places and the possible I.P.s were also marked and pegged. The
condition of intervisibility was checked at each step.

4.4.2 Horizontal Alignment


The locations of the simple horizontal curves were determined carefully considering factors
like the stability of the area, enough space for the turning radius, etc. The IP was fixed so
that the gradient of the road at any place was less than 7 - 10%. After determining the IP for
the road, total station was stationed at each IP and the deflection angles measured. The
distance between one IP and another was measured by two-way taping.
The horizontal curves were set out by angular methods using theodolite at I.P. and tape. The
radius of the curve was fixed first, assuming it to be more than 10 m. Then for that radius,
the tangent length and apex distance of the curve were calculated using the following
formulas:
Tangent length = R Tan∆/2
Apex distance = R (Sec ∆/2 -1)
Length of curve = πR∆ /180

41
Fig4.4.2 a.: Simple Circular Curve
After performing the necessary calculations, the points, the points BC and EC were fixed at
a distance equal to the tangent length from IP using a tape. Then the line bisecting the
internal angle at the IP was found out with the help of a theodolite. And on this line, a peg
was driven at point M at a distance equal to the apex distance from the IP. Then, the
necessary calculations were done, thus giving the required numerical values of the different
parameters. 4.4.3 Longitudinal Section
The L-Section of the road is required to give the road engineer an idea about the nature of
the ground and the variation in the elevations of the different points along the length of the
road and also to determine the amount of cutting and filling required at the road site for
maintaining a gentle slope. In order to obtain the data for L-Section, staff readings were
taken at points at 20 m intervals along the centreline of the road with the help of a level by
the method of fly levelling. And thus, after performing the necessary calculations, the level
was transferred to all those points with respect to the R.L. of the given B.M. Then finally the
L-Section of the road was plotted on a graph paper on a vertical scale of 1:200 and a
horizontal scale of 1:1000. 4.4.4 Cross-section
Cross sections at different points are drawn perpendicular to the longitudinal section of the
road on either side of its centreline, 10m on each side in order to present the lateral outline
of the ground. Cross sections are also equally useful in determining the amount of cut and
42
fill required for the road construction. Cross sections were taken at 20m intervals along the
centreline of the road and also at points where there was a sharp change in the elevation.
While doing so, the horizontal distances of the different points from the centreline were
measured with the help of a tape and the vertical heights with a measuring staff. The R.L.
was transferred to all the points by performing the necessary calculations and finally, the
cross sections at different sections were plotted on a graph paper on a scale of 1:100 both
vertical and horizontal.

4.5 Curve Setting


The preliminary survey doesn't involve in the actual setting of the curves in the field but
only the computations of curve elements so as to locate these elements such as the tangent
point’s apexes of the curves along the proposed route. The elements of the curve are
computed in the field from the observed deflection angle and the recommended standard
radius of Curvature. The location of the tangent points and the apexes at the curves are
significant because the cross-section and the longitudinal section observations are need for
these points. In the alignment of the proposed route under study, only simple circular curves
were introduced. Curve setting is process of changing the direction of motion. During the
survey of road following formula was used to calculate the elements of curve. And it was
taken in mind that as far as possible the radius of curvature was tried to take more than 12
m. (refer above figure)
Curve length = π*R*∆/180°
Tangent Length= R*Tan∆/2
Apex Length= R*(sec∆/2-1)
Where, R= radius of curve
∆= Angle of deflection
Circular curves are provided in sharp turns to make the vehicles easy and to avoid the
accidents of the vehicles while turning. In the field, a simple circular curve was set at station
IP. the method of setting out curves can be mainly divided into:
Linear method
In linear methods, only a chain or tape is used. Linear methods are used when
a) A high degree of accuracy is not required.
b) The curve is short.
Following are some of the linear methods for setting out simple circular curves:-

i. By ordinates or offsets from the chord.

43
ii. By successive bisection of arcs.

iii. By offsets from the tangents. iv. By offsets from the chords produced.

v. Instrument method.

The following are instrument method used for setting out a circular curve:

a) Rankine's method of tangential (or deflection) angle.

b) By ordinates or offsets from the chord.

c) By offsets from the tangents.

Calculations and the sample drawings are attached after the comments and conclusions.

4.6 Observation and Calculations


After the work of taking the data was completed, all the necessary calculations were done
and tabulated in systematic order. The calculations were done in order to compute the
Chainage of the different distinct points of the road using the following relations: Chainage
of beginning of curve, BC= Chainage of I.P. - Tangent length
Chainage of mid-point of curve, MC = Chainage of BC + 1/2* Curve length
Chainage of end of curve, EC = Chainage of BC + Curve length
Similarly, Chainage of an I.P. = Chainage of previous I.P. + I.P. to I.P. distance.
The R.L. of the different points was also computed using this formula.
R.L. of a point = R.L. of station + Height of Instrument + H * Tan  - Mid hair reading
Where,  = Vertical Angle
All the data, calculation (in a tabulated form) and the drawings of the necessary plan,
longitudinal section and the cross section of the road are attached with this report.

4.7 Comments and Conclusions


Survey of the road alignment is done to make safe, easy, short and economical road.
Geological stability and soil stability are also taken into account. Vertical and horizontal
curves are set according to Road Design Standards for comfort and other factors. While
setting the road alignment, it should be kept in mind that the minimum IP points should be
taken as far as possible and deflection angles should be minimal as far as possible.

44
OXFORD COLLEGE OF ENGINEERING AND MANAGEMENT
Gaindakot-2, Nawalparasi (Ba. Su. Pu.)
DETAILING USING TOTAL STATION
GROUP: ------------------ Measurement Sheet for HD/VD or Coordinate system
Sighted To
INSTRUMENT
HD / VD Method or Coordinate System

Horizontal Angle Bearing


RE-
MARKS
STN H.I. POINT D M S Decimal D M S Decimal Horiz. Lat. Dep. Vertcal PH N E Z
ID distance Distance

IP1 1380.8
IP1 1.394 0+000 0 0 0 0.0 81 41 49.5 81.7 29.5 29.525 0.0 1.8 2 3133020.9 781024.3 1382.5
IP1 R2 3 55 6 3.9 85 36 54.0 85.6 29.5 29.4 2.0 1.7 2 3133050.3 781026.3 1381.0
R4 7 46 1 7.8 89 27 50.4 89.5 29.5 29.193 4.0 1.8 2 3133079.5 781030.2 1381.1
R6 11 34 5 11.6 93 15 54.0 93.3 29.7 29.05 5.9 1.6 2 3133108.5 781036.2 1380.8
R8 15 9 3 15.2 96 50 52.8 96.8 29.8 28.773 7.8 0.6 2 3133137.3 781044.0 1379.8
R10 18 54 40 18.9 100 36 28.8 100.6 30.1 28.473 9.8 0.6 2 3133165.8 781053.7 1379.9
0+005 0 0 0 0.0 81 41 49.5 81.7 24.5 24.514 0.0 1.9 2 3133190.3 781053.7 1381.1
R2 4 23 56 4.4 86 5 45.6 86.1 24.7 24.654 1.9 1.7 2 3133214.9 781055.6 1381.0
R4 8 50 4 8.8 90 31 51.6 90.5 24.9 24.651 3.8 0.6 2 3133239.6 781059.5 1379.9
R6 13 5 38 13.1 94 47 27.6 94.8 25.5 24.85 5.8 0.6 2 3133264.4 781065.2 1379.9
R8 17 27 37 17.5 99 9 25.2 99.2 26.0 24.847 7.8 0.6 2 3133289.3 781073.1 1379.9
R10 21 26 25 21.4 103 8 13.2 103.1 26.5 24.7 9.7 0.6 2 3133314.0 781082.8 1379.8
0+010 0 0 0 0.0 81 41 49.5 81.7 14.6 14.573 0.0 1.1 2 3133328.6 781082.8 1380.3

45
L2 7 49 31 7.8 73 52 19.2 73.9 14.3 14.133 1.9 1.0 2 3133342.7 781084.7 1380.3
L4 16 0 16 16.0 65 41 34.8 65.7 14.1 13.552 3.9 1.0 2 3133356.2 781088.6 1380.3
L6 24 55 47 24.9 56 46 1.2 56.8 14.3 12.992 6.0 1.0 2 3133369.2 781094.6 1380.3
L8 33 10 54 33.2 48 30 54.0 48.5 14.5 12.147 7.9 1.0 2 3133381.4 781102.6 1380.3

L10 41 14 31 41.2 40 27 18.0 40.5 14.9 11.169 9.8 1.0 2 3133392.5 781112.4 1380.2
R2 8 17 39 8.3 89 59 27.6 90.0 14.5 14.315 2.1 0.6 2 3133406.9 781114.5 1379.8
R4 16 4 48 16.1 97 46 37.2 97.8 14.5 13.927 4.0 0.6 2 3133420.8 781118.5 1379.8
R6 24 3 13 24.1 105 45 3.6 105.8 14.9 13.63 6.1 0.6 2 3133434.4 781124.5 1379.8
R8 31 5 10 31.1 112 46 58.8 112.8 15.3 13.096 7.9 0.6 2 3133447.5 781132.4 1379.8
R10 81 41 49.5 81.7 0 0.0 3133447.5 781132.4 1379.3
0+015 0 0 37 0.0 81 41 49.5 81.7 9.6 9.62 0.0 0.7 2 3133457.1 781132.4 1379.9
L2 11 32 59 11.5 81 41 49.5 70.1 9.3 9.1587 1.9 0.6 2 3133466.3 781134.3 1379.8
L4 0.0 81 41 49.5 81.7 0 0.0 3133466.3 781134.3 1379.3
L6 0.0 81 41 49.5 81.7 0 0.0 3133466.3 781134.3 1379.3
L8 0.0 81 41 49.5 81.7 0 0.0 3133466.3 781134.3 1379.3
L10 0.0 81 41 49.5 81.7 0 0.0 3133466.3 781134.3 1379.3
R2 12 16 38 12.3 93 58 26.4 94.0 9.9 9.7049 2.1 0.6 2 3133476.0 781136.4 1379.9
R4 22 41 14 22.7 104 23 2.4 104.4 10.6 9.8204 4.1 0.6 2 3133485.8 781140.5 1379.8
R6 31 16 56 31.3 112 58 44.4 113.0 11.8 10.121 6.1 0.6 2 3133495.9 781146.7 1379.9
R8 38 25 5 38.4 120 6 54.0 120.1 13.1 10.281 8.2 0.3 2 3133506.2 781154.8 1379.6
R10 0.0 81 41 49.5 81.7 0 0.0 2 3133506.2 781154.8 1379.3
0+020 0 0 59 0.0 81 41 49.5 81.7 4.9 4.944 0.0 0.6 2 3133511.2 781154.8 1379.8 BC1
L2 22 31 54 22.5 59 9 54.0 59.2 4.8 4.465 1.9 0.7 2 3133515.6 781156.7 1379.9

46
L4 43 36 22 43.6 38 5 27.6 38.1 5.3 3.824 3.6 0.7 2 3133519.5 781160.3 1380.0
L6 60 5 59 60.1 21 35 49.2 21.6 6.6 3.2761 5.7 0.5 2 3133522.7 781166.0 1379.8
L8 72 36 3 72.6 9 5 45.6 9.1 8.0 2.3916 7.6 0.7 2 3133525.1 781173.7 1379.9
L10 79 18 52 79.3 2 22 58.8 2.4 9.7 1.8056 9.6 0.7 2 3133526.9 781183.2 1380.0
R2 19 30 21 19.5 101 12 10.8 101.2 6.0 5.6754 2.0 0.7 2 3133532.6 781185.2 1379.9
R4 28 54 27 28.9 110 36 18.0 110.6 8.2 7.1415 3.9 0.7 2 3133539.7 781189.2 1379.9
R6 34 17 51 34.3 115 59 42.0 116.0 10.3 8.4992 5.8 0.8 2 3133548.2 781195.0 1380.0
R8 37 41 49 37.7 119 23 38.4 119.4 12.2 9.6525 7.5 0.6 2 3133557.9 781202.4 1379.9
R10 41 49 50 41.8 123 31 49.5 123.5 14.3 10.657 9.5 0.2 2 3133568.6 781212.0 1379.5
0+024.6 1 16 53 1.3 82 58 42.5 83.0 4.7 4.6748 0.1 0.1 2 3133573.2 781212.1 1379.4

L2 27 26 53 27.4 55 31 48.0 55.5 4.4 3.9428 2.0 0.1 2 3133577.2 781214.1 1379.3
L4 50 55 53 50.9 4 35 56.4 4.6 5.2 3.3006 4.1 0.1 2 3133580.5 781218.2 1379.4
L6 62 36 41 62.6 301 59 16.8 302.0 6.2 2.8572 5.5 0.1 2 3133583.3 781223.7 1379.3
L8 73 9 28 73.2 228 49 48.0 228.8 7.8 2.2724 7.5 0.1 2 3133585.6 781231.2 1379.3
L10 81 47 20 81.8 147 2 27.6 147.0 9.6 1.3664 9.5 0.1 2 3133587.0 781240.7 1379.3
R2 23 0 45 23.0 105 59 27.6 106.0 5.5 5.1 2.2 0.1 2 3133592.1 781242.9 1379.3
R4 35 0 24 35.0 117 59 6.0 118.0 7.1 5.7991 4.1 0.1 2 3133597.9 781246.9 1379.3
R6 40 53 41 40.9 123 52 22.8 123.9 9.0 6.8176 5.9 0.1 2 3133604.7 781252.8 1379.3
R8 45 56 9 45.9 128 54 50.4 128.9 10.7 7.4324 7.7 0.0 2 3133612.1 781260.5 1379.3
R10 48 15 12 48.3 131 13 51.6 131.2 12.7 8.4881 9.5 0.1 2 3133620.6 781270.0 1379.3
IP2 1.454 0+025 15 18 59 15.3 97 0 48.5 97.0 16.1 15.514 4.2 1.8 2 3133636.1 781274.3 1381.0 IP1
L2 4 21 18 4.4 92 39 28.8 92.7 16.4 16.307 1.2 1.7 2 3133652.4 781275.5 1381.0
L4 11 30 55 11.5 85 29 52.8 85.5 17.1 16.731 3.4 1.7 2 3133669.2 781278.9 1381.0

47
L6 17 35 1 17.6 79 25 40.8 79.4 17.9 17.019 5.4 1.7 2 3133686.2 781284.3 1381.0
L8 23 8 43 23.1 73 52 4.8 73.9 17.8 16.4 7.0 1.7 2 3133702.6 781291.3 1381.0
L10 27 52 50 27.9 69 7 55.2 69.1 18.8 16.65 8.8 1.7 2 3133719.2 781300.1 1381.0
R2 9 47 31 9.8 106 48 18.0 106.8 20.0 19.754 3.4 1.7 2 3133739.0 781303.5 1381.0
R4 17 22 41 17.4 114 23 27.6 114.4 16.1 15.341 4.8 1.7 2 3133754.3 781308.3 1381.0
R6 24 26 18 24.4 121 27 3.6 121.5 16.3 14.816 6.7 1.7 2 3133769.1 781315.1 1381.0
R8 31 0 56 31.0 128 1 44.4 128.0 17.3 14.833 8.9 1.7 2 3133784.0 781324.0 1381.0
R10 0.0 97 0 57.6 97.0 0 0.0 2 3133784.0 781324.0 1379.3
IP2 1.454 0+029.3 2 31 35 2.5 84 13 24.5 84.2 15.6 15.535 0.7 1.8 2 3133799.5 781324.7 1381.1
L2 4 32 22 4.5 79 41 2.4 79.7 15.9 15.86 1.3 1.7 2 3133815.4 781325.9 1381.0
L4 11 42 4 11.7 81 41 49.5 72.5 16.6 16.259 3.4 1.7 2 3133831.6 781329.3 1380.9
L6 17 55 54 17.9 81 41 49.5 66.3 17.3 16.468 5.3 1.7 2 3133848.1 781334.6 1381.0
L8 23 38 19 23.6 81 41 49.5 60.6 18.5 16.927 7.4 1.7 2 3133865.0 781342.0 1381.0
L10 27 24 8 27.4 81 41 49.5 56.8 18.5 16.404 8.5 1.7 2 3133881.4 781350.5 1381.0
R2 10 8 36 10.1 91 50 25.5 91.8 18.5 18.188 3.3 1.7 2 3133899.6 781353.8 1381.0
R4 18 10 17 18.2 81 41 49.5 99.9 15.5 14.742 4.8 1.7 2 3133914.4 781358.6 1381.0

R6 25 31 57 25.5 81 41 49.5 107.2 16.0 14.435 6.9 1.7 2 3133928.8 781365.5 1381.0
R8 31 59 13 32.0 81 41 49.5 113.7 16.6 14.087 8.8 1.7 2 3133942.9 781374.3 1381.0
R10 0.0 81 41 49.5 81.7 0 0.0 2 3133942.9 781374.3 1379.3
IP2 1.454 0+030 0 0 15 0.0 142 20 49.5 142.3 8.7 8.722 0.0 1.3 2 3133951.6 781374.3 1380.6 EC1
L2 13 32 45 13.5 128 42 4.7 128.7 8.8 8.562 2.1 1.3 2 3133960.2 781376.4 1380.6
L4 25 42 36 25.7 116 32 13.6 116.5 9.4 8.5082 4.1 1.4 2 3133968.7 781380.5 1380.7
L6 36 0 59 36.0 106 13 50.5 106.2 10.5 8.5107 6.2 1.3 2 3133977.2 781386.7 1380.6

48
L8 44 2 50 44.0 98 11 59.6 98.2 11.9 8.5727 8.3 0.3 2 3133985.8 781395.0 1379.6
L10 50 27 11 50.5 91 47 38.5 91.8 13.8 8.8012 10.7 0.7 2 3133994.6 781405.6 1380.0
R2 15 23 52 15.4 157 44 41.6 157.7 8.9 8.5767 2.4 1.3 2 3134003.1 781408.0 1380.6
R4 23 42 58 23.7 166 3 47.5 166.1 9.5 8.6794 3.8 1.3 2 3134011.8 781411.8 1380.6
R6 0.0 142 20 49.5 142.3 0 0.0 2 3134011.8 781411.8 1379.3
R8 0.0 142 20 49.5 142.3 0 0.0 2 3134011.8 781411.8 1379.3
R10 0.0 142 20 49.5 142.3 0 0.0 2 3134011.8 781411.8 1379.3
Ip2 1.454 0+034.09 0 0 15 0.0 142 20 49.5 142.3 5.7 5.664 0.0 1.1 2 3134017.5 781411.8 1380.4
L2 18 25 11 18.4 123 55 38.6 123.9 6.2 5.8757 2.0 0.7 2 3134023.4 781413.8 1380.0
L4 33 26 39 33.4 108 54 10.4 108.9 7.4 6.1547 4.1 0.7 2 3134029.5 781417.8 1379.9
L6 43 16 16 43.3 99 4 33.6 99.1 8.9 6.5145 6.1 0.6 2 3134036.0 781424.0 1379.9
L8 48 53 51 48.9 93 26 58.6 93.4 10.6 6.9541 8.0 0.6 2 3134043.0 781431.9 1379.9
L10 54 6 54 54.1 88 13 55.6 88.2 12.5 7.3229 10.1 0.7 2 3134050.3 781442.0 1380.0
R2 21 29 41 21.5 163 50 30.5 163.8 5.6 5.2077 2.1 1.4 2 3134055.5 781444.1 1380.7
R4 40 1 52 40.0 182 22 41.5 222.4 6.2 4.7465 4.0 1.4 2 3134060.3 781448.1 1380.7
R6 0.0 142 20 49.5 142.3 0 0.0 2 3134060.3 781448.1 1379.3
R8 0.0 142 20 49.5 142.3 0 0.0 2 3134060.3 781448.1 1379.3
R10 0.0 142 20 49.5 142.3 0 0.0 2 3134060.3 781448.1 1379.3
IP2 1.454 0+035 7 23 20 7.4 149 50 49.5 149.8 6.1 6.0345 0.8 -0.6 2 3134066.3 781448.9 1378.7 BC2
L2 22 24 37 22.4 127 25 46.2 127.4 7.3 6.7515 2.8 -0.7 2 3134073.0 781451.7 1378.5
L4 32 22 23 32.4 117 28 0.1 117.5 8.9 7.4838 4.7 -0.7 2 3134080.5 781456.4 1378.6
L6 39 3 50 39.1 110 46 33.2 110.8 10.6 8.2093 6.7 -0.7 2 3134088.7 781463.1 1378.6

L8 38 54 32 38.9 110 55 51.2 110.9 14.2 11.041 8.9 -0.6 2 3134099.8 781472.0 1378.6

49
L10 0.0 149 50 23.3 149.8 0 0.0 2 3134099.8 781472.0 1379.2
R2 12 29 2 12.5 162 19 25.3 162.3 5.4 5.2772 1.2 -0.7 2 3134105.0 781473.1 1378.5
R4 33 32 36 33.5 183 22 59.2 183.4 5.6 4.6641 3.1 -0.7 2 3134109.7 781476.2 1378.5
R6 0.0 149 50 23.3 149.8 0 0.0 2 3134109.7 781476.2 1379.2
R8 0.0 149 50 23.3 149.8 0 0.0 2 3134109.7 781476.2 1379.2
R10 0.0 149 50 23.3 149.8 0 0.0 2 3134109.7 781476.2 1379.2
IP2 1.454 0+036.926 O 0 6 0.0 142 20 49.6 142.3 8.7 8.699 0.0 -0.5 2 3134118.4 781476.2 1378.8
L2 11 49 40 11.8 130 31 9.5 130.5 9.3 9.1329 1.9 -0.7 2 3134127.5 781478.1 1378.6
L4 19 47 18 19.8 122 33 31.7 122.6 11.2 10.507 3.8 -0.5 2 3134138.1 781481.9 1378.7
L6 29 23 14 29.4 112 57 35.6 113.0 14.2 12.365 7.0 -0.8 2 3134150.4 781488.9 1378.4
L8 31 3 0 31.1 111 17 49.6 111.3 16.3 14.002 8.4 -0.9 2 3134164.4 781497.3 1378.3
L10 0.0 142 20 49.6 142.3 0 0.0 2 3134164.4 781497.3 1379.2
R2 14 14 23 14.2 156 35 12.5 156.6 8.0 7.7358 2.0 -0.7 2 3134172.2 781499.3 1378.6
R4 25 44 18 25.7 168 5 7.4 168.1 8.1 7.2838 3.5 -0.7 2 3134179.4 781502.8 1378.6
R6 0.0 142 20 49.6 142.3 0 0.0 2 3134179.4 781502.8 1379.2
R8 0.0 142 20 49.6 142.3 0 0.0 2 3134179.4 781502.8 1379.2
R10 0.0 142 20 49.6 142.3 0 0.0 2 3134179.4 781502.8 1379.2
IP3 1.364 0+039.943 4 37 26 4.6 79 56 15.5 79.9 25.1 25.037 2.0 2.4 2 3134204.5 781504.8 1381.5
L2 8 43 49 8.7 71 12 26.5 71.2 24.2 23.929 3.7 2.3 2 3134228.4 781508.5 1381.4
L4 13 20 38 13.3 66 35 37.5 66.6 24.0 23.315 5.5 2.9 2 3134251.7 781514.0 1382.0
L6 20 29 59 20.5 59 26 16.5 59.4 23.2 21.73 8.1 2.4 2 3134273.4 781522.1 1381.5
L8 25 54 39 25.9 54 1 36.5 54.0 23.2 20.829 10.1 2.5 2 3134294.3 781532.3 1381.6
L10 0.0 79 56 15.5 79.9 0 0.0 2 3134294.3 781532.3 1379.1
R2 3 47 45 3.8 83 44 0.5 83.7 27.4 27.298 1.8 2.3 2 3134321.6 781534.1 1381.4

50
R4 0.0 79 56 15.5 79.9 0 0.0 2 3134321.6 781534.1 1379.1
R6 0.0 79 56 15.5 79.9 0 0.0 2 3134321.6 781534.1 1379.1
R8 0.0 79 56 15.5 79.9 0 0.0 2 3134321.6 781534.1 1379.1
R10 0.0 79 56 15.5 79.9 0 0.0 2 3134321.6 781534.1 1379.1

IP3(P14) 1.364 0+042.004 0 0 10 0.0 75 18 49.5 75.3 15.6 15.578 0.0 0.9 2 3134337.2 781534.1 1380.0
L2 7 24 6 7.4 67 54 40.7 67.9 14.6 14.453 1.9 0.9 2 3134351.6 781536.0 1380.0
L4 17 15 39 17.3 58 3 7.9 58.1 14.2 13.532 4.2 0.9 2 3134365.1 781540.2 1380.0
L6 25 49 2 25.8 49 29 44.9 49.5 14.0 12.595 6.1 1.3 2 3134377.7 781546.3 1380.4
L8 0.0 75 18 49.5 75.3 0 0.0 2 3134377.7 781546.3 1379.1
L10 0.0 75 18 49.5 75.3 0 0.0 2 3134377.7 781546.3 1379.1
R2 8 3 14 8.1 83 22 0.8 83.4 16.1 15.936 2.3 0.8 2 3134393.7 781548.5 1379.9
R4 14 37 56 14.6 89 56 42.7 89.9 17.6 17.037 4.4 0.4 2 3134410.7 781553.0 1379.5
R6 17 43 7 17.7 93 1 53.8 93.0 19.4 18.491 5.9 0.4 2 3134429.2 781558.9 1379.5
R8 0.0 75 18 49.5 75.3 0 0.0 2 3134429.2 781558.9 1379.1
R10 0.0 75 18 49.5 75.3 0 0.0 2 3134429.2 781558.9 1379.1
IP3 1.364 0+047.882 0 0 10 0.0 75 18 49.5 75.3 10.6 10.584 0.0 0.5 2 3134439.8 781558.9 1379.6
L2 11 54 4 11.9 63 24 42.8 63.4 10.8 10.594 2.2 1.3 2 3134450.4 781561.1 1380.4
L4 26 6 16 26.1 49 12 31.0 49.2 9.9 8.8614 4.3 0.9 2 3134459.2 781565.4 1380.0
L6 36 25 46 36.4 38 53 1.0 38.9 10.1 8.1304 6.0 1.0 2 3134467.4 781571.4 1380.1
L8 0.0 75 18 49.5 75.3 0 0.0 2 3134467.4 781571.4 1379.1
L10 0.0 75 18 49.5 75.3 0 0.0 2 3134467.4 781571.4 1379.1
R2 9 57 15 10.0 85 16 1.9 85.3 11.4 11.246 2.0 0.3 2 3134478.6 781573.4 1379.4
R4 22 31 27 22.5 97 50 13.9 97.8 12.4 11.444 4.7 0.4 2 3134490.1 781578.2 1379.5

51
R6 0.0 75 18 49.5 75.3 0 0.0 2 3134490.1 781578.2 1379.1
R8 0.0 75 18 49.5 75.3 0 0.0 2 3134490.1 781578.2 1379.1
R10 0.0 75 18 49.5 75.3 0 0.0 2 3134490.1 781578.2 1379.1
IP3 1.364 0+052.882 0 0 50 0.0 75 18 49.5 75.3 5.6 5.59 0.0 0.5 2 3134495.6 781578.2 1379.6
L2 25 11 57 25.2 50 6 49.7 50.1 5.5 4.9431 2.3 0.4 2 3134500.6 781580.5 1379.5
L4 43 10 55 43.2 32 7 52.0 32.1 6.6 4.8039 4.5 0.9 2 3134505.4 781585.0 1380.0
L6 0.0 75 18 49.5 75.3 0 0.0 2 3134505.4 781585.0 1379.1
L8 0.0 75 18 49.5 75.3 0 0.0 2 3134505.4 781585.0 1379.1
L10 0.0 75 18 49.5 75.3 0 0.0 2 3134505.4 781585.0 1379.1
R2 18 43 45 18.7 94 2 31.9 94.0 6.8 6.4702 2.2 0.4 2 3134511.9 781587.2 1379.5

R4 37 53 51 37.9 113 12 39.6 113.2 7.9 6.2316 4.9 -0.3 2 3134518.1 781592.0 1378.8
R6 0.0 75 18 49.5 75.3 0 0.0 2 3134518.1 781592.0 1379.1
R8 0.0 75 18 49.5 75.3 0 0.0 2 3134518.1 781592.0 1379.1
R10 0.0 75 18 49.5 75.3 0 0.0 2 3134518.1 781592.0 1379.1
IP3 0+057.882 0 0 0 0.0 75 18 49.5 75.3 5.1 5.051 0.0 0.3 2 3134523.1 781592.0 1379.4
L2 19 5 40 19.1 56 13 7.0 56.2 5.2 4.9583 1.7 0.3 2 3134528.1 781593.8 1379.4
L4 33 11 32 33.2 42 7 14.9 42.1 5.8 4.8704 3.2 0.5 2 3134533.0 781596.9 1379.6
L6 0.0 75 18 49.5 75.3 0 0.0 2 3134533.0 781596.9 1379.1
L8 0.0 75 18 49.5 75.3 0 0.0 2 3134533.0 781596.9 1379.1
L10 0.0 75 18 49.5 75.3 0 0.0 2 3134533.0 781596.9 1379.1
R2 19 49 40 19.8 95 8 26.9 95.1 5.4 5.0667 1.8 0.0 2 3134538.0 781598.8 1379.1
R4 33 48 5 33.8 109 6 50.4 109.1 6.1 5.0914 3.4 0.2 2 3134543.1 781602.2 1379.3
R6 49 39 51 49.7 124 58 37.2 125.0 7.6 4.8946 5.8 -0.3 2 3134548.0 781607.9 1378.8

52
R8 0.0 75 18 49.5 75.3 0 0.0 2 3134548.0 781607.9 1379.1
R10 0.0 75 18 49.5 75.3 0 0.0 2 3134548.0 781607.9 1379.1
IP4 1.374 0+062.882 1 53 54 1.9 143 43 4.8 143.7 13.4 13.378 0.4 0.1 2 3134561.4 781608.4 1379.1
L2 8 6 36 8.1 135 36 28.8 135.6 12.0 11.861 1.7 0.0 2 3134573.3 781610.1 1379.1
L4 16 28 13 16.5 127 14 52.8 127.2 11.4 10.892 3.2 0.3 2 3134584.2 781613.3 1379.4
L6 0.0 143 43 4.8 143.7 0 0.0 2 3134584.2 781613.3 1379.1
L8 0.0 143 43 4.8 143.7 0 0.0 2 3134584.2 781613.3 1379.1
L10 0.0 143 43 4.8 143.7 0 0.0 2 3134584.2 781613.3 1379.1
R2 4 57 12 5.0 148 40 15.6 148.7 15.1 15.084 1.3 -0.5 2 3134599.2 781614.6 1378.6
R4 11 33 28 11.6 155 16 33.6 155.3 17.2 16.872 3.5 -0.4 2 3134616.1 781618.1 1378.7
R6 0.0 143 43 4.8 143.7 0 0.0 2 3134616.1 781618.1 1379.1
R8 0.0 143 43 4.8 143.7 0 0.0 2 3134616.1 781618.1 1379.1
R10 0.0 143 43 4.8 143.7 0 0.0 2 3134616.1 781618.1 1379.1
0+066.78 3 32 47 3.5 145 22 8.4 145.4 12.9 12.848 0.8 0.0 2 3134629.0 781618.9 1379.1
L2 12 26 50 12.4 132 55 19.2 132.9 12.1 11.788 2.6 0.3 2 3134640.8 781621.5 1379.4
L4 21 27 26 21.5 123 54 43.2 123.9 12.5 11.67 4.6 0.4 2 3134652.4 781626.0 1379.5

L6 0.0 145 22 8.4 145.4 0 0.0 2 3134652.4 781626.0 1379.1


L8 0.0 145 22 8.4 145.4 0 0.0 2 3134652.4 781626.0 1379.1
L10 0.0 145 22 8.4 145.4 0 0.0 2 3134652.4 781626.0 1379.1
R2 5 42 51 5.7 151 4 58.8 151.1 13.6 13.562 1.4 -0.1 2 3134666.0 781627.4 1379.0
R4 11 51 41 11.9 157 13 48.0 157.2 15.2 14.885 3.1 -0.5 2 3134680.9 781630.5 1378.6
R6 0.0 145 22 8.4 145.4 0 0.0 2 3134680.9 781630.5 1379.1
R8 0.0 145 22 8.4 145.4 0 0.0 2 3134680.9 781630.5 1379.1

53
R10 0.0 145 22 8.4 145.4 0 0.0 2 3134680.9 781630.5 1379.1
IP4 1.374 0+071.718 1 5 20 1.1 142 54 43.2 142.9 8.7 8.6814 0.2 0.1 2 3134689.6 781630.7 1379.2
L2 12 16 20 12.3 130 38 20.4 130.6 8.7 8.4856 1.8 0.4 2 3134698.0 781632.5 1379.5
L4 24 46 26 24.8 118 8 13.2 118.1 9.2 8.366 3.9 0.3 2 3134706.4 781636.4 1379.4
L6 0.0 142 54 39.6 142.9 0 0.0 2 3134706.4 781636.4 1379.1
L8 0.0 142 54 39.6 142.9 0 0.0 2 3134706.4 781636.4 1379.1
L10 0.0 142 54 39.6 142.9 9.5 9.451 0.0 -0.2 2 3134715.9 781636.4 1378.9
R2 14 8 42 14.1 157 3 21.6 157.1 10.7 10.365 2.6 -0.1 2 3134726.2 781639.0 1379.0
R4 23 35 51 23.6 166 30 32.4 166.5 12.6 11.534 5.0 -0.5 2 3134737.8 781644.0 1378.6
R6 30 55 47 30.9 173 50 27.6 173.8 0 0.0 2 3134737.8 781644.0 1379.1
R8 0.0 142 54 43.2 142.9 0 0.0 2 3134737.8 781644.0 1379.1
R10 0.0 142 54 43.2 142.9 0 0.0 2 3134737.8 781644.0 1379.1
IP4 1.347 0+074.412 0 1 19 0.0 141 50 42.0 141.8 8.1 8.104 0.0 -0.1 2 3134745.9 781644.0 1379.0
L2 13 46 19 13.8 128 4 19.2 128.1 8.2 7.9827 2.0 0.0 2 3134753.8 781646.0 1379.1
L4 26 28 21 26.5 115 22 19.2 115.4 8.8 7.8549 3.9 0.3 2 3134761.7 781649.9 1379.4
L6 0.0 141 50 38.4 141.8 0 0.0 2 3134761.7 781649.9 1379.1
L8 0.0 141 50 38.4 141.8 0 0.0 2 3134761.7 781649.9 1379.1
L10 0.0 141 50 38.4 141.8 0 0.0 2 3134761.7 781649.9 1379.1
R2 30 53 47 30.9 172 44 24.0 172.7 8.7 7.4843 4.5 -0.2 2 3134769.2 781654.4 1378.9
R4 26 2 10 26.0 167 52 48.0 167.9 9.6 8.6635 4.2 -0.3 2 3134777.8 781658.6 1378.8
R6 34 52 31 34.9 176 43 8.4 176.7 11.8 9.6553 6.7 -0.5 2 3134787.5 781665.4 1378.6
R8 40 33 22 40.6 182 24 0.0 182.4 13.5 10.231 8.8 -0.5 2 3134797.7 781674.1 1378.6

R10 0.0 141 50 38.4 141.8 0 0.0 2 3134797.7 781674.1 1379.1

54
IP4 1.000 0+076.648 0 0 0 0.0 141 50 38.4 141.8 5.1 5.081 0.0 0.2 2 3134802.8 781674.1 1379.3
L2 26 56 42 26.9 141 49 23.5 114.9 5.3 4.7229 2.4 0.2 2 3134807.5 781676.5 1379.3
L4 0.0 141 49 23.5 141.8 0 0.0 2 3134807.5 781676.5 1379.1
L6 0.0 141 49 23.5 141.8 0 0.0 2 3134807.5 781676.5 1379.1
L8 0.0 141 49 23.5 141.8 0 0.0 2 3134807.5 781676.5 1379.1
L10 0.0 141 49 23.5 141.8 0 0.0 2 3134807.5 781676.5 1379.1
R2 27 2 42 27.0 168 53 20.4 168.9 6.4 5.6841 2.9 -0.2 2 3134813.2 781679.4 1378.9
R4 42 53 35 42.9 184 44 13.2 184.7 8.1 5.9306 5.5 -0.2 2 3134819.1 781684.9 1378.9
R6 309 21 29 309.4 91 12 7.6 91.2 10.1 6.3936 -7.8 -0.5 2 3134825.5 781677.1 1378.6
R8 304 14 54 304.2 86 5 32.3 86.1 12.0 6.7511 -9.9 -0.5 2 3134832.3 781667.2 1378.6
-
R10 296 34 54 296.6 78 25 32.5 78.4 14.1 6.321 12.6 -0.8 2 3134838.6 781654.6 1378.3
IP4 0+079.68 1 3 35 1.1 142 52 58.8 142.9 3.7 3.6734 0.1 0.1 2 3134842.3 781654.6 1379.2
L2 30 10 22 30.2 112 42 36.0 112.7 4.0 3.4935 2.0 0.3 2 3134845.8 781656.7 1379.4
L4 0.0 142 52 36.0 142.9 0 0.0 2 3134845.8 781656.7 1379.1
L6 0.0 142 52 36.0 142.9 0 0.0 2 3134845.8 781656.7 1379.1
L8 0.0 142 52 36.0 142.9 0 0.0 2 3134845.8 781656.7 1379.1
L10 0.0 142 52 36.0 142.9 0 0.0 2 3134845.8 781656.7 1379.1
R2 27 28 39 27.5 170 21 39.6 170.4 4.4 3.8903 2.0 0.0 2 3134849.7 781658.7 1379.1
R4 49 56 21 49.9 192 49 19.2 192.8 5.8 3.7149 4.4 -0.2 2 3134853.4 781663.1 1378.9
R6 58 37 55 58.6 201 30 54.0 201.5 7.8 4.0789 6.7 -0.5 2 3134857.5 781669.8 1378.6
R8 64 51 10 64.9 207 44 9.6 207.7 10.0 4.2673 9.1 -0.5 2 3134861.7 781678.9 1378.6
R10 67 53 17 67.9 210 46 15.6 210.8 12.3 4.639 11.4 -0.5 2 3134866.4 781690.3 1378.6
IP4 0+079.772 232 8 35 232.1 13 57 57.6 14.0 2.0 -1.216 -1.6 0.0 2 3134865.2 781688.8 1379.1
L2 163 25 47 163.4 149 27 36.0 -149.5 1.5 -1.469 0.4 0.0 2 3134863.7 781689.2 1379.1
L4 0.0 13 57 57.6 14.0 0 0.0 2 3134863.7 781689.2 1379.1
L6 0.0 13 57 57.6 14.0 0 0.0 2 3134863.7 781689.2 1379.1
L8 0.0 13 57 57.6 14.0 0 0.0 2 3134863.7 781689.2 1379.1

55
L10 0.0 13 57 57.6 14.0 0 0.0 2 3134863.7 781689.2 1379.1

R2 261 59 21 262.0 275 57 18.0 276.0 3.6 -0.5 -3.6 -0.2 2 3134863.2 781685.6 1378.9
R4 278 8 3 278.1 292 6 0.0 292.1 6.6 0.9375 -6.6 -0.2 2 3134864.1 781679.1 1378.9
R6 277 43 56 277.7 291 41 52.8 291.7 8.8 1.1873 -8.7 -0.5 2 3134865.3 781670.3 1378.6
-
R8 279 6 57 279.1 293 4 48.0 293.1 11.4 1.805 11.2 -0.5 2 3134867.1 781659.1 1378.6
-
R10 279 51 7 279.9 293 49 4.8 293.8 11.8 2.0252 11.7 -0.7 2 3134869.1 781647.4 1378.4
IP4 0+084.489 216 10 30 216.2 357 59 52.8 358.0 5.1 -4.079 -3.0 -0.1 2 3134865.1 781644.4 1379.0
L2 109 34 45 109.6 248 25 8.4 248.4 5.1 -1.697 4.8 -0.1 2 3134863.4 781649.2 1379.0
L4 164 6 36 164.1 193 53 16.8 193.9 6.2 -5.999 1.7 -0.3 2 3134857.4 781650.9 1378.8
L6 0.0 357 59 52.8 358.0 0 0.0 2 3134857.4 781650.9 1379.1
L8 0.0 357 59 52.8 358.0 0 0.0 2 3134857.4 781650.9 1379.1
L10 0.0 357 59 52.8 358.0 0 0.0 2 3134857.4 781650.9 1379.1
R2 235 29 37 235.5 233 29 31.2 233.5 5.9 -3.358 -4.9 -0.3 2 3134854.0 781646.0 1378.8
R4 253 23 10 253.4 251 23 2.4 251.4 8.6 -2.457 -8.2 -0.5 2 3134851.6 781637.8 1378.6
-
R6 257 28 51 257.5 255 28 44.4 255.5 10.8 -2.344 10.6 -0.5 2 3134849.2 781627.2 1378.6
-
R8 260 19 9 260.3 258 19 1.2 258.3 13.1 -2.21 13.0 -0.4 2 3134847.0 781614.3 1378.7
R10 0.0 357 59 52.8 358.0 0 0.0 2 3134847.0 781614.3 1379.1
IP5 1.420 0+084.63 356 22 9 356.4 138 11 31.2 138.2 12.1 12.12 -0.8 0.4 2 3134859.1 781613.5 1379.5
L2 6 6 37 6.1 132 4 55.2 132.1 13.6 13.553 1.5 0.7 2 3134872.7 781615.0 1380.2
L4 0.0 138 11 31.2 138.2 0 0.0 2 3134872.7 781615.0 1379.4
L6 0.0 138 11 31.2 138.2 0 0.0 2 3134872.7 781615.0 1379.4
L8 0.0 138 11 31.2 138.2 0 0.0 2 3134872.7 781615.0 1379.4
L10 0.0 138 11 31.2 138.2 0 0.0 2 3134872.7 781615.0 1379.4
R2 344 48 54 344.8 123 0 25.2 123.0 11.2 10.81 -2.9 0.3 2 3134883.5 781612.0 1379.7

56
R4 328 27 31 328.5 106 39 3.6 106.7 11.2 9.5658 -5.9 0.3 2 3134893.0 781606.2 1379.8
R6 0.0 138 11 31.2 138.2 0 0.0 2 3134893.0 781606.2 1379.4
R8 0.0 138 11 31.2 138.2 0 0.0 2 3134893.0 781606.2 1379.4
R10 0.0 138 11 31.2 138.2 0 0.0 2 3134893.0 781606.2 1379.4

57
CHAPTER V
BRIDGE SURVEY
5.1 General
Bridges are the structures that are constructed with the purpose of connecting two places
separated by deep valleys or gorges or rivers and streams. Bridges are usually the cross
drainage and hence a part of roads making them shorter and hence economical. For places,
where the ground is uneven and undulated and where the number of rivers is large, bridges
are the most economic and efficient way. Triangulation method was applied for selecting
the shortest distance or length for the bridge.

5.2 Objectives
There are various objectives for Bridge site survey. Some of them are:

1. To select the possible bridge site and axis for the construction of bridge.

2. To collect the preliminary data i.e., normal water flow level, high flood level.

3. To study about the geological features of the ground.

4. To carry out surveying for topographical mapping, longitudinal and cross sections at
both the upstream and downstream side of the river.

5.3 Brief Description of the site


The bridge site survey was done in Ghatey Khola which was at altitude of 1600m above sea
level. The site is surrounded with steep hill, which is covered with densely planted shrubs.
The width of stream is not so big but high flood level covers large area. Water scoured
marks on the sideshow that the highest flood level. The bridge site was surrounded by trees
and bushes. The ground was damp and swampy. The soil was gravelly and clayey
somewhere. The hill slopes on both sides were not very steep and are thus geologically
stable. There is not much water to be found on the bridge site. The only water is collected
from rain and other sources.

5.4 Technical Specifications


The following norms were followed while performing the bridge site survey:
Control point fixing as well as determining the length of the bridge axis had to be done by
the method of triangulation. While forming triangles, proper care had to be taken such that

58
the triangles were well conditioned, i.e., none of the angles of the triangle were greater than
120ºor less than 30º.

a) The triangulation angle had to be measured on two sets of readings by total station
and the difference between the mean angles of two sets of readings had to be within
a minute.

b) The scale for plotting the topographical map was given to be 1:500.

c) In order to plot the longitudinal section of the river, data had to be taken along the
riverbed up to 80-100 m upstream and at least 30 m downstream.

d) The plot for the longitudinal section along the flow line had to be done in a scale of
1:100 for vertical and 1:1000 for horizontal.

e) For the cross-section profile, data had to be taken at 25 m intervals both upstream
and downstream, and one at the bridge axis. Observation had to cover minimally 20
m beyond the bank of river on either side or 10 m above the high flood level (HFL)
cover line, whichever was minimum.

f) Hydrological survey (determination of the highest flood level, ordinary flood level
and low water level) had to be done using appropriate method. The hydraulic data
thus obtained were to be shown in the plan as well as the cross section of the river.

5.5 Equipment & Accessories

1. Total Station (Triangulation & Detailing)

2. 2 Prism and prism rod

3. 3 Pegs

4. Hammer

5. Tape

6. Board and A4 paper

7. Prism holder

59
5.6 Methodology
5.6.1. Reconnaissance and site selection
As the first step, reconnaissance was done for the entire area where the bridge was to be
located. The site for the proposed bridge was selected at a location that was a continuation
of the straight portion of the existing road.
The following things were considered while selecting the bridge site:

a) The rock outcrops were studied and as they were strong enough to support the bridge
and the dead as well as live loads, the site was found suitable.

b) The slope of the riverbed was gentle at the proposed site. As steep slope means a
greater magnitude of water current, a lot of erosion and wear and tear takes place on
the pillars and the bridge foundation. Hence to avoid that condition, the location of
the bridge was chosen at the place where there was less water current.

c) The high flood level of the river was measured accurately and hence the height of
the bridge above the river was designed taking into consideration the occasional
flooding.

d) The bridge was chosen at such a place that it was very convenient to reach from the
nearby market. Hence its use is predicted to be huge thus providing service to a large
number of the local people.

e) Besides, the stones and coarse aggregates could also be used from local sources
thereby decreasing the transportation cost.

5.6.2 Topographic Survey


For the topographic survey of the site, a total of 2 control stations were selected along the
banks. Thus, a traverse was formed running across the river, covering a distance of almost
100 m upstream and 30m downstream. The method of triangulation was used for the
determination of the bridge axis as well as the traverse legs, which also served as checks on
our work. The triangulation angles were taken of two sets of reading using a theodolite.
Details of the objects around the bridge along with their spot heights were taken from these
control stations by tacheometric method. While transferring the R.L. from the given
benchmark to the control stations, was done by fly levelling. And transformation of the R.L.
from one point to another point across the bridge axis was done by reciprocal levelling. The

60
triangulation legs were measured by two ways taping and all the internal angles were
measured using theodolite. Then SIN Law was used to calculate the lengths of the
remaining legs of the triangle series of the proposed bridge axis.

5.6.3 Longitudinal Section


The L-Section of the river is required to give an idea about the bed slope, nature of the
riverbed, and the variation in the elevations of the different points along the length of the
river. Keeping the instrument at the control (triangulation) stations on the river banks, the
Prism readings were taken at different points along the centre line of the river at an interval
of about 25 m up to a 100 m upstream and 30 m downstream. The R.L.s of the traverse
stations being known previously; the levels of the different points on the river were
calculated.

5.6.4Cross-section
Cross-section of a river at a particular point is the profile of the lateral sides from the
centreline of the river cut transverse to the L-Section at that point. The cross section can be
used to calculate the volume and discharge of water at the particular section if the velocity
at the cross section is known. Cross sections were taken at an interval of about 25 m
extending 100 m upstream and 50 m downstream of the river. Prism readings of points
along a line perpendicular to the flow of river were taken from the stations points and the
elevations of the points were calculated using tacheometric methods. With all the
calculations done and the required data in hand, the cross section was plotted on a graph
paper.

5.6.5 Detailing
Detailing of the entire bridge site was done by tachometric method, the readings being taken
with a Total Station stationed at the different traverse stations. All the data and the
calculations have been tabulated in a systematic way and are attached with this report.

5.8 Conclusions
Economy and durability determine the way how a bridge is designed. The bridge axis
should be designed such that the span length should be minimum and the location is safe.
The bridge axis should not be below the highest flood level. The bridge axis was set
keeping in mind all the requisites that the proper site for the bridge. The result of the
computations of the triangulation gave the axis span of 13.255m. During the selection of the
site all the considerations like geological, socio-economical and topographical were taken
and the best site was selected. The inspection of the area showed that no springs, streams

61
and sewer were discharged into the river up to the 150-m upstream and 75 m downstream of
the axis site. The flow in river was normal and showed no danger of changing its direction
of flow for the design period of the bridge. The X-section was read up to the farthest point
as possible
All the necessary data and calculations are presented in the following pages in this report.

B
13
.2
55
m

N23

C A

Fig5.8a: Bridge Site Triangulation

62
BRIDGE SITE SURVEY

Bridge Site Triangular Measurement Sheet

HORIZONTAL ANGLE

SET (00) SET (90)

INST & SIGHTED Hor. An- Mean H. An- Hor. An- Mean H. An-
HI TO FACE HCR gle gle HCR gle gle Mean Horizontal Angle
L 0º 0'0" 90 º 0'0"
B R 180º 0'4" 256º54'5" 269º59'59" 256 º 54'5"
L 256 º 54'5" 256 º (Exterior)256 º 346 º 54'5"
A C R 76 º 54'8" 54'4" 54'4.5" 166 º 54'4" 256 º 54'5" 256 º 54'5" 256 º 54'4.75"
L 0 º 0'0" 61 º 90 º 0'0"
B R 179º59'59" 23'50" 270 º 0'04" 61 º 23'57"
L 61 º 23'50" 61 º 151º23'57"
A D R 241º23'52" 23'53" 61 º 23'51.5" 331º23'54" 61 º 23'50" 61 º 23'53.9" 61 º 23'52.5"
L 0 º 0'0" 90 º 0'0"
A R 180 º 0'03" 38 º 4'37" 270º0'03" 38 º 4'38"
L 38 º 4'37" 128 º 4'38"
B C R 218 º 4'41" 38 º 4'38" 38 º 4'37.5" 328 º 4'34" 38 º 4'31" 38 º 4'34.5" 38 º 4'36"
L 0 º 0'0" 288 º 90 º 0'0"
A R 180 º 0'4" 37'05" 270 º 0'0" 288 º 37'0"
L 288º37'05" 288 º (Exterior)288 º 18 º 37'0"
B D R 108 º 37'4" 37'0" 37'2.5" 198º36'56" 288º36'56" 288 º 36'58" 288 º 37'0.25"
D L 0 º 0'0" 47 º 47 º 12'27.5" 47º12’27.5”
A R 179º59'48" 12'12"
B L 47 º 12'11" 47 º
R 227º12'32" 12'44"
L 0 º 0'0" 38 º
B R 180 º 0'0" 49'52"
L 38 º 49'52" 38 º
C A R 218º49'52" 49'52" 38º 49'52" 38 º49’52”
55
Permissible error = c√N where, c= 30”
= 30” √3
= 51.96”
From Bridge Triangulation,
For triangle ABD, since within permissible error so correction required is + 14.17” in each
angle and for triangle BAC correction required is – 7.75”.
So corrected angles,
For triangle ABD

S.N. N E Z Remarks

3132582 780587.2 1257.1 BM

1 3132599 780594.3 1259.88 S.A

1 3132582 780587.2 1257.1 BM

2 3132582 780587.2 1257.1 A

1 3132599 780594.3 1259.88 A

1 3132582 780587.2 1258.326 BMA

2 3132602 780589.4 1258.331 RC

3 3132600 780593.2 1259.834 R

4 3132603 780587.4 1259.521 R

5 3132605 780582.8 1261.188 RIG

6 3132605 780582.5 1261.954 RIG

7 3132600 780592 1259.166 LEFT

8 3132592 780592 1259.734 RDR

9 3132595 780596.5 1260.548 RDL

10 3132587 780592.8 1259.326 RDL

11 3132577 780588.7 1257.551 RDL

12 3132579 780585.2 1257.597 RDL

13 3132599 780588.6 1258.561 RC

14 3132597 780587.8 1257.895 RC

65
15 3132594 780586.2 1256.039 RC

‚ABD= 61º224’6.67

‚BAD= 71º23’11.67”

‚BDA= 47º12’41.67”
For triangle BAC

‚BAC=103º5’48”

‚CBA= 38º49’44.25”

‚CAB= 38º4’28.25”
Detailing of Bridge Site Surveying

16 3132592 780584.4 1255.748 RC


17 3132609 780593.1 1260.61 RC
18 3132609 780591.8 1260.91 BC
19 3132607 780594.3 1260.753 BC
20 3132610 780591 1261.701 BC
21 3132605 780595 1261.111 BC
22 3132610 780588.2 1262.067 BC
23 3132608 780583.2 1263.203 R
24 3132603 780591.2 1259.137 RC
25 3132595 780583.5 1255.25 RL
26 3132594 780576 1258.396 T
27 3132593 780589.7 1256.932 RR
28 3132589 780583.7 1253.996 RC
29 3132589 780581.9 1254.12 RC
30 3132603 780584.3 1258.812 T.31
31 3132598 780583 1257.719 T.31
32 3132591 780580.7 1255.545 RR
33 3132608 780594.7 1259.992 BC
34 3132609 780593.3 1260.066 BCEN
35 3132606 780595.9 1260.159 RR
36 3132608 780599.4 1260.409 CR
37 3132610 780596.1 1260.059 CR
38 3132611 780594.2 1260.326 BCEN
39 3132612 780594.3 1259.601 RC
40 3132605 780600.2 1260.448 R.C

66
41 3132604 780600 1260.316 R.C
42 3132610 780597.6 1259.789 H.F
43 3132611 780596.9 1259.79 R.L
44 3132612 780592.8 1259.89 B.C
45 3132615 780598.5 1260.474 R.C
46 3132614 780591.5 1260.182 H.F
47 3132615 780598.5 1260.473 R.L
48 3132617 780594.9 1260.671 H.F
49 3132618 780591.4 1261.029 R.E
50 3132615 780600.8 1260.159 RL
51 3132613 780603.1 1260.534 RE
52 3132618 780606 1261.872 RE
53 3132624 780607.8 1262.762 RE
54 3132630 780597.3 1263.26 RE.R
55 3132632 780608.7 1264.217 R.E
56 3132635 780603 1264.542 R.ER
57 3132613 780593.9 1259.861 CHAMGEP
58 3132613 780593.9 1259.861 CP
59 3132599 780594.3 1259.88 SA
60 3132599 780594.3 1259.604 SA
61 3132617 780598.4 1260.646 RC
62 3132623 780601.5 1261.613 RC

63 3132628 780603.6 1262.404 RC


64 3132624 780598.8 1261.988 RR
65 3132625 780596.5 1262.101 RR
66 3132626 780594.7 1262.845 TR
67 3132624 780601.4 1261.913 RU
68 3132621 780605.6 1261.172 RU
69 3132627 780605.3 1262.01 RU
70 3132631 780597.2 1263.514 RR
71 3132632 780601.8 1263.362 RR
72 3132630 780604.9 1262.426 RC
73 3132630 780608.1 1263.115 RU
74 3132628 780609.8 1263.586 RU
75 3132627 780611.2 1263.722 RU
76 3132634 780610.6 1264.602 RU
77 3132631 780615.9 1264.642 RU
78 3132633 780613 1264.948 RU

67
79 3132636 780605 1263.649 RR
80 3132636 780618 1265.355 RU
81 3132638 780614.7 1265.856 RU
82 3132639 780612.5 1265.163 RU
83 3132641 780609.6 1264.946 RC
84 3132642 780607.3 1265.19 RR
85 3132643 780605.8 1265.232 RR
86 3132641 780618.5 1265.847 RU
87 3132641 780616.3 1266.186 RU
88 3132643 780613.7 1265.813 RU
89 3132643 780611.3 1266.022 RU
90 3132644 780609.1 1266.071 RR
91 3132645 780607.5 1265.92 RR
92 3132645 780606.2 1265.718 RR
93 3132643 780618.7 1266.433 RU
94 3132643 780617.5 1266.584 RU
95 3132644 780615.9 1266.614 RU
96 3132645 780614.6 1266.152 RU
97 3132646 780612.9 1266.724 RC
98 3132646 780611 1266.752 RR
99 3132647 780609.3 1266.769 RR
100 3132647 780607.7 1266.866 RR
101 3132645 780617.7 1266.68 RU
102 3132645 780616.5 1266.549 RU
103 3132646 780614.9 1266.472 RU
104 3132647 780613.5 1266.827 RC
105 3132647 780612.2 1267.026 RR
106 3132648 780610.5 1266.955 RR
107 3132648 780608.7 1266.974 RR
108 3132647 780617.3 1266.716 RU
109 3132647 780614.2 1266.933 RU
110 3132647 780615.8 1266.377 RU
111 3132648 780612.7 1267.357 RC
112 3132648 780610.7 1267.115 RR
113 3132648 780608.5 1267.105 RR
114 3132649 780617.8 1267.082 RL
115 3132649 780616.2 1266.951 RL
116 3132650 780614.7 1267.335 RL
117 3132650 780613.5 1267.635 RC

68
118 3132650 780612 1267.937 RR
119 3132650 780610.4 1267.339 RR
120 3132651 780617.8 1267.547 RR
121 3132651 780617.9 1267.547 RL
122 3132651 780616.1 1267.35 RL
123 3132651 780614.2 1267.512 RL
124 3132651 780612.6 1268.029 RC
125 3132652 780610.5 1267.808 RR
126 3132610 780599.9 1259.656 RL
127 3132609 780602.8 1260.719 RL
128 3132609 780604.2 1261.803 RL
129 3132610 780600.6 1260.04 RL
130 3132611 780599 1259.385 RL
131 3132612 780597.4 1259.571 RL
132 3132612 780596.2 1259.576 RC
133

69

You might also like