TERP 01(NCB)
MS – 06 - ES
1. General
This work shall consist of supplying, laying and compacting approved soil shoulder material
on prepared existing shoulder or on constructed embankments.
2. Reference
Volume 4, Technical Specification, Chapter 400; Sub Clause 409
Volume 6 Section IX: Contract Drawings
Construction Drawings
3. Resources
3.1 Material
No. Material Specification Remarks
1 Shoulder material Clause 1708.5 of Tech. Spec. Supplied from
approved borrow pits
3.2 Equipments/ Machinery
No. Equipment/Machinery Q’ty Remarks
1 Backhoe Loader/Mini Loader 1 For loading / Spreading
2 Dump Trucks / Trippers / Farm tractors 2 For Transporting Soil
3 1ton Roller/ 3.5 ton Roller 1 For Compaction
4 Rammers 2 -do-
5 Water Bowser 1 For Watering
6 Soil Testing Equipment 1 For Testing of Soil
3.3 Manpower (One unit)
No. Job Title Q’ty Remarks
1 Foreman 1
2 Operators 3
3 H/V Drivers 3
4 Labours 8
5 Lab Technician 1
6 Laboratory Helpers 2
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TERP 01(NCB)
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4. Flow Chart
Step 1 – Setting out
Step 2 – Ground Preparation
Step 3 – Placing and compaction of Shoulder material
5. Sequence of shoulder construction
Step 1 –Setting out
The limits and levels of the designed road shoulder at every 20m interval (lesser
interval at the curves) shown in the construction drawings or directed by the Engineer
at site shall be marked by fixing timber pegs. The height to be filled shall be
demarcated by stretching a string line between pegs.
Step 2–Ground preparation
The areas of embankment construction are already completed ground preparation for
shoulder construction is not required. The existing shoulder shall be trimmed, leveled
and shaped to get the minimum filling thickness of 150mm. The trimming leveling
and shaping shall be carried out manually in small section and by motor grader in
large sections. Excavated soil shall be removed from the site to disposal yards using
backhoe loader and dump trucks or farm tractors. The leveled surface of existing
shoulder shall be compacted using rammers or rollers to suit the site requirements.
Step 3 –Placing and Compaction of shoulder material
First the shoulder material collected from the borrow pits should be tested and
submitted for approval. The routine tests on shoulder material shall be carried out for
maintain the quality continuing basis. The already approved shoulder material from
borrow pits shall be transported by dump trucks. Material shall be spread in 225mm
layer thickness by manually or mini loader. If required, material shall be sufficiently
wetted or dry up at or near the Optimum Moisture Content (OMC). The material shall
be compacted with 5ton/10ton roller in wider sections and rammer/1ton roller in
strips. The shoulder material shall be compacted to a density not less than 100% of
maximum dry density as determined by the standard compaction test. The field
density test shall be carried out for the section compacted in every 200 m2 and field
moisture should be checked in every 100m2
To confirm the lines and levels stipulated, the finished lines and levels of the
completed shoulder shall be checked with the design finish level of the shoulder.
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TERP 01(NCB)
MS – 06 - ES
6. Supervision
Position Responsibilities
Site Engineer Perform the shoulder construction on the basis of method
statement, specification and drawings.
Quality Control Currying out all kind of inspection in accordance with the
Inspector (QCI) Quality Procedure and Method Statement
Technical Officer All setting out works in accordance with Method
Statement and drawings
Forman Assist to Site Engineer/ Technical officer
7. Inspection
According to the attached Inspection and Test Plan “H” point, “W” point inspection
and tests shall be notified to QC Inspector. QC Inspector shall inspect site works as
scheduled and report the Check List to Quality Assurance Engineer.
The Inspection and Test Plan for relevant working area shall be available on site for
the Resident Engineer to see. Upon completion of the Inspection and Test Plan, the
ITP shall be maintained at the MAGA – CDIG Project Office and submit to the RE
with the progress claim.
8. Traffic control
Two flagmen shall be assigned on either side of the working area, not to disturb the
traffic flow specially after commenced the shoulder construction on other side of the
road.
9. Safety Provision
Warning signs shall be displayed in advance as well as in working area. Traffic cones
shall be placed along the working area. Safety arrangement for Earth shoulder
construction as per drawing attached herewith.
10. Attached Forms
10.1 Inspection and Test Plan
10.2 Check List
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