EARTHWORK
ITEM 100 – CLEARING AND GRUBBING
Description
This item shall consist of clearing, grubbing, removing and disposing all vegetation and debris as
designated in the Contract, except those objects that are designated to remain in place or are to
be removed in consonance with other provisions of this Specification. The work shall also include
the preservation from injury or defacement of all objects designated to remain.
All surface objects and all trees, stumps, roots and other protruding obstructions, not designated
to remain, shall be cleared and/or grubbed, including mowing as required, except as provided
below:
(1) Removal of undisturbed stumps and roots and nonperishable solid objects with a
minimum depth of one (1) meter below subgrade or slope of embankment will not
be required.
(2) In areas outside of the grading limits of cut and embankment areas, stumps and
nonperishable solid objects shall be cut off not more than 150 mm (6 inches) above
the ground line or low water level.
(3) In areas to be rounded at the top of cut slopes, stumps shall be cut off flush with or
below the surface of the final slope line.
(4) Grubbing of pits, channel changes and ditches will be required only to the depth
necessitated by the proposed excavation within such areas.
(5) In areas covered by cogon/talahib, wild grass and other vegetation, top soil shall be
cut to a maximum depth of 150 mm below the original ground surface or as
designated by the Engineer, and disposed outside the clearing and grubbing limits as
indicated in the typical roadway section.
Method of Measurement
Measurement will be by one or more of the following alternate methods:
1. Area Basis. The work to be paid for shall be the number of hectares and fractions
thereof acceptably cleared and grubbed within the limits indicated on the Plans or
as may be adjusted in field staking by the Engineer. Areas not within the clearing
and grubbing limits shown on the Plans or not staked for clearing and grubbing will
not be measured for payment.
2. Lump-Sum Basis. When the Bill of Quantities contains a Clearing and Grubbing
lump-sum item, no measurement of area will be made for such item.
3. Individual Unit Basis (Selective Clearing). The diameter of trees will be measured
at a height of 1.4 m (54 inches) above the ground. Trees less than 150 mm (6
inches) in diameter will not be measured for payment.
When Bill of Quantities indicates measurement of trees by individual unit basis, the units will be
designated and measured in accordance with the following schedule of sizes:
Diameter at height of 1.4 m Pay item designation
Over 150 mm to 900 mm Small
Over 900 mm Large
ITEM 101 – REMOVAL OF STRUCTURES AND OBSTRUCTIONS
Description
This Item shall consist of the removal wholly or in part, and satisfactory disposal of all buildings,
fences, structures, old pavements, abandoned pipe lines, and any other obstructions which are
not designated or permitted to remain, except for the obstructions to be removed and disposed-
off under other items in the Contract. It shall also include the salvaging of designated materials
and backfilling the resulting trenches, holes, and pits.
All concrete pavement, base course, sidewalks, curbs, gutters, etc., designated for removal, shall be:
(1) Broken into pieces and used for riprap on the project, or
(2) Broken into pieces, the size of which shall not exceed 300 mm (12 inches) in any dimension
and stockpiled at designated locations on the project for use by the Government, or
(3) Otherwise demolished and disposed-off as directed by the Engineer. When specified, ballast,
gravel, bituminous materials or other surfacing or pavement materials shall be removed and
stockpiled as required per standard, otherwise such materials shall be disposed-off as
directed.
There will be no separate payment for excavating for removal of structures and obstructions or for
backfilling and compacting the remaining cavity.
Payment will be made under:
Pay Item Number Description Unit of Measurement
101 (1) Removal of Structures and Lump Sum
Obstruction
101 (2) Removal of Each
101 (3) Removal of Square
101 (4) Removal of Linear Meter
ITEM 102 – EXCAVATION
Description
This Item shall consist of roadway and drainage and borrow excavation and the disposal of material in
accordance with this Specification and in conformity with the lines, grades and dimensions shown on the
Plans or established by the Engineer.
Roadway Excavation
Roadway excavation will include excavation and grading for roadways, parking areas, intersections,
approaches, slope rounding, benching, waterways and ditches; removal of unsuitable material from the
roadbed and beneath embankment areas; and excavating selected material found in the roadway as
ordered by the Engineer for specific use in the improvement. Roadway excavation will be classified as
“unclassified excavation”, “rock excavation”, “common excavation”, or “muck excavation” as indicated in
the Bill of Quantities and hereinafter described.
(1) Unclassified Excavation. Unclassified excavation shall consist of the excavation and disposal
of all materials regardless of its nature, not classified and included in the Bill of Quantities
under other pay items.
(2) Rock Excavation. Rock excavation shall consist of igneous, sedimentary and metamorphic
rock which cannot be excavated without blasting or the use of rippers, and all boulders or
other detached stones each having a volume of 1 cubic meter or more as determined by
physical measurements or visually by the Engineer.
(3) Common Excavation. Common excavations shall consist of all excavation not included in
the Bill of Quantities under “rock excavation” or other pay items.
(4) Muck Excavation. Muck excavation shall consist of the removal and disposal of deposits of
saturated or unsaturated mixtures of soils and organic matter not suitable for foundation
material regardless of moisture content.
Borrow Excavation
Borrow excavation shall consist of the excavation and utilization of approved material required for the
construction of embankments or for other portions of the work, and shall be obtained from approved
sources, in accordance with Clause 61 and the following:
(1) Borrow, Case 1
Borrow Case 1 will consist of material obtained from sources designated on the Plans or
in the Special Provisions.
(2) Borrow, Case 2
Borrow Case 2 will consist of material obtained from sources provided by the Contractor.
The material shall meet the quality requirements determined by the Engineer unless otherwise provided
in the Contract.
Payment will be made under:
Pay Item Number Description Unit of Measurement
102 (1) Unsuitable Excavation Cubic Meter
102 (2) Common Excavation Meter Cubic Meter
102 (3) Surplus Rock Cubic Meter
102 (4) Surplus Unclassified Excavation Cubic Meter
ITEM 103 – STRUCTURE EXCAVATION
Description
This Item shall consist of the necessary excavation for foundation of bridges, culverts, underdrains, and
other structures not otherwise provided for in the Specifications. Except as otherwise provided for pipe
culverts, the backfilling of completed structures and the disposal of all excavated surplus materials, shall
be in accordance with these Specifications and in reasonably close conformity with the Plans or as
established by the Engineer.
This Item shall include necessary diverting of live streams, bailing, pumping, draining, sheeting, bracing,
and the necessary construction of cribs and cofferdams, and furnishing the materials therefore, and the
subsequent removal of cribs and cofferdams and the placing of all necessary backfill.
It shall also include the furnishing and placing of approved foundation fill material to replace unsuitable
material encountered below the foundation elevation of structures.
Basis of Payment
The accepted quantities, measured as prescribed in Section 103.3, shall be paid for at the contract unit
price for each of the particular pay items listed below that is included in the Bill of Quantities. The
payment shall constitute full compensation for the removal and disposal of excavated materials
including all labor, equipment, tools and incidentals necessary to complete the work prescribed in this
Item, except as follows:
(1) Any excavation for footings ordered at a depth more than 1.5 m below the lowest elevation
shown on the original Contract Plans will be paid for as provided in Part K, Measurement
and Payment, unless a pay item for excavation ordered below Plan elevation appears in the
Bill of Quantities.
(2) Concrete will be measured and paid for as provided under Item 405, Structural Concrete.
(3) Any roadway or borrow excavation required in excess of the quantity excavated for
structures will be measured and paid for as provided under Item 102.
(4) Shoring, cribbing, and related work required for excavation ordered more than 1.5 m (60
inches) below Plan elevation will be paid for in accordance with Part K.
Payment will be made under:
Pay Item Number Description Unit of Measurement
103 (1) Structure Excavation Cubic Meter
103 (2) Bridge Excavation Cubic Meter
103 (3) Foundation Fill Cubic Meter
103 (4) Excavation ordered below Plan Cubic Meter
Elevation
103 (5) Shoring, Cribbing and Related Work Lump Sum
103 (6) Pipe Culverts and Drain Excavation Cubic meter
