MORT&SH

                                                 CLEARING AND GRUBBING
201.1 Scope
This work shall consist of cutting, removing and disposing of all materials such as trees
bushes, shrubs, stamps: roots, grass, weeds, rubbish, top organic soil, etc. to an average~
depth of 150 mm In thickness, which in the opinion of the Engineer are unsuitable for
incorporation in the works, from the area of road land containing road embankment drains
cross-drainage structures and such other areas as may be specified on the drawings or b;
the Engineer. It shall Include necessary excavation, back filling of pits resulting from uprooting
of trees and stumps to required compaction, handling, salvaging, and disposal of cleared
materials with all leads and lifts. Clearing and grubbing shall be performed in advance of
earthwork operations and in accordance with the requirements of these Specifications.
201.2 Preservation of Property/Amenities
Roadside trees, shrubs, any other plants, pole lines, fences, signs, monuments, buildings,
pipelines, sewers and all highway facilities within or adjacent to the highway which are not
to be disturbed shall be protected from injury or damage. The Contractor shall provide and
install at his own cost, suitable safeguards approved by the Engineer for this purpose.
During clearing and grubbing, the Contractor shall' take all adequate precautions against soil erosion, water pollution, etc., and where required, undertake additional works to that effect
vied Clause 306. Before start of operations, the Contractor shall submit to the Engineer for
approval, his work plan including the procedure to be followed for disposal of waste materials,
etc., and the schedules for carrying out temporary and permanent erosion control works as
stipulated in Clause 306.3.
201.3 Methods, Tools and Equipment
Only such methods, tools and equipment as are approved by the Engineer and which will
not affect any property to be preserved shall be adopted for the Work. If the area has thick
vegetation/roots/trees, a crawler or pneumatic tyred dozer of adequate capacity may be used
for clearance purposes. The dozer shall have ripper attachments for removal of tree stumps.
All trees, stumps, etc., falling within excavation and fill lines shall be cut to such depth below
ground level that in no case these fall within 500 mm of the bottom of the sub grade. Also,
all vegetation such as roots, under-growth, grass and other deleterious matter unsuitable
for incorporation in the embankment sub grade shall be removed between fill lines to the
satisfaction of the Engineer. All branches of trees extending above the roadway shall be
trimmed as directed by the Engineer.
All excavations below the general ground level arising out of the removal of trees, stumps,
etc., shall be filled with suitable material and compacted thoroughly so as to make the surface
at these points conform to the surrounding area.


Section 200                                                                                                       Site Clearance

Ant-hills both above and below the ground, as are liable to collapse and obstruct free subsoil
water flow shall be removed and their workings, which may extend to several meters, shall
be suitably treated.

201.4                                                                                                           Disposal of Materials

All materials arising from clearing and grubbing operations shall be taken over and shall be
disposed of by the Contractor at suitable disposal sites with all leads and lifts. The disposal
shall be in accordance with local, State and Central regulations



201.5   Measurements for Payment

Clearing and grubbing for road embankment, drains and cross-drainage structures shall be
measured on area basis in terms of hectares. Cutting of trees up-to 300 mm in girth and
removal of their stumps, including removal of stumps up to 300 mm in girth left over after
trees have been cut by any other agency, and trimming of branches of trees extending above
the roadway and back filling to the required compaction shall be considered incidental to the
clearing and grubbing operations. Clearing and grubbing of borrow areas shall be deemed
to be a part of works preparatory to embankment construction and shall be deemed to have
been included in the rates quoted for the embankment construction item and no separate
payment shall be made for the same.
Ground levels shall be taken prior to and after clearing and grubbing. Levels taken prior to
clearing and grubbing shall be the base level and will be accordingly used for assessing the
depth of clearing and grubbing and computation of quantity of any unsuitable material which
is required to be removed. The levels taken subsequent to clearing and grubbing shall be the
base level for computation of earthwork for embankment.
Cutting of trees, excluding removal of stumps and roots of trees of girth above 300 mm shall
be measured in terms of number according to the girth sizes given below :-
i) Above .300 mm to 600 mm
ii) Above 600 mm to 900 mm
iii) Above 900 mm to 1800 mm
iv) Above 1800 mm

Removal of stumps and roots including back filling with suitable material to required compaction
shall be a separate Item and shall be measured in terms of number according to the sizes
given below:-
i) Above 300 mm to 600 mm
ii) Above 600 mm to 900 mm
iii) Above 900 mm to 1800 mm
iv) Above 1800 mm


201.6     Rates

201.6.1     The Contract unit rates far the various items  clearing and grubbing shall
be payment in full far carrying the required perorations including full compensation far all
labaur, materials, tails, equipment and incidentals necessary to. complete the work. These
will also. include removal  stumps trees less than 300 mm girth excavation.[1 and back filling
to. required density, where necessary, and handling, giving credit to"wards savage value
disposing  the cleared materials with all lifts and leads. Clearing and grubbing Dane in
excess  150 mm by the Contractor shall be made gad by the Contractor at his awn cast
as per Clause 301.3.3 to. the satisfaction  the Engineer prier to. taking up earthwork. Where
clearing and grubbing is to. be Dane to. a level beyond 150 mm, due to. site considerations, as
directed by the Engineer, the extra quantity shall be measured and paid separately.
201.6.2  The Contract unit rate far cutting trees  girth above 300 mm shall include
handling, giving credit towards salvage value disposing the cleared materials with all lifts
and leads.
201.6.3  The Contract unit rate far removal  stumps and roots trees girth above
300 mm shall include excavation and back filling with suitable material to. required compaction,
handling, giving credit towards salvage value disposing  the cleared materials with all lifts
and leads.

201.6.4 The Contract unit rate is deemed to. include credit t awards value  usable
materials, salvage value  unusable materials and off-set price of cut trees and stumps
belonging to. the Forest Department. The off-set price of cut trees and stumps belonging
to. the Forest Department shall be deducted farm the amount due to. the Contractor and
deposited with the State Forest Department. In case the cut trees and stumps are required to.
be deposited with the Forest Department the Contractor shall do. so. and no. deduction t awards
the off-set price shall be effected. The offset price shall be as per guidelines / estimates  the
State Forest Department.
Where a Contract does not include separate items of clearing and
grubbing, the same shall be considered incidental to. the earthwork items and the Contract
unit prices far the same shall be considered as including clearing and grubbing operations.


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Testing method

STRIPPING VALUE OF AGGREGATES.

TEN PERCENT FINES VALUE.

DUCTILITY TEST. ( IS : 1208 – 1978 )