This work shall consist of cutting, removing and disposing of all materials such as trees, bushes, shrubs, stumps, roots grass, weeds, top organic soil not exceeding 150 mm in thickness, rubbish etc., are unsuitable for incorporation in the works, from the area of road land.
Pits resulting from uprooting the trees and stumps to required compaction. Clearing and grubbing shall be performed in advance of earth work operations and in accordance with the requirements of these Specifications.
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 vide Clause 306.
If the area has thick vegetation/roots/trees, a crawler or pneumatic tired dozer of adequate capacity may be used for clearance purposes. The dozers 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 500mm 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.
On areas beyond these limits, trees and stumps required to be removed as directed by the engineer shall be cut down to 1 m below ground level so that these do not present an unsightly appearance.
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.
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.
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 expense, suitable safeguards approved by the Authority 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 vide Clause 306.
Before start of operations, the Contractor shall submit to the Authority 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.
Trunks, branches and stumps of trees shall be cleaned of limbs and roots and stacked. Also boulder, stones and other materials usable in road construction shall be neatly stacked as directed by the Authority Engineer. Stacking of stumps, boulders, stones etc., shall be done at specified spots with all lifts and leads.
Care shall be taken to see that unsuitable waste materials are disposed to the approved site, or in such a manner that there is no likelihood of these getting mixed up with the materials meant for embankment, sub grade and road construction.
The daily Progress reports sheets shall record the following information:
Standard construction methodologies for highway works as per MoRTH 5th Revision and IRC Specifications.
