CLEARING AND GRUBBING

Clearing and Grubbing is categorized under Item-100 of the DPWH standard specifications.

•SPECIFICATIONS FOR CLAERING AND GRUBBING PROVIDES THAT:

1. All surface objects and all trees, stumps, roots and other protruding obstruc- tions, not designated to remain should be cleared and/or grubbed including the mowing required as follows:

a.) Removal of undisturbed stumps and roots and non-perishable solid objects with a minimum depth of 90 cm below sub-grade or slope of embankment will not be required.

b.) Outside the grading limit of cut and embankment areas, stumps and non perishable solid objects should be cut off not more than 15 cm. above the ground line or below low water level.

c.) In areas to be rounded at the top of cut slope, stumps should be cut off flush with or below the surface of the final slope line.

d.) Grubbing of pits, channel changes and ditches will be required only to the depth necessary by the proposed excavation with such areas.

e.) Burning should be under constant care of competent watchman that the surrounding vegetation, adjacent property, or anything designated to re- main on the right of way will not be jeopardized.

→CLEARING and GRUBBING in RURAL AREA:

Clearing and grubbing in rural areas frequently involve removing treesAnd tree stumps from the road site and disposing of the debris. Clearing and grubbing is usually paid for by the acre of land cleared, at the unit price bid for “clearing and grubbing” or at a single lump sum figure covering all such work on the project.

→CLEARING and GRUBBING in URBAN AREA: Before construction can begin, relocations must be arranged for people and businesses that are displaced. The houses, pavements, sidewalks, and like obstructions must be removed.

Methods of payment for site clearance can be quite complex. Pavement and sidewalk removal are commonly paid for at a bid price per square yard or cube yard of material removed or on a lump-sum basis.

•METHODS OF MEASUREMENT

→Area Basis

→Lump Sum Basis.

→Individual Unit Basis (selective clearing).

The unit basis will be designated and measured in accordance with thefollowing schedule of size:

Diameter at height 1.4 meters -Pay item designated.Over 15 cm. to 90 cm. -SmallOver 90 cm. -Large