60-Sec 31 11 00 - CLEARING AND GRUBBING.pdf

CLEARING AND GRUBBING

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SECTION 31 11 00

PART 1 - GENERAL

1.01 SECTION DESCRIPTION

A. The Work of This Section Includes:

1. Clearing

2. Grubbing

3. Stripping and stockpiling topsoil

4. Debris disposal

B. Definitions:

1. Clearing is defined as the removal of trees, brush, down timber, rotten wood, rubbish, any other vegetation, and objectionable material at or above original ground elevation not designated to be saved. Clearing also includes removal of fences, walls, guard posts, guard rail, signs, and other obstructions interfering with the proposed work.

2. Grubbing is defined as the removal from below the surface of the natural ground of stumps, roots and stubs, brush, organic materials and debris.

1.02 RELATED SECTIONS

A. Related Work Specified Elsewhere:

1. Section 01 57 13: Soil Erosion and Sediment Control

2. Section 31 23 33: Excavation, Backfill and Compaction

3. Section 32 92 00: Finish Grading, Seeding and Sodding

1.03 JOB CONDITIONS

A. Contractor may clear all obstructions within the permanent and temporary construction easements and within the limit of disturbance of Owner's property as absolutely necessary to perform the construction work. Contractor shall leave as many trees as possible within the temporary construction easements and shall not disturb portions of Owner's property beyond the limit of disturbance. Removal of trees shall be coordinated with the Resident Project Representative.

1.04 SUBMITTALS

A. Agreements for Disposal of Debris:

1. Arrange for disposal of debris resulting from clearing and grubbing to locations outside Owner's property, easements and public right-of-ways and obtain a written agreement with the owners of each property where the debris will be deposited.

2. Submit two (2) copies of the agreement with each property owner releasing Owner from responsibility in connection with the disposal of the debris.

PART 2 - PRODUCTS

2.01 MATERIALS

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A. Temporary Fencing:

1. Undamaged picket snow fence, 4' high, formed of wooden slats, tightly woven with wire cable or orange, open mesh plastic construction fencing, 4' high, or other acceptable, highly visible, weather resistant, easily maintained fencing that provides a substantial barrier.

2. Soil-set fence posts, studded "T" type, 6' high.

B. Tree Wound Dressing:

1. Antiseptic and waterproof, asphalt base.

PART 3 - EXECUTION

3.01 PREPARATION

A. Notify Engineer at least 48 hours prior to beginning any clearing work.

B. Protect benchmarks, utilities, existing trees, shrubs and other landscape features designated for preservation with temporary fencing or barricades satisfactory to the Resident Project Representative. No material shall be stored or construction operation carried on within four

(4) feet of any tree to be saved or within the tree protection fence.

3.02 UTILITY RELOCATIONS

A. Inform all companies, individuals and others owning or controlling facilities or structures within the limits of the work which have to be relocated, adjusted or reconstructed in sufficient time for the utility to organize and perform such work in conjunction with or in advance of Contractor's operations.

B. Comply with the provisions of PA Act 287 (1974) as last amended by PA Act 121 (2008).

3.03 CLEARING

A. Confine clearing as required to within the limits of the public right-of-ways,easements and Owner's property. Attention is called to Paragraph 1.03 of this Section.

B. Fell trees in a manner that will avoid damage to trees, shrubs, and other installations which are to be retained.

C. Where stumps are not required to be grubbed, flushcut with ground elevation.

3.04 GRUBBING

A. Turf clearing and grubbing shall be staged to limit exposure and potential erosion. [For utility construction, stages shall be limited to that length of trench which may be installed and backfilled in one (1)day.]

B. Grub areas within the construction limits to remove roots and other objectionable material to a minimum depth of 8".

C. Remove all stumps within the cleared areas unless otherwise authorized by the Resident

Project Representative.

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3.05 STRIPPING AND STOCKPILING TOPSOIL

A. Stripping of topsoil shall be staged to limit exposure and potential erosion. [For utility construction, stages shall be limited to that length of trench which may be installed and backfilled in one (1) day.]

B. Strip topsoil to whatever depth it may occur from areas to be excavated, filled, or graded and stockpile at a location approved by the Resident Project Representative for use in finish grading.

C. Topsoil shall not be used as backfill or removed from the site.

3.06 DEBRIS DISPOSAL

A. Trees, logs, branches, brush, stumps, and other debris resulting from clearing and grubbing operations associated with the Work on the Project site and/or within off-site easements/public right-of-ways shall become the property of Contractor and shall be disposed of legally.

B. Debris resulting from the clearing and grubbing work shall not be deposited or buried on the

Project site, easements or public right-of-ways.

C. Open burning of debris is prohibited.

3.07 RESTORATION

A. Repair all injuries to bark, trunk, limbs, and roots of remaining plants by properly dressing, cutting, tracing and painting, using approved arboricultural practices and materials.

B. Replace trees, shrubs and plants designated to be saved which are permanently injured or die during the Contract or the maintenance period as a result of construction operations with like species acceptable to the property owner.

C. Remove protective fences, enclosures and guards upon the completion of the project.

D. Restore guard posts, guard rail, signs and other interferences to the condition equal to that existing before construction operations.

END OF SECTION