02223 Selective Site Demolition.docx

PART 1: GENERAL

1.1 SUMMARY

A. Section Includes: The removal and disposal of drainage structures, pavements, base and subbase material, other obstructions, salvage of items, and backfilling cavities left after removal is complete.

1.2 SUBMITTALS

A. General: Submittals shall be according to Section 01009 - General Information and Requirements.

B. Schedule: Submit one (1) copy of a schedule indicating proposed methods and sequence of operations for demolition work prior to commencement of work. Include coordination and details for dust, noise, erosion, sediment and traffic. Provide detailed sequence of removal work to ensure uninterrupted progress of Government's on-site operations.

1.3 PROJECT/SITE CONDITIONS

A. Work Limits and Control Points: Will be established by the Contracting Officer.

B. Traffic Control Plan: [Provide for approval by the Contracting Officer a plan to control and protect public traffic [adjacent to and] within the project according to the MUTCD.]

PART 2: PRODUCTS

(There are no applicable requirements.)

PART 3: EXECUTION

3.1 EXAMINATION

A. Verification of Conditions: Visit the site with the Contracting Officer and verify the extent and location of the demolition work required. Photograph existing damage to structure surfaces, equipment, or to surrounding properties which could be misconstrued as damage resulting from demolition work and give copies to the Contracting Officer prior to starting work.

3.2 PREPARATION:

A. Landscape Preservation: Protect vegetation that is outside the work limits from injury.

B. Protection: Protect existing buildings, facilities or utilities outside the work limits from damage. Damage shall be repaired or replaced at the Contractor's expense. Repair work shall not begin until authorized in writing by the Contracting Officer. Protect the site with temporary erosion and sediment control measures.

C. Traffic Control: Roadways shall not be closed or obstructed without written permission of the Contracting Officer. All operations shall be conducted with minimum interference to public or private roadways according to section 01500 Temporary Facilities and Controls.

3.3 DEMOLITION

A. General: Raze, remove and dispose of pavements, and other obstructions to complete the specifications of the contract.

B. Removal of Pavement: Saw or mill existing pavement as shown on the drawings. Break into pieces or store and either use with new asphalt or dispose of offsite according to section 01009 3.3A General Information and Requirements.

3.4 EXPLOSIVES

A. Requirements: Use of explosives will not be approved.

3.5 BURNING

A. The use of burning at the project site on government controlled lands will not be permitted.

3.6 SALVAGE

A. Requirements: Shall be according to Section 01009 - General Information and Requirements.

3.7 DISPOSAL OF DEBRIS

A. Requirements: Items or debris not designated as salvage for the Government shall become the property of the Contractor. Remove and dispose of such materials off government controlled lands according to Section 01009 - General Information and Requirements.

3.8 BACKFILLING

A. General: Fill cavities caused as a result of demolition.

B. Backfill Placement: Backfill materials shall be spread over the full width of the cross section of the cavity to a maximum loose thickness of 6-inches and shall be compacted as specified below before the next layer is spread. Use any type of compaction equipment except rubbertired or smoothsteelwheel non-vibratory rollers to obtain the required degree of compaction. The inplace materials shall be free of lenses, pockets, streaks, or layers of materials differing substantially in texture or gradation from the surrounding materials.

C. Frozen Material: Embankment shall not be placed when either the material or the surface on which it is to be placed is frozen.

3.9 FIELD QUALITY CONTROL

A. Testing: Furnish necessary equipment, labor, and materials to conduct the testing. Testing shall be conducted in the presence of the Contracting Officer who shall be given 48 hours notice before any test is to be conducted. Make arrangements for a certified independent testing laboratory, according to the requirements of Section 01458 - Testing Laboratory Services, to perform the required testing, recording, and distributing of the results.

B. Moisture Content: During placing and compacting of backfill, the optimum moisture content (± 2 percent) as determined by AASHTO T 217 or AASHTO T 239, unless otherwise approved in writing by the Contracting Officer, shall be maintained by wetting or drying, as required.

C. Compaction: The backfill shall be compacted to a minimum density of 95 percent of the maximum dry density as determined by AASHTO T 99, Method C.

3.10 CLEANUP

A. Site Grading: Rough grade areas affected by demolition and leave level to within 1 percent. As per typical pavement cross section drawing.

PART 4: MEASUREMENT AND PAYMENT

4.1 METHOD OF MEASUREMENT

A. Units: The work described in this section will be paid for on a lump sum basis. Removal of pavement will be paid for by the square yard.

4.2 BASIS OF PAYMENT

A. Payment: Prices and payment will be made at the contract price, as indicated in the Bid Schedule, and will include full compensation for the work described in this section. Payment will be made under:

Pay Item Description Pay Unit

END OF SECTION

WFO BLM Split Rock Parking Lot Rebuild Project 02223 -