542-24-108 | Install New CLC Accessible Route Phase 1 | NCO 4 Construction East

This project is for the installation of a sidewalk from Building 138 CLC along the east side of New York Avenue up to Blackhorse Hill Road, terminating in an 8 ft. wide by 10 ft. deep landing at Blackhorse Hill Road. The work must adhere to the current Architectural Barriers Act Accessibility Standards (ABAAS) and VA Barrier Free Design Guide, as well as VA Specifications. The contractor must provide all supervision, labor, supplies, transportation, and equipment necessary to complete the work.

The contractor may work during business days 6:30a 4:00p. The period of performance for this work will be 60 days. This project is to include the installation of approximately 200 feet of reinforced >3000 psi concrete sidewalk six feet wide by 6 inches thick with >6 inches of mechanically tamped gravel base. The sidewalk shall not exceed a 1:20 pitch (5% grade) and shall have 6 ft. x 6 ft. clear flat landings at the proper ABAAS measured distances.

Where a guardrail is indicated, extend the sidewalk 12 inches beyond the inside face of the handrail in compliance with ABAAS. Provide a maximum 2% cross slope where required to facilitate rainwater runoff. The sidewalk must not channel rainwater along its surface at any location. The sidewalk shall have soil retention curbs (hardscape) where necessary to prevent wash out. Provide four (4) American with Disabilities Act (ADA) crosswalk matts as required at roads and service drives.

Pin with rebar when new sidewalks meet existing sidewalk. Install expansion and construction joints where required. The existing grade will require a cutting and filling as required to achieve an even pitch of the sidewalk route and of adjacent grass-area grades to gradually taper to existing from the edges of the new sidewalk to facilitate lawn maintenance. Grass-area grades are to match the grade of the sidewalk edges as closely as practical. Excavate, level, and finish-rake the surrounding grade.

The construction perimeter is to be fenced in with 6-foot-high fence and locking gate. A 12 x40 space will be offered to the contractor for a construction trailer or dumpster at our laydown yard. Dumpsters must be secured to prevent entry. The contractor is to provide their own properly maintained Portable Potty. Contractor is to maintain a clean, orderly, and safe project perimeter to include dirt washouts, grass cutting, and orderly materials and equipment.

The contractor shall provide underground utility investigation in consultation with all available VA documentation. The contractor will additionally utilize PA Call before you dig to assess any PECO and PA American Water lines along Blackhorse Hill Road. Contractors are to provide EPA approved concrete washout containers. All demolished concrete will be recycled, and receipts provided to the COR. The contractor shall wash off all vehicles to prevent the spread of mud.

The contractor is responsible to identify all utilities underground with ground penetrating radar, keep a paper copy on the jobsite, and provide the digital mapping to the COR for the CVAMC database. The contractor shall repair all damages incurred in the vicinity of the construction site and have all grading to be hand raked, adding four inches of topsoil on the south side of Blackhorse Hill Road, grass-seeded and covered with straw-infused mesh and watered until project completion.