Description
The Delaware County Regional Sewer District is seeking a qualified contractor to replace an existing brick manhole at the Tartan Fields wastewater‑reuse facility with a new 48‑inch polymer‑concrete manhole, reconnect associated force‑main and gravity‑sewer pipelines, and implement a flow‑maintenance bypass to maintain service during construction. The work includes site clearing, mobilization, construction entrance preparation, trench dam installation, topsoil placement, seeding and mulching, and full site restoration to pre‑construction conditions. All utility locations must be identified and protected, and a Stormwater Pollution Prevention Plan (SWPPP) must be approved prior to start. The contract is a fixed‑price, unit‑price arrangement with performance and payment bonds required.
• Replace brick manhole 04MH001737000020 with a polymer‑concrete, slab‑top manhole (48 in).
• Re‑install 6‑in. force‑main and 12‑in. gravity‑sewer PVC lines, providing necessary fittings and service extensions.
• Provide a flow‑maintenance bypass from Concord & Tillinghast pump stations to the Tartan Fields reuse facility, with standby hauling equipment.
• Perform clearing & grubbing, construct a 20 × 80 ft construction entrance, install silt‑fabric fence, backfill, compact trench dams, place ≥6 in topsoil, seed and mulch.
• Coordinate with multiple utilities (AEP, Columbia Gas, Del‑Co Water, AT&T, Alta Fiber, etc.) and comply with SWPPP, OSHA, and local environmental restrictions.