Description
The City of Columbus seeks a qualified contractor to design, construct, and commission extensive odor‑reduction upgrades at its Southwest Compost Facility, funded largely through the WPCLF program. The work includes demolition of existing structures, construction of new concrete pads, leachate lagoon improvements, a biofilter odor‑control system, a new composting system, storm‑water management, security upgrades, and associated mechanical/electrical installations. The contract is a lump‑sum, multi‑discipline construction project with a substantial‑completion schedule of roughly 21 months and a final‑completion schedule of about 2 years.
• Demolition of solar‑collector fields and the existing Compost Mixing Building, followed by site preparation, earth‑work, and concrete pad construction.
• Installation of a new negative‑aeration pipe‑on‑grade composting system, biofilter fans, ductwork, controls, and associated instrumentation.
• Construction of leachate lagoon upgrades, storm‑water detention basin, yard‑waste area, guardhouse, and truck‑wash station, plus upgrades to security‑camera and networking infrastructure.
• All work must comply with WPCLF, Ohio and U.S. EPA requirements, Davis‑Bacon prevailing‑wage rules, and a 5.4 % MBE/WBE subcontractor goal.
• Project includes a $1 M pavement replacement allowance, $200 k networking hardware/software allowance, a $248,820 tree‑fund allowance, and a 10 % construction contingency on the lump‑sum amount.