Government Contract | New Hampshire
Prequalification Statements - Primary Clarifier and Gravity Thickener Upgrade Project

Bid Information

Bid Alert No: 00000589507

Bid Title: Prequalification Statements - Primary Clarifier and Gravity Thickener Upgrade Project

Agency Bid No. Title: FY17-270-01

Received Date: 06/03/2016

Close Date: 06/24/2016

Purchase Type: Not Stated

Delivery Point: Manchester, New Hampshire

Delivery Date: Not Stated


The City of Manchester is seeking prequalification statements from General Contractors for the Primary Clarifier and Gravity Thickener Upgrade Project. The Primary Clarifier and Gravity Thickener Upgrade Project will include replacement of all internal mechanical components and drive mechanisms within the existing three (3) 130-ft diameter primary clarifiers and three (3) 50-ft. diameter gravity thickeners. The existing primary clarifiers are below grade concrete structures and are fully enclosed with structural aluminum covers. The gravity thickeners are located within the existing treatment facility building and are coated steel tank construction. A major part of the upgrade for all three (3) thickeners is re-coating all internal and exterior surfaces, structural steel plate repairs to the steel tanks, and provision of new stainless steel covers. In addition, modifications will be required to the HVAC system to ventilate the newly covered thickeners to the existing odor control system. Associated with the upgrade is new electrical and instrumentation work including replacement of the existing motor control centers (MCC) and PLCs and integration into the existing SCADA system. The project also includes replacement and modifications of pumps, piping and valves for the primary sludge, primary scum, thickened sludge, plant water, and equipment water. The Project has an estimated construction cost of $7,700,000 and contract duration of 540 calendar days for Substantial Completion and 600 calendar days for Final Completion. No additional specifications were given.

Bid Related Documents

Download Solicitation Notice

Product Codes: 89000, 91438, 91450, 91479, 93972, 83888, 93662, 93663, 93691, 91461, 96878, 91359, 91391

Agency Information

Issuing Agency: City of Manchester

State: New Hampshire

Agency Type: State and Local

Contact: David Mercier Environmental Protection Division, 300 Winston Street, Manchester, New Hampshire, 03103

Phone: 603-230-9898



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