Professional Engineering Services for Wastewater Capital Improvements Projects

2026-11-03

The Town of Derry , New Hampshire , through its Department of Public Works ( DPW ), is soliciting Statements of Qualifications ( SOQs ) and Requests for Proposals ( RFPs ) from qualified professional engineering firms to provide planning , design , permitting , bidding , and construction - phase services for upcoming wastewater infrastructure projects . The Town intends to use this qualifications - based solicitation to select one or more engineering firms with demonstrated expertise in municipal wastewater systems . The selected firm ( s ) may be engaged under contract to provide professional engineering services for the following priority projects : • Route 28 ( Ryan ’ s Hill ) Sewer Main Extension Project : This project will extend the Town ’ s municipal sewer system along Route 28 ( Rockingham Road ) from its current terminus at Berry Road southerly to the area known as Ryan ’ s Hill . The work includes construction of approximately 3 , 525 feet of 15 - inch gravity sewer and 2 , 000 feet of 6 - inch force main sewer , as well as a new sewer lift station . The project is currently estimated at $ 7 . 1 million and will be funded through a combination of NH DES State Revolving Fund ( SRF ), State Aid Grants ( SAG ), an EPA Congressionally Directed Spending grant , and local appropriations . Design is anticipated in 2026 , with bidding targeted for late 2026 or early 2027 . • Wastewater Treatment Plant ( WWTP ) Improvements Project : This project consists of a comprehensive rehabilitation and upgrade of the Town ’ s 4 . 0 MGD Wastewater Treatment Facility located off Transfer Lane . Work includes replacement of the Hypalon / HDPE liners in the three treatment lagoons ; replacement of the aeration systems in two of the lagoons ; removal and off - site disposal of approximately 1 , 200 dry tons of sludge ; and restoration of Lagoon 3 to service , including installation of new aeration diffusers . New bypass yard piping may also be required to maintain plant operations and treatment capacity while individual lagoons are taken offline during construction . The estimated project cost is $ 15 million and will be funded through a combination of NH DES State Revolving Fund ( SRF ), State Aid Grants ( SAG ), and local appropriations . The Town has been approved for a $ 300 , 000 Clean Water SRF loan to support reengineering efforts . Design engineering is anticipated in 2026 – 2027 , with bidding targeted for late 2027 . The project will likely be delivered through multiple construction contracts .

New Hampshire

2026-04-28