Sewer System Capacity Model-2026 (650460-100003)

The City of Columbus, Division of Water Reclamation, is requesting proposals for professional engineering services to refine and enhance the Sewer System Capacity Model (CIP # 650460-100003), with proposals due August 28, 2026 at 1:00 PM Eastern Time.

The scope includes refining the system-wide sanitary and combined sewer collection system model; performing capacity evaluation and sewer system operations analysis; conducting flow monitoring with data management and analysis; and providing support to Blueprint Columbus, the 2015 Integrated Plan, and the Wet Weather Management Plan Update. The project will update the current model with the most current collection system configuration, upgrade calculation methods to increase accuracy, enhance usability and operations, and apply the model to new development, performance, and operational conditions. The work is driven by the City's compliance obligations under Ohio EPA SSO and CSO Consent Orders and the stated goal of eliminating sanitary sewer overflows and minimizing water-in-basement occurrences.

Proposals must be submitted exclusively through Bonfire at https://columbus.bonfirehub.com/login; no hard copies or email submissions are accepted. The last day to submit questions is August 14, 2026, with responses posted as addenda on Bonfire. No pre-proposal meeting will be held. The selected consultant is anticipated to attend a scope meeting approximately four weeks after the proposal due date. All inquiries should reference the project name and be directed to DPUCapitalRFP@columbus.gov; phone calls concerning RFP questions will not be accepted. Firms must meet minimum requirements stated in the RFP for their proposals to be considered for award. There is no charge to establish a Bonfire account or submit proposals.