DSOD_June_5,_2026_-_rev_1.pdf

This is a Request for Qualifications document issued by the City of Napa, California, for the Conn Dam Stability Assessment, Spillway Improvements, and Feasibility Alternatives Study. The City seeks qualified multidisciplinary engineering consulting firms to provide professional engineering, geotechnical, environmental, hydraulic, structural, dam safety, and economic evaluation services. The project consists of three phases: Phase One requires generation of a geotechnical data report for submission to the California Division of Safety of Dams by December 31, 2028; Phase Two involves assessment of dam stability with deformation estimates under static and seismic conditions; and Phase Three develops a feasibility alternatives analysis addressing identified spillway deficiencies and long-term reservoir expansion opportunities. Qualifications-based proposals are due October 29, 2026 by 4:00 p.m., with the top three ranked firms to be invited for oral interviews. The procurement follows the Brooks Act and 2 CFR Part 200 Qualifications-Based Selection process, with cost excluded from the evaluation phase and price proposals not to be submitted.

The prime consultant must be legally authorized to perform engineering services in California, maintain a local office, possess 10 or more years of continuous dam engineering experience, and demonstrate completion of at least three embankment dam projects exceeding 75 feet in height within the past 15 years. The proposed project manager must be a California-registered civil engineer with 15 or more years of professional experience, including at least 5 years managing dam safety projects and experience managing projects exceeding $20 million in construction value. Federal funding sources include the U.S. Army Corps of Engineers Water Resources Development Act 2022 authorization, Corps Water Infrastructure Financing Program, Federal Emergency Management Agency, Bureau of Reclamation, and EPA State Revolving Fund programs. Respondents must comply with Uniform Guidance, NEPA, Clean Water Act, Endangered Species Act, civil rights and labor regulations, and maintain active System for Award Management registration. All project records must be retained for a minimum of five years after final closeout.