FOLSOM — The City of Folsom has approved an agreement with Dewberry Engineers Inc. to provide construction management and inspection services for the upcoming Basin 4 Sewer Phase 1 Project, a major infrastructure effort designed to rehabilitate aging sewer lines in the city’s historic district and surrounding neighborhoods.
At Tuesday’s City Council meeting, members voted to adopt Resolution No. 11456, authorizing the City Manager to execute the $541,442 agreement. The funding comes from the city’s Sewer Operating Fund, and the project is included in the current Capital Improvement Plan.
According to Environmental and Water Resources Director Marcus Yasutake, the Basin 4 project was identified as a priority through the city’s ongoing wastewater condition assessment program, a requirement under its state permit. The work is designed to address deficiencies in the system, reduce inflow and infiltration, lower annual maintenance costs, and minimize the risk of sewer overflows.
The project will replace or rehabilitate approximately 3,200 linear feet of sanitary sewer pipeline and numerous manholes across several areas of the city. Specific improvements include about 400 feet of sewer pipeline near Granite Park along Reading Street from Mormon/Natoma Alley to Figueroa/Mormon Alley; 1,800 feet within the Natoma-Persifer Alley between Sibley Street and Riley Street; and 1,000 feet along Sutter Street between Scott Street and Coloma Street. The project also calls for rehabilitation of a sewer manhole near Oak Avenue Parkway and East Bidwell, relining of 16 manholes near East Bidwell and Clarksville Road, and replacement of the flow meter at Pump Station No. 2.
City staff explained that the improvements will take place over a construction period of about 150 days, followed by a 90-day closeout period. Work is expected to include both day and night shifts, full-time inspection, materials testing, and special inspections such as cured-in-place pipeline lining and manhole coating.
Three firms—Dewberry Engineers Inc., Psomas, and West Yost & Associates, Inc.—submitted proposals earlier this summer. After a technical and cost evaluation, city staff determined Dewberry provided the best overall value. While West Yost submitted a lower overall bid, staff concluded that the hours allocated in their proposal were insufficient to meet the scope of work and would likely result in higher costs once corrected. Dewberry’s proposal also included a detailed constructability review that staff incorporated into the construction bid, which may help avoid complications during the project.
The total cost of the Basin 4 Sewer Phase 1 Project is now budgeted at $3.89 million. Officials emphasized that the sewer rehabilitation effort is an important part of Folsom’s long-term infrastructure management plan, ensuring the city continues to meet state regulatory requirements while protecting residents from costly system failures.
Copyright © 2025, Folsom Times, a digital product of All Town Media LLC. All rights reserved. No portion of this publication may be reproduced, distributed, or transmitted in any form or by any means, without the prior written permission of the publisher.
