Site work for a water / sewer project in Alameda, California. Completed plans call for site work for a water / sewer project.

The Public Works Department is seeking proposals for engineering design services for approximately 2.3 miles of sanitary sewer main rehabilitation located within existing roadways, associated manholes and lower sewer laterals. The City's sewer system includes approximately 140 miles of City-owned sanitary sewers and 42 sewage pump stations, including 14 miles of pipes and 9 pump stations located in Alameda Point, the former Alameda Naval Air Station site. In addition, there are over 10 miles of pipelines and 7 pump stations located in Alameda that are part of the East Bay Municipal Utility District (EBMUD) wastewater system, which serves as the "backbone" of Alameda's sewer network. The Consultant shall evaluate and review existing CCTV inspection and GIS data, if available, conduct utility investigation, geotechnical analysis, survey and design work for all sanitary sewer mains within the project. The Consultant must conduct a field inspection of each pipeline segment, connection between a private sewer lateral and pipeline segment, manhole and appurtenance for the purpose of verifying accuracy of existing CCTV, maps, and other related data. The City has two characteristic soil types - those with relatively stable sandy soil conditions and those with more unstable soils (e.g. fill material ) and high groundwater levels. The stable, sandy soils are located within the historic island limits and predominately consist of Merrit Sands. The City has successfully and economically removed and replaced sewers in these areas with open-cut methods. The latter conditions generally are on the perimeter of the main Alameda Island and much of Harbor Bay Isle and consist of artificial fill. Construction in these poor soil areas may require additional design considerations, substantial trench shoring (e.g., sheet piles for deeper excavations) and/or more extensive dewatering. assuming a July 2027 start. Question Deadline 09/09/2026 at 5:00 PM PT All questions regarding the proposal documents and proposal should be directed to: William Smith, Project Manager City of Alameda Department of Public Works 950 West Mall Square, Room 110 Alameda, CA 94501 wsmith@alamedaca.gov