City of Sunnyvale, CA


Construction Management; Utility Management & Condition Assessment; Wastewater

The Lawrence Expressway Sanitary Sewer trunk main was originally installed in 1953 with a life expectancy of approximately 50 years. Lawrence Expressway is a County route with manhole entry points in traffic lanes or at buys intersections requiring extensive traffic control and limited working hours, creating a difficult situation for rehabilitation.

Water Works Engineers provided professional services for condition assessment; repair, rehabilitation and replacement recommendations and prioritization; design and preparation of bid documents, and construction support for the City of Sunnyvale Lawrence Expressway Sanitary Sewer Rehabilitation Project. We completed a detailed CCTV condition assessment of the entire trunk sewer and developed a design report to identify repair, rehabilitation, and replacement recommendations for the entire alignment.