SERVICES PROVIDED
- Geotechnical investigations
- Preliminary and final design
- Cost estimating and scheduling
- Preparation of geotechnical data and baseline reports
The Sacramento Regional County Sanitation District (SRCSD) in California has begun a major capital improvement program involving the design and construction of a series of large diameter sewer interceptors to meet the demand for additional capacity in rapidly growing residential and industrial developments in the Sacramento area.
URS provided preliminary and final design services for a section of the Bradshaw Interceptor, which provides relief capacity to the existing collection systems serving Sacramento County's northeast area. Because of residential development and traffic along the alignment and the disturbance that would result from conventional sewer pipeline construction methods, the SRCSD opted to construct the new 2-mile long, 9-foot diameter interceptor using trenchless construction methods.
URS evaluated two trenchless construction methods: pipe jacking and conventional soft ground tunneling, with an emphasis on minimizing disturbance to the parkway and residents. Other evaluation criteria included quality of the completed project, construction cost, duration of construction, safety, and constructability factors. Based on the evaluation of these factors, the conventional tunneling alternative was selected for the project.
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