The new sewer is four-miles long, beginning at the east end of the Water Quality Control Plant. The sewer will be four- to 5- feet in diameter and 10- to 20-feet deep. Approximately 2,500-feet of the alignment is tunneled under the existing railroad and in an area where a park exists. Group Delta, an NV5 Company, reviewed existing information and provided geotechnical engineering information for design of the pipeline. Our team evaluated liquefaction and lateral spreading potential along alignment. Our team also provided extensive field explorations and laboratory testing.
Added Value
- Geotechnical Design Support: Our team provided critical geotechnical engineering data for pipeline design, including evaluation of liquefaction and lateral spreading potential along the four-mile alignment.
- Extensive Field & Lab Investigations: Our team conducted comprehensive field explorations and laboratory testing to characterize subsurface conditions, supporting safe and efficient design of deep sewer segments and tunneled sections.
- Risk Mitigation for Complex Alignment: Our team helped navigate geotechnical challenges under railroads and park areas by reviewing existing data and tailoring recommendations to minimize construction risks and environmental impact.
Location:
Santa Ana, California
Client:
Brown & Caldwell
Project Owner:
City of Riverside
Service:
Geotechnical Engineering
Laboratory Services
Market:
Water/Wastewater
Project Size: 4 Miles
Project Cost: $11.6 million

