Client: City of St. Joseph, Department of Public Works
Completion Date: Design: 2012
Location: St. Joseph, Mo.
The Whitehead Creek Stormwater Separation project consists of a new large pipe that will transport a portion of the stormwater runoff in the Whitehead Creek Basin directly to the Missouri River. Currently, stormwater runoff from streets, roofs and other areas that reaches Whitehead Creek is piped along with wastewater (sewage) in a 16-foot diameter pipe known as the Whitehead Creek Combined Sewer. The existing pipe carries both stormwater and sewage and overflows to the Missouri River during most rain storms. The plan is to construct a diversion structure and second pipe to intercept stormwater runoff from the creek before it reaches the larger pipe in order to reduce sewer overflows as part of the City's Long Term Overflow Control Plan.
Burns & McDonnell was selected to perform alternatives analyses, geotechnical investigations, preliminary and final design, cost estimation, environmental permitting, and easement and right-of-way acquisition services.
Preliminary and final design
4,000 feet of 78- to 126-inch diameter conduit to convey stormwater
1,300 feet of 8-foot diameter tunnel
A 9-foot diameter railroad jack and bore
Stormwater diversion structure on Whitehead Creek
Outfall structure and downstream channel improvements
Modifications to the existing Whitehead combined sewer diversion structure
2,000 feet of 36-inch diameter separated sanitary sewer piping