Mott’s Creek Pump Station 69

Client: CFPUA
Engineer: Black & Veatch
Delivery Method: Design-Build

Mott’s Creek basin is one of the larger regional sewer basins in the Cape Fear Public Utilities Authority System. It receives wastewater from 13 tributary pump stations in the Monkey Junction area. Our Design-Build team was tasked to improve the pump station and collection system, which would provide increased capacity – from 1.76 MGD to  4.18 MGD. Adding to the complexity of the project was the need to keep the existing station operational and accessible for CFPUA staff during the construction of the new plant within the same footprint. Once the new pump station was constructed, activated, and on line, the old was demolished.

Highlights

• Install 60ft x 30ft deep sheeted excavation with lower interior sheeted wall.
• Form and pour new wet-well and grinder channel
• Remove & dispose of existing screening facilities, pumps, piping and valves, electrical gear, and pump station building.
• Install a new channel grinder.
• Install new four (4) submersible pumps in a new wet-well with valve vault and meter vault.
• Install diesel bypass pump.
• Install concrete slab, piping, and electrical connections for diesel bypass pump.
• Relocate the existing odor control connection for use by the new station.
• Install a new standby generator with an automatic transfer switch (ATS)
• Install new precast electrical building with HVAC.
• Connect the proposed force main to the existing force main.
• Install one long side 2” water service
• Abandon existing well after new water service is activated.