Harefield Road Flood Alleviation Project – underground offline storage of combined sewer flows
Description: – Underground offline storage of combined sewer flows in the event of a 30-year storm.
Challenges: Main site was located in the parking lot of a historic building pub.
Key achievements and innovations: 7.5m diameter underground tank. Pumping station with valve chamber, control kiosk and vent. 1,800mm diameter manholes with 1,500 wide weirs.
Location: Uxbridge, London
Client: Thames Water