Client: United Utilities
Services: Design management
The United Utilities Better Rivers (BR) programme aims to reduce spills from the combined sewer network during storm events. This BR programme will improve the efficiency of the network involving sewer repairs and relining, separating out clean surface water tributaries, increasing network storage capacity by creating online/ off-line attenuation capacity and/or raising spill weir levels.
Project scope
At our Boundary Park project, the existing overflow chamber is located 11 meters below the surface in an urban environment. The initial solution of raising the existing weir would have required significant civil engineering to create safe access for maintenance.
Key benefits
By collaborating with the client, the managed service provider delivery team and our Costain design partners, we proposed an alternative approach. Notably, the reduced scope could:
- Eliminate excavation work 11 meters below ground level
- Save 12 months on construction time
- Save 21,000 kgCO2e related to materials
- Produce £1.8m construction and material cost saving.
Contact
Gerard Shore
Sector director
[email protected]