Case Study

Main Drainage

Shiremoor Flood Relief Scheme

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Contract Period:
42 Weeks

Value:
£3,500,000

Client:
Northumbrian Water Limited
Abbey Road
Pity Me
County Durham
DH1 5FJ

Engineer:
Mott MacDonald
St Annes Wharf
112 The Quayside
Newcastle Upon Tyne
NE1 3DX

Project Description:

The Shiremoor Flood Relief Scheme is an excellent example of collaborative working between client, designer and contractor to address serious problems affecting local communities. The work involved the re-sewering of a housing estate and a new off-site sewer to convey storm flows to a storage/flow attenuation tank. Flows are held within the tank until sewerage capacity becomes available at the end of the storm.

The extensive resewering had a major impact on those fronting the works as well as the estate as a whole due to vehicle movements. Input from Seymours supply chain came up with the innovative use of large HDPE pipes to replace the traditional insitu concrete storage tanks to cover the equivalent area of a football pitch. The benefits included rapid construction, reduced number of vehicle movements, reduction in demand for raw materials such as steel and aggregates and less risk for accidents and falls associated with deep excavations and concrete shuttering.

There was extensive liaison with the affected communities to ensure that they were aware of the progress as the scheme developed and to keep them informed when work began on site.