ICE Award for Seymour CEC

Megstone Avenue Flood Alleviation Scheme in Cramlington, carried out by Seymour Civil Engineering for Northumbrian Water was commended at the ICE North East Robert Stephenson Civil Engineering Awards 2015 in the Small Project (Under £500k) Category.Megstone

Properties on Megstone Avenue, Cramlington flooded due to hydraulic incapacity within the surface water sewer network. The traditional solution of an underground concrete storage tank was deemed non cost beneficial in 2010 and the properties remained at risk of flooding.

A further study in 2013 with the aim of reconsidering the flooding problem to provide some customer benefit indicated that the surface water nature of the flooding and the local availability of green space proved ideal for retrofitted Sustainable Urban Drainage Systems (SUDS).

NWL engaged AmecFW to undertake the detailed design of the detention basin and Seymour CEC delivered the project under the AMP5 Sewer Flo oding Programme.

The solution comprised:

  • 112m of surface water sewerage.
  • Detention basin overflow chamber.
  • Detention basin Inlet/outlet structure.
  • 1800m3 detention basin providing 800m3 of sacrificial storm storage.

The project team foresaw a high level of public interest in the scheme. A number of key stakeholders were identified and the delivery team compiled a stakeholder engagement plan. 

The Judges said “The project which is a fine example of collaboration between all parties, has brought huge community benefits by using innovative and cost effective ‘retrofitted SUDs’ design solution. The value engineering exercise ensured a cost beneficial outcome and accident free scheme, delivered within budget and programme. Extensive community consultation ensured essential ‘buy-in’, as well as educating the cause of the flooding due to urban creep.”