C312 - Flood Alleviation Scheme at River Lavant, Chichester.

Environment Agency

Part of a 5.5m scheme to alleviate major flooding in Chichester.


project specific partnering contract

Very high profile 'Project Specific Partnering' Contract under ECC Option 'A' Form of Contract.

Works include the construction of 2No. twin 1200mm ID Mechanised Pipejack tunnelled road crossings of 190m & 150m in length (680m total), including the busy A27(T) trunk road to link diverted flood waters to nearby lakes. Ground conditions being very dense sandy silty gravels, with high chalk and flint content and high groundwater.

Construction of large RC inlet and outlet structures in sheet piled cofferdams and a large RC flow control system.

Study Project Date  
C673 - Blackburn Town Centre UID's 01/11/2012
C312 - Flood Alleviation Scheme at River Lavant, Chichester. 01/03/2010
C507 - Pumping Station & UID at New Brighton, Wirral 01/11/2007
C411 - WwTW's at Mickle Trafford & Thornton Hough 01/03/2005

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