Case Study

Blackburn Town Centre UID’s Blackburn

The project objective was to resolve five unsatisfactory intermittent discharges (UID's) into the River Blakewater

United Utilities
Contract No.


Blackburn Town Centre UID's

Works included the construction of a 20m ID 22m deep detention tank as a segmental shaft, 2 No. new large RC CSO structures up to 11m deep in temporary sheet piled cofferdams, tunnelled transfer sewers to 1500mm ID & associated shafts / piled pits, open-cut drainage, manholes and all associated MEICA (CSO screens, pumps, rising mains, control equipment, etc.). All works were undertaken in an urban area requiring extensive PR activities. (UU CD100)