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AMP6 Hagg Lane

Project Detailsx

Client:C2V+
Duration:26 weeks
Value:circa £520,000
Category:Commercial

Project Overviewx

The AMP6 Hagg Lane Unacceptable Intermittent Discharge (UID) project commenced on-site in January 2016 and aimed to reduce the number of storm spills into the River Keer to ensure compliance with the Shellfish and Bathing Waters directives.  The UID project comprised installation of new sewers within Warton Road, construction of a new spill chamber and sinking of 3,600m3 storage shaft.

The Unitied Utilities site had a circular secant pile wall from ground level down to the rock head.  This formed the outside of the main shaft and provided ground support to the soft soil overlying the rock.  On completion of the pile wall excavation of the shaft, a reinforced concrete liner was installed.
ACS was responsible for the new sewers within Warton Road that comprised a new 750mm diameter sewer that passed beneath a network rail bridge.  We installed a new CSO chamber on Warton Road along with other smaller chambers.  The work was carried out within a full road closure and was completed on time within the 11 week closure period.  Warton Road was resurfaced upon completion.
A new bifurcation chamber was constructed by ACS that allowed wastewater to overflow into the new detention tank during heavy rainfall.  We also laid new sewers up to 850mm diameter between Warton Road and the new detention tank constructed by C2V+.
Reference from the client:
“ACS dealt very well with a very difficult scheme and should be credited with their hard work.”