Barhale’s 3 United Utilities stormwater contracts: design and risk notes for engineers
Reviewed by Tom Sullivan

First reported on New Civil Engineer
30 Second Briefing
Barhale has secured three contracts under United Utilities’ £3bn Better Rivers programme to expand stormwater storage capacity and cut combined sewer overflows to rivers across North West England. The packages will focus on new offline storage tanks and network upgrades to hold excess flows during peak rainfall, reducing untreated discharges to receiving watercourses. Civil and geotechnical teams can expect substantial deep excavations, complex temporary works and interface with existing live sewer infrastructure in constrained urban corridors.
Technical Brief
- Barhale’s three packages sit within United Utilities’ £3bn Better Rivers capital investment programme.
- Programme scale suggests sustained demand for deep drainage, shaft sinking and large-diameter pipeline installation expertise.
- For similar CSO compliance programmes, the Better Rivers model provides a benchmark for multi-site framework delivery.
Our Take
The AMP8 contracts under United Utilities’ £3bn Better Rivers programme signal that the North West is becoming one of the more active UK regions in our infrastructure database for large-scale stormwater and CSO mitigation, which may influence how other water companies scope their own AMP8 bids.
Barhale’s repeat work with United Utilities, as noted in the related AMP8 coverage, suggests the contractor is consolidating a niche in complex water and wastewater civils, which could give it an advantage in future framework renewals and alliancing models across England and Wales.
With Better Rivers targeting performance over more than 300 miles of network, these North West schemes are likely to require significant off-line storage and tunnelling solutions, creating a pipeline of technically demanding civils packages rather than simple above-ground tank builds.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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