LOCATION:
A flood alleviation scheme to reduce the flood risk to properties within the local vicinity by enhancing the local drainage system. Historically, the infrastructure was overwhelmed during storm events, unable to efficiently convey surface water away from the community.
The project was carefully planned in two phases to ensure a comprehensive solution.
- Inlet structure.
- Overflow and ford culverts.
- Storm water outlet comprising 500m of overflow pipe and 57m of concrete jacking pipe.
- Thrust bore tunnelling.
- Ground stabilisation.
Challenge
Installing the overflow pipe over a length of approximately 500 meters and drainage pipes beneath the main high street carriageway and between properties.
Solution
We utilised a range of innovative construction techniques including thrust bore tunnelling, which allowed us to install the drainage pipes beneath the carriageway and properties without causing disruption to local people.
Ground stabilisation methods included resin injection to maintain the integrity of the infrastructure during the critical phases of pipe jacking and tunnelling operations.
Outcome
A new inlet structure coupled with an innovative overflow culvert now redirects flood flows safely into the River Neath.
Completion of an essential culvert on a ford further safeguards the community from flooding.
