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Silt Surge Threatens Historic Gloucester Docks
5 Oct
Summary
- Silt accumulation in Gloucester Docks is exacerbated by climate change.
- Water pumping for Bristol's supply may be increasing silt levels.
- Local MP highlights need for long-term silt management solutions.
Gloucester Docks is experiencing significant silt accumulation, a problem exacerbated by ongoing climate change. Local MP Alex McIntyre has voiced concerns, stating that the current issues are short-term and will likely intensify as environmental conditions deteriorate.
The primary cause of silt entering the docks is the necessary pumping of water from the River Severn into the canal system. During dry periods, lower river levels mean water is drawn from deeper, sediment-rich areas, increasing silt intake.
Further speculation suggests that water being pumped from the Gloucester and Sharpness Canal to supply Bristol's drinking water needs may also be contributing to the silt build-up. This practice, governed by an agreement since the 1960s, has led to questions about whether reducing this water transfer could lessen the need for pumping from the River Severn.
Tony Conder of Gloucester Heritage Harbour noted that much of this pumping occurs during August and September, when the River Severn is either low or stirred up by tides, carrying more sediment. A Bristol Water spokesperson stated that while CRT manages silt, they are collaborating with the trust to optimize operations and reduce sediment transfer.
