Applications

Coastal Protection
Dam Waterproofing
Dam Erosion Protection
Dam Spillway Protection
Ports & Harbours
Flood Alleviation

River Training

Broadlands, Norfolk
Scarborough
Richmond, Thames
Orgreave River Diversion

River Bank Overflow Protection

Scour Protection
Underwater Impact Protection
Strengthening Rock Structures
Landfill Linings
Offshore Services

River Bank Works - Overflow Erosion Protection

Climate change is likely to increase demand for flood protection work. For some areas in Europe, greater peak river flows are anticipated with a consequent increased risk of flooding.

Problems

The more obvious protection measures frequently introduce additional problems:

Larger channels can reduce flood risk but are expensive, and have a considerable adverse environmental impact
If river embankments are overtopped, the embankments themselves are at risk from erosion by the overtopping water OSA being placed

Solutions

Relatively low value land can be used as temporary flood plains, with overflow waters contained by earth embankments
Durable erosion protection for flood conditions - either OSA on geotextile or the asphalt-reinforced geomat - may also be placed on the 'dry' side of the river embankment Revetment during flood conditions

The pictures show both measures on a Belgian river.

www.hesselberg-hydro.com