River Mersey – Geotechnical bank stabilisation

An erosion hole had formed on the outside bend of a pronounced meander of the river, which was threatening the access route to the hotel


Project Brief

The Waterside Hotel & Leisure Club is located on the northern bank of the River Mersey at Didsbury, just south of Manchester.

In 2017, Cain Bio-Engineering was contacted by Waterside out of concerns arising from heavy erosion developing on the riverbank. A visit to the site identified an erosion hole formed on the outside bend of a pronounced meander of the river, which was progressing precariously towards the access route of the Hotel.

A solution was proposed and completed by Cain to stabilise the bank, and protect it from further erosion.

The Solution

The stability of the bank was secured by installing a rock rip rap along the erosion hole, reinstating the original bank-line.

Proposed reinstatement of the bank at the site of the erosion hole shown by the dotted white line.

Before

The images bellow show the erosion hole produced on the outside bend of the river, dangerously close to the access route of the Waterside Hotel.

During

After

The finished project was delivered in the summer of 2018. The stabilising rip rap offered an efficient solution to the erosion problem while remaining inconspicuous and aesthetically pleasing in its environment.

After – Vegitated verge extension
After – upper bank and rock-armour revetments

Client