Althon manufacture mammal ledges in GRP with support bracktes for installation into new or existing culverts.

Mammal ledges allow animals such as badgers, otters and other wildlife to pass through culverts or under bridges reducing the risk of drowning in the culvert or river.

Our GRP mammal ledges are durable, lightweight and easy to install with non – slip surfaces. CAD and PDF download drawings are available from the website. Our ledges can be combined with our precast headwalls at the end of culverts. Please contact us for design assistance and pricing.

If you require any assistance or more information please contact us by phone on 01603 488700 or by email

GRP Mammal Ledges line drawing

    All Available Downloads for GRP Mammal Ledges