​​​Specialist Consultancy Services


The formation, or modification of any river structure which impedes the natural movement of fish in a watercourse usually requires the provision of a fish pass.

​ANF Consulting have designed numerous fish passes including obtaining EA consent and National Fish Pass Panel approval with provision for not only salmon and sea trout but coarse fish too.

​Eels have suffered from a catastrophic collapse in numbers in recent years and their return to the UK's rivers is a key environmental requirement. Unable to use traditional fish passes separate provision is usually required for eels, elvers and also lamprey. We have designed all for a variety of sites and have recently designed and built the largest Larinier fish pass in England at Brotherton Weir on the River Aire near Leeds and are currently designing an even larger one on the River Trent at Cromwell Weir.

ANF consulting lTD