We have been working with the Don Catchment Rivers Trust for a while now on a project to construct five fish passes on the River Don, in Sheffield. Work on site is progressing well and the first of the fish passes (a baulk pass) is now in place.
Construction of the two Larinier passes is also progressing well and there are currently some fairly large holes in a couple of the weirs in Sheffield! Some great pics of the construction have been posted online by DCRT here: https://doncatchment.wordpress.com/2016/09/28/one-down-four-to-go/