The work's been done by Highways England at Skitwath Beck, Penruddock, about six miles from Penrith. The project was completed over the summer and will make it easier for fish like brown trout, eels and Atlantic salmon to travel through. This is especially important during the spawning season for salmon and trout when they need to travel upstream to lay eggs. Dion Auriac, Highways England’s project manager, said: "This is a small but important project which will help support aquatic biodiversity at a location right along on the A66. "It also underlines our commitment to reducing the impact of our roads on the environment.