This is a multi-park measure, which includes an inventory and assessment of 1,754 culvert and 51 bridge locations along the major highways and roads in Banff, Kootenay, Yoho, Waterton Lakes, Mount Revelstoke, and Glacier national parks. In Glacier National Park the capacity for fish passage above and below each crossing was evaluated for 107 road-stream crossings in 2007, of which 32 were considered likely to support fish passage. In 2017, an additional culvert was added to the inventory, bringing the total road-stream crossing count to 33. Aspects of a stream crossing that may pose a barrier to aquatic connectivity include high water velocity, insufficient water depth, outfall drop, a debris blockage, flow contraction/excessive turbulence, an inlet drop and/or culvert bottom raised above substrate.