The unimpeded movement of fish and other aquatic related organisms allows organisms to respond to changing habitat conditions, facilitates genetic dispersal, provides access to seasonal or reproductive habitats, and allows for the maintenance of populations over the long term. Jasper National Park monitors the catchment area size for all culverts associated with creeks Strahler order 4 or less going through them and with perennial water flow. The dataset shows whether the culvert is a fish passage or not (i.e. barrier free or with a status of remediated from the first culvert evaluation in 2005).