These culverts will help the creek in a couple of ways. During high flows, such as during a heavy rain storm, some of the water from Partington Creek will be diverted into the channel, at the upper end of the project. This diversion will prevent Partington Creek from spilling onto the roadway and the small bridges that cross the creek. During periods of low flows, the culverts will feed small pools in the channel, which will provide new aquatic habitat for fish, such as salmon fry.