Aquatic Organism Passage Program
The Forest Service is recognized as a national leader in road crossing techniques that ensure aquatic organism passage, or the ability for fish and other aquatic creatures to move up or downstream under roads. The agency also assists in projects to allow for passage at irrigation diversions and small dams. Restoration work accomplished under this program occurs on forest highways, roads, and irrigation diversions in cooperation with state and county transportation agencies, landowners and a wide range of interest groups.
Assessments from the past decade confirm the ecological importance of providing passage to all native aquatic and riparian species through road-stream crossings and for all life stages of those species, particularly to provide for robust communities and for resilience to climate change stresses. Aquatic organism passage at road-stream crossings has emerged as one of Forest Service’s strongest examples of internal integration and quantifiable, on-the-ground restoration.