Fish Passage Barrier Locations and Status

Fish Passage Barrier data represents basic information about existing and potential human-caused barriers to fish passage in watercourses. The dataset includes features like dams, culverts, bridges, tide gates, and weirs, along with general passage status. It is provided by the U.S. Department of the Interior and was last updated in April 2026.

Use Cases

• Model river network connectivity by analyzing barrier locations and passage status.
• Prioritize barrier removal or remediation projects using the passage status field.
• Assess infrastructure density by mapping barrier types like dams, culverts, and weirs.
• Study potential barriers to fish migration alongside existing, confirmed barriers.

Strengths

• Data is provided by the authoritative U.S. Department of the Interior.
• Includes multiple barrier types (dams, culverts, bridges, tide gates, weirs).
• Covers both existing and potential barriers for a complete assessment.

Limitations

• Unknown total row count and geographic scope limit reproducibility.
• Sample data and specific column definitions are unavailable for review.

Provenance

Source

U.S. Department of the Interior.

Freshness

Updated in April 2026.