Matanuska-Susitna Borough

Fish Passage Program

Fish Passage Maps

Across the country, millions of barriers fragment rivers, which block fish migration and put communities at higher risk to flooding. Improving fish passage is one of the most effective ways to help conserve vulnerable species while building safer infrastructure for communities.

In the Borough, 586 culverts have been surveyed regarding fish passage.

  • 33% are likely to pass juvenile and adult salmon
  • 62% may be some kind of salmon barrier
  • 5% still need to be assessed