In 2022, Alaska began replacing a fish-blocking culvert with a 100-foot bridge at Little Tonsina River with a $1.3 million budget. 1 year later, 70.4 miles of salmon habitat were reopened to fish safely

A flood-damaged culvert along Alaskas Little Tonsina River long prevented salmon from swimming upstream. In July 2022, crews began replacing the failing structure with a 100-foot bridge. The $1.3 million project, backed by federal infrastructure funds, finished one year later. By restoring natural currents, engineers successfully reopened 70.4 miles of vital spawning streams, allowing wild Pacific salmon to migrate freely once again.

Raccontata daeconomictimes.indiatimes.com