This project improved fish passage at the Central California Traction Railroad Crossing on the Stockton Diverting Canal, within the lower Calaveras River system near Stockton in San Joaquin County. A second flume, notches, and a downstream roughened rock ramp were installed to provide passage at flows between 30 and 1,000 cfs. The project opened approximately 13.4 miles of stream to fall-run Chinook salmon and Central Valley steelhead — a core recovery population in the Southern Sierra and San Joaquin watershed.