Stream Crossing Projects to Pass Peak Flows


A bridge spanning Green Point Creek allows passage of peak flows

Many road crossing structures in watershed streams are too small to allow peak flows to pass during flood events and to allow passage of large debris floating downstream. Stream crossing projects implemented in the watershed are designed to improve drainage patterns that have been altered by roads and to prevent erosion and washouts resulting from debris buildup and high flows.

Culverts needing replacement are identified and prioritized by examining indicators such as chronic erosion above or below the culvert and using regional culvert-sizing equations. Drainage system improvements also include upgrading and repairing culverts in problem areas to restore natural drainage functions.