Fish Passage Improvement at Crossing 3, Quiota Creek

This project replaced an existing concrete low-flow (Arizona) crossing and degraded culvert with a 53-foot bottomless-arched culvert. Engineered Streambed Material (ESM) was placed in the stream channel and configured to simulate natural stream geometry. A single lane hot-mix asphalt road surface was constructed over the top of the bottomless-arched culvert connecting the existing road surface below and above the project area. Guardrails and bridge rails were installed to meet all County safety requirements. All exposed concrete of the bridge system was given an anti-graffiti treatment. Construction work occurred within the boundary of the designated project area including all grading, excavation, filling, stockpiling, and equipment access. The project complied with all terms within the FRGP Biological Opinion and all permit conditions. The project was completed as scheduled and approved.



Project finished ahead of schedule do to extra time being planned in case any issues arose such as permitting.

This project will help maintain instream flows within Quiota Creek, open upstream habitat for all size classes of steelhead/rainbow trout, and improve riparian cover and creek functionality. The new bridge at Crossing 3 will provide complete juvenile and adult passage throughout the determined range of fish passage flows of 1-148 cfs.