Located on-forest just upstream of the northern terminus of Paradise Road, the City of Flagstaff’s Spruce Avenue Wash Rock Vane Weirs Project featured the construction of seven (7) rock vane weirs in the stream channel of Spruce Avenue Wash. These weirs are intended to reduce channelized head cutting, which results in the downstream movement of soil and potentially exposes a City of Flagstaff waterline as well as a critical gas line that serves approximately 30,000 residents including the Flagstaff Medical Center. This $56,000 project was completed in August 2019.