
Flagstaff residents and commuters, mark your calendars for some navigational adjustments. Starting October 13, a key stretch of 6th Avenue, from 1st Street to Main Street, will be off-limits for a month, confirmed by the City of Flagstaff. The road is closing up shop to make way for the Killip Basin Outlet Structure, part of the larger Spruce Wash Flood Mitigation projects. While the closure is a temporary snag in daily commutes, detours along East Street, 4th Avenue, 3rd Street, and Dortha Avenue will be clearly marked to reroute traffic and keep you moving. Pedestrians haven't been forgotten – sidewalk access remains open throughout the area.
Let there's be no surprises here; the Killip Basin Outlet Structure promises to be a safeguard for larger storm events. A sort of hidden hero, the structure will channel excess stormwater with the grace of an unseen creek from the Killip School Regional Detention Basins to an existing underground conduit on Main Street. This new addition stands as a barrier against potentially destructive waters overtopping the basins and is vital for the community's ongoing combat against post-wildfire flooding.
It's been a long road, or perhaps more aptly, a long construction project. The City of Flagstaff appreciates citizens' patience as they approach the finish line for the flood mitigation project series. Support for this work translates directly to bolstered defenses for local homes and businesses about the whims of nature. Got questions? Need clarity? The project hotline at 928-255-5153 is your go-to, and further details are a mere email away at [email protected]. And for those digitally inclined, updates are available at the project's website.









