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Tusayan drainage master plan identifies basin, channel measures; county to seek federal grant and establish local floodplain
Summary
Coconino County and the town of Tusayan reported progress on a drainage master plan that combines upstream flood‑retarding basins with in‑town storm drain and channel improvements; staff said they will apply for a Federal Lands Access Program grant and pursue a local floodplain designation to reflect updated flood modeling.
Coconino County’s Flood Control District presented a technical update Oct. 21 on the Tusayan Drainage Master Plan and a proposed local floodplain for the town of Tusayan. Engineers described a multi‑element approach that combines several upstream detention basins in the forested watershed with new storm‑drain and channel work through town to reduce flood exposure for Highway 64, the Tusayan wastewater treatment plant and town streets.
Lucinda Andriani, the district director, said the engineering team has reached consensus on a preferred set of measures and has advanced from conceptual planning into the design concept phase. The work includes:
- Watershed measures: Five primary upstream locations were identified to store and attenuate flows, including a large basin near Tusayan Pines and a second large basin at the Echo Draw/10X meadow; smaller basins were recommended on Water…
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