- Water Services
- Flood Information
Learn about Museum Fire Flood Projects and Pipeline Fire West Flood Area Projects.
2nd Edition Museum Flood Question and Answer Document (Jan 14, 2022)
Museum Flood Question and Answer Document (Nov 18, 2021)
Find information to protect your property from flooding after the 2019 Museum Fire.
Coconino County Post-Museum Fire Watershed Update (PDF)
Museum Fire Letter to Residents, May 12, 2021: Flood Preparedness for the Upcoming Monsoon Season (PDF)
Flood Insurance FAQ: Learn about your area's flood risk and new FEMA maps.
ReduceFloodRisk.org: Explore an interactive flood mitigation resource library.
Reduce Your Flood Risk: A Resource Guide by Maricopa County (April 2022)
SW Fire Science Consortium Post-Museum Fire Flooding Analysis (Jan. 7, 2022)
Seismic Monitoring of Post-wildfire Debris Flows Following the 2019 Museum Fire, Arizona (PDF) - Porter et al.
One of several "Meet in the Streets" events, May - June 2021 to prepare for monsoon season
FEMA Initial Public Notice - June 14, 2021
Public Notice: Lower Spruce Wash Channel Resiliency, Coconino County, AZ, HMGP-5284-01-02 (PDF)
FEMA Final Public Notice - October 25, 2021
Public Notice: Lower Spruce Wash Channel Resiliency, Coconino County HMGP 5284-01-02 (PDF)
Protecting Your Home and Family
- Streets flood quickly! A car can float in as little as a foot of water. Do not attempt to cross flooded areas. Respect all traffic barricades.
- Know where your children are at all times, and do not let them play near channels, creeks or streams when water is rising.
- Please call 911 to report a flooding emergency.
- For street or right-of-way flooding concerns, please call Public Works (928) 213-2100.
- If you have private property flooding concerns, the Stormwater Management Section will investigate and may be able to help. Please contact the Stormwater Inspector at (928) 213-2474.
- Information regarding the Museum Fire flood area is available.
- Please do not leave trash cans, trash, or debris in any area subject to flooding. Items will float in floodwaters and clog storm drains and stream channels.
- If you are in the Museum Fire flood area do not remove sandbags. A "self-fill" sandbag station is available at Frances Short Pond at Aztec Street. Self-fill areas are not staffed, and residents will need to bring shovels to fill sandbags. Damaged sandbags can be disposed at the landfill. Do not put them in your garbage can.
- Contact your property insurance agent to see if a flood insurance policy would help you. Even if you're not in the mapped floodplain, you may be subject to flooding from local drainage.
- Talk to the Stormwater Section (928-213-2472) about protecting your house or business. There are ways to modify your building to minimize flood damage.
- The City of Flagstaff operates a small network of radio-telemetered gauges that transmit rainfall and stream flow information in real-time (as it occurs).
- View forecasts, watches, and warnings issued by the National Weather Service for Northern Arizona.
Let's make this a safe monsoon season!
The City of Flagstaff Stormwater Section offers the following
additional flood hazard information and services:
- Flood Hazard Determinations
- Drainage Complaint Database
- Rain & Stream Gauges
- Flood Insurance Requirements
- Stormwater Pollution Prevention Plan
$30 unless within 100 feet of a flood zone, then free of charge. Call Ed Schenk at: (928) 213-2470.
If you have a drainage problem, we will collect your information and investigate. Our investigations include site visits and discussions with you on what steps you can take to correct the problem. If you have a drainage problem, please contact Chris Palmer at 928-213-2474, or email Chris Palmer.
The City of Flagstaff operates a small network of radio-telemetered gauges that transmit rainfall and stream flow information in real-time (as it occurs). If you would like to see this information for the various locations in the City, plus the rain gauges in the Schultz burn area, go to: Rainfall and Stream Gauge Data.
Advice on basic flood insurance requirements, but we will defer to the flood insurance providers. We have information on older FIRM's and Floodway maps that may help properties qualify for Preferred Risk Policies. Find information on Grandfathered Properties. Go to FEMA's flood insurance page to learn more.
Advice on ADEQ Stormwater Pollution Prevention Plan requirements and general erosion control requirements for development. Please contact Chris Palmer at 928-213-2474, or email Chris Palmer.
We have limited information not on the FIRM including the following:
a. Detailed reports, changes to flood hazard boundaries, calculations and hydraulic models related to LOMR's, CLOMR's and other flood studies.
b. Emergency Action Plans for Dams in the Community and the Coconino County Multi‐Hazard Mitigation Plan.
c. LOMA's, LOMR‐F's, Elevation certificates
d. Cumulative substantial improvements, assessor's office value, and details for property appraisals.
e. Administrative floodplains (floodplains not yet recognized by FEMA but regulated as such) including Steves Boulevard Wash administrative floodplain from Route 66 to its confluence with the Rio de Flag.
f. Older FIRM and Floodway maps as early as 1983.
g. Protected natural functions open space floodplains through the City Rural Floodplain ordinance and Picture Canyon reserve. View the Rural Floodplain Map. Find our Picture Canyon Preserve information/map.
h. Approximate flood depths using City 2' contours derived from aerial LiDAR surveys
i. Old building permit information
j. Historic flooding information including flood photos and logs of flooding in a particular area.
k. Detailed forest fire burn scenario maps and associated flood maps in the Dry Lake Hills region.
l. Alluvial Fan Flood Hazard area mapping created from historic documentation of uncertain drainage channels."