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High Water 2023
Left: Second weir under construction on the V-line canal below Diversion Dam. Right: Community youth place sandbags at a home on the Carson River as part of Global Youth Day of Service on April 22.
Flood Modeling Maps
Modeling maps depicting suggested flood areas along the Carson River if uncontrolled water tops Lahontan Dam. Flood areas depicted by color at 1,000 cubic-feet-per-second (cfs) intervals from 2,000-5,000 cfs flowing over the dam into the Carson River.
Blue is current non-flood 1,000 cfs in Carson River.
Maps are large files, so we suggest zooming in to magnify a particular area. This is only modeling and many things can effect flow, including debris not accounted for through Lidar.
Interactive Map
PDF Maps:
Map 1: Diversion Dam to Trento Lane
Map 2: Carson Cut-off to Hillsboro Blvd
Map 3: Roberson Lane to Taylor Street
Map 4: Arundell Lane to Crook Road
Map 5: Moody Lane to Sagouspi Road
Map 6: Lovelock Highway to Indian Lakes Road
County Announcements
- Update on Local High-Water Mitigation Projects - May 12, 2023
- Interactive Map Available, Printed Maps on Walls in County Administration Building - April 24, 2023
- Second Town Hall Meeting on April 13 - April 11, 2023
- High-Water Operations Continue - April 6, 2023
- Local Youth to Fill and Place Sandbags for Seniors, Disabled Living on the Carson River - April 5, 2023
- Town Hall Meeting on March 23 at 3 p.m.; local officials to discuss high water mitigation efforts - March 22
- High Water Call Center Established - March 17
- County Offers High Water Safety and Preparation Tips - March 13
- Ensure Insurance Policies Are Current - March 10
- High-flow in Carson River Due to Water Releases from Lahontan Reservoir - March 8
- High Water Operation Underway - March 6
- County Declares Emergency To Prepare for Potential Flooding - March 2
Helpful Links/Information
- Current County Road Closures:
- FEMA Flood Map for local area
- Lahontan Reservoir water level
- National Flood Insurance Program - English
- National Flood Insurance Program - Espanol
- National Weather Service - Reno
- Nevada Division of Emergency Management
- Sandbags - as of May 22: available for pick-up Mondays from 1-4 p.m. Please contact the Call Center at (775)867-5923 (or email: highwater2023@churchillcountynv.gov) with any questions. Leave a message and staff will return your call/email.
- SNOTEL - snow water equivalent measurements
- TCID Flowrates
Additional Resources
Town Hall on April 12
- Link to April 13 Town Hall recording (audio issues make some speakers difficult to hear).
Town Hall on March 23
- Link to video of High Water/Spring Thaw Town Hall meeting on March 23
- High Water/Spring Thaw Town Hall slide presentation - March 23
- Town Hall takeaways (from March 23) - March 29, 2023
Frequently Asked Questions - as of March 27, 2023