I-15 Closed in Beaver Utah After Flooding July 20

Major flooding has closed Interstate 15 through Beaver, Utah, after water and debris crossed the highway on Sunday, July 19. A National Weather Service flood warning remains active through Monday evening, July 20, while officials report continued inundation, road closures and the effects of water moving downstream toward Minersville Reservoir.

Drivers should not treat the closure as a routine delay with a predictable reopening time. The practical decision is to check Utah’s live traffic system before reaching Beaver, follow the route directed by transportation or law enforcement officials, and avoid any local street that is covered by water or blocked for emergency work.

What the current flood warning confirms

The National Weather Service warning for Beaver County says major flooding and inundation are continuing in Beaver City. It specifically names I-15 among numerous roads that remain closed and says local media have reported water rescues.

The warning also says flooding will continue developing downstream toward Minersville Reservoir. That matters for travelers because the operational problem is broader than one wet patch on the interstate, and secondary roads may be needed by emergency crews or may face changing water conditions.

The alert is scheduled to remain in effect until 7:45 PM MDT Monday, but that time is not a promised highway reopening. A weather warning can expire, extend or change independently from a transportation closure, so drivers need a separate live road status check even after the weather headline ends.

Where I-15 was closed in Beaver

KSL reported from Beaver that floodwater breached the interstate near milepost 109 and that the highway was closed in both directions between mileposts 109 and 111. Utah Highway Patrol crews were using heavy equipment as the response continued Sunday night.

Beaver sits on the primary north to south corridor between Salt Lake City and Las Vegas, with I-70 joining I-15 north of town. A short closure segment can therefore affect long distance traffic well beyond Beaver, especially freight, RVs and national park road trips arriving from either direction.

Sunday’s local diversion instructions should not be assumed to remain valid throughout Monday. Floodwater, cleanup work and law enforcement access can shift quickly, so a route described earlier may close, reverse direction or become reserved for residents and responders.

How drivers should approach the closure

Open the UDOT Traffic map before committing to the final approach into Beaver. Check the incident layer, cameras where available and any closure note for the intended direction, then compare that information with electronic highway signs and instructions from officers on scene.

Do not leave I-15 for an unverified road simply because a navigation app shows movement. Consumer routing can lag an emergency closure, and a local road that appears shorter may cross low ground, active cleanup or a neighborhood under access restrictions.

If officials direct traffic through Beaver, stay on the marked route and expect slow movement around equipment and emergency vehicles. If no official route is open, stopping in a safe serviced location well before the closure is a better choice than joining a queue with limited fuel, food or turning space.

Southbound RV travelers who decide to pause farther from the incident can review Deep Arrival’s Cedar City RV parks guide for possible bases south of Beaver. Availability and road access still require live confirmation, and the guide does not replace UDOT or law enforcement directions.

Why the flooding became a highway emergency

The flood followed heavy rain over terrain affected by the Cottonwood Fire east of Beaver. Burned ground can shed water, ash, soil and debris rapidly, which helps explain why a storm away from the interstate can create dangerous flows through Beaver Canyon and across transportation routes downstream.

KSL reported that a diversion dam in Beaver Canyon was overtaken and that additional debris flow waves were expected on the Beaver River. The current NWS warning no longer describes only an immediate flash flood emergency; it describes continuing inundation that can remain in place after the heaviest rainfall passes.

This distinction is important for trip timing. Clearer skies or lighter rain near a driver’s location do not prove the highway is ready, because water and debris already moving through the drainage can continue affecting roads, bridges and cleanup operations later in the day.

What travelers should verify before moving

First, confirm whether I-15 is open in the intended direction and whether any restriction applies to large vehicles or trailers. Second, identify where the official detour begins, because discovering the closure at the last interchange can remove safer options available earlier on the route.

Travelers with a fixed check in, tour or flight connection should contact the next provider as soon as the closure threatens arrival time. A road emergency may justify flexibility, but each hotel, rental company, tour operator or airline applies its own rules and may ask for notice before the scheduled time.

Keep fuel above the normal minimum and carry drinking water before entering the affected corridor. Beaver officials also issued local water restrictions during the flooding, so travelers should not assume every local tap or service point is operating normally simply because a business appears open.

Reopening remains the key unknown

No verified reopening time appears in the current NWS warning or the local reporting used for this update. Crews must manage water, debris, pavement condition and safe traffic control, which means the highway can remain closed after visible water recedes.

Drivers should look for a dated UDOT or law enforcement update that names the direction, mileposts and any remaining restriction. A social post saying traffic is moving is not enough to establish that both directions are open to all vehicles or that the normal route has resumed.