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UPDATE: Floods and road closures

Road Closed.jpg
Posted at 2:09 PM, Jan 09, 2023

The National Weather Service has issued a FLASH FLOOD WARNING for SLO County FROM 5:10 A.M. TO 1:00 P.M. today (3/10)

This is a dangerous and life-threatening situation.

Do not attempt to travel unless you are leaving an area subject to flooding or evacuation.

Highway Info:

Highway 135 was closed just after 6 a.m. Friday from Bell Street to Harris Grade due to mud and flooding.

US 101 NB is closed at Winchester Canyon Rd. due to debris flow north of that location.

US 101 NB is closed at Mariposa Reina due to debris flow north of that location.

Highway 101 is also closed between Highway 150 in Carpinteria to Cabrillo Boulevard in Santa Barbara due to flooding. The northbound lanes of Highway 101 in the Avila Beach Dr. area in San Luis Obispo County is also closed due to flooding.

SR 154 is closed at SR 246 and SR 192 due to multiple rockslides in Santa Barbara County. Use I-5 is an alternate route.

The southbound lanes of hwy17 are closed at Glenwood Drive in Santa Cruz County due to a downed tree.

Highway 1 is closed in both directions from Education Drive to Yerba Buena Street in San Luis Obispo County due to roadway flooding.

The southbound on-ramp to Hwy. 1 from Hwy. 41 near Morro Bay is also closed due to flooding.

Southbound US 101 reduced to one lane due to flooding on right bypass lane from Mussel Shoals to Main St. in Ventura.

City info:

Paso Robles:

  • Adelaida Road And Nacimiento Lake Drive has a tree down in the road.
  • Hwy41 is closed from Shandon to Creston due to flooding.
  • Cripple Creek is now open
  • North Bethel Rd, is now open
  • San Marcos from HWY 101 to Nacimiento Lake Dr - Closed to through traffic.
  • SR41 is closed at Cripple Creek Road due to flooding.


  • Hwy41 is closed near Bear Ridge Road to the Atascadero Creek Bridge in northern San Luis Obispo County due to mudslide activity.
  • Hwy41 is closed from Los Altos Road to San Gabriel Road in Atascadero due to rockslides.
  • Southbound hwy101 is closed at Santa Rosa Road due to flooding.

As of 6p.m. these roads are closed:

  • Southbound El Camino Real at San Rafael
  • Southbound at El Camino Real at Viejo Camino to Santa Barbara
  • Santa Barbara from El Camino Real at San Antonio Road (right by Hwy. 101), but still allows access to San Antonio
  • San Gabriel at Hwy 41
  • Portola at Hwy 41
  • Carmelita at Piedras Altos and Curbaril at Carmelita
  • Southbound Hwy 101 offramp at Hwy 41
  • Curbaril at Amapoa; Amapoa from Curbaril to Portola
  • Viejo Camino from El Camino Real to Santa Barbara
  • Atascadero Avenue at Ortega
  • Castano between Curbaril to Maleza
  • Halcon River Crossing
  • Via Bridge
  • 6390 Flores – a tree has just been cleared
  • Santa Cruz at Santa Ana
  • 4900 Block of Traffic Way


  • S. El Pomar from Homestead to Rancho closed due to mud slide.
  • Peachy Canyon Road on the 2700 block is flooded.
  • Redondo Ln -is closed due to culvert wash-out.


  • Flooding was reported on HWY 1 at Main Street.
  • Tree down across the road on the 1700 block of Sandown Place.

San Luis Obispo:
NOTE: With 101 closed at Avila Bay Drive North Bound so anyone wanting to head north needs to take Price canyon Road around through SLO.

  • Hwy 101 and marsh street off-ramp closed due to flooding.
  • Hwy 101 and Madonna Road off-ramp flooded.
  • State Route 1 and Kansas avenue lane 2 are closed due to flooding.
  • Los Osos Valley Road and West Foothill Boulevard flooded.
  • Avila Beach Dr. between Ontario and San Luis Bay Dr. closed.
  • San Luis Bay Dr. from the 101 to Monte Rd. closed.
  • San Luisito Creek Rd is closed due to culvert wash-out.

Avila Beach:

  • Northbound hwy101 is closed at Avila Beach Drive due to flooding.


  • State Route 1 and Division Street to Oso Flaco Lake Road is closed.
  • Bee St. is closed.


  • Mud and rock blocking both lanes on Santa Rosa Road and Avenue of the Flags.

Los Alamos:

  • State Route 135 and Harris Grade Road flooded.

Santa Maria:

  • Bull Canyon and Cuyama HWY flooded.
  • Intersection of Suey Road & Palisades is closed.
  • Eastbound Jones at Bradley Road is closed.
  • Black Road is closed from Betteravia Road to Main Street/Hwy 166.

Arroyo Grande:

  • Valley Rd at Castillo Del Mar will close, with a detour routing traffic from Hwy 1 to Halcyon.
  • El Camino Real from Oak Park to Robles Rd is closed.