Detwiler Fire, CA Update: 108 Buildings Burned, 15% Contained, 74000-Acres Burned, 2 Towns Evacuated

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Detwiler fire near the town of Mariposa, CA on July 18, 2017. image: getty/ap

The Detwiler fire burning just west of Yosemite National Park is proving to be a serious threat to humans and structures a like.

Thousands have been evacuated from Mariposa County, CA, roads are closed all over the region, and both Yosemite & Tahoe are filling up with the smoke from this fire.

California’s 200% of average precipitation winter may be to blame.

 “The wet winter has promoted a grass crop that we haven’t seen for decades. This fire started in the grass and has moved into what we call brush patches, which cover the mountains in this area. This brush is very receptive to the fire as well.” – CAL Fire Information Officer Scott Mclean

Detwiler Fire Stats:

  • CA governor declared ‘state of emergency’ for this fire on July 18th, 2017
  • 74,083-acres burned
  • 15% contained
  • 58 residences burned, 60 minor structures burned, 11 residences damages and 6 minor structures damaged
  • 15,00 structures threatened
  • 3,834 personnel fighting this fire
  • Towns of Mariposa & Coulterville evacuated
  • 0 injures
  • Located just west of Yosemite National Park, CA in Mariposa county
Detwiler fire as of 9am PST today.



Detwiler Fire Incident Information:
Last Updated: July 21, 2017 7:30 am
Date/Time Started: July 16, 2017 3:56 pm
Administrative Unit: CAL FIRE Madera-Mariposa-Merced Unit
County: Mariposa County
Location: Detwiler Rd and Hunters Valley Rd, 2 miles east of Lake McClure
Acres Burned – Containment: 74,083 acres – 15% contained
Structures Threatened: 1,500
Structures Destroyed: 58 residences, 60 minor structures, 11 residences damages and 6 minor structures damaged
Evacuations: Evacuation Orders – Ben Hur Rd. from Buckeye Rd. to Hwy 49-S, all of Mariposa Town, HWY 140 from 49-N to East Whitlock Rd. and ALL feeder roads, East Whitlock Rd from HWY 140 to Mosher Rd. and All feeder roads to the West, Hornitos Rd. from HWY 140 to Mount Gaines Rd. and ALL feeder roads on both side (This includes the community of Whispering Oak), West Whitlock from 49-N to Mosher Rd. and ALL feeder roads on both sides. Colorado Rd. from E. Whitlock to Rancheria Creek Rd. and ALL feeder roads. Rancheria Creek Rd, ALL of Sherlock Rd, ALL of Telegraph Rd, Bull Creek Rd from Greeley Hill Rd to the Merced River, Old Yosemite Rd to the Five Corners intersection and River Rd from Briceburg to Northfork Falls. Evacuation Orders – North County: HWY 49-N from Schilling Rd. to Oakridge Rd. and ALL feeder roads, HWY 132 from HWY 49-N to Windy Point, the town of Coulterville, Dogtown Rd. from Greeley Hill Rd. to Texas Hill Rd., ALL of Texas Hill Rd., Schilling Rd from HWY 49-N to Texas Hill Rd ,Greeley Hill Rd. from Dogtown Rd. (Coulterville) to Dogtown Rd. near Bowers Cave. All roads between Greeley Hill Rd and Texas Hill Rd.Evacuation Advisories NORTH COUNTY: HWY 49N from Oakridge Rd. to the County Line. All roads north of Greeley Hill Rd. to the Mariposa County line, to include Dexter Rd., Cueno Rd., Smith Station Rd. to HWY 120 and ALL feeder roads, Buck Meadows Rd. north of Greeley Hill Rd. to HWY 120, Old Yosemite Rd and Bull Creek Rd.

SOUTH COUNTY: Hwy 49-S from Ben Hur Rd to Indian Peak Rd and ALL feeder roads, Ashworth to Silver Lane and ALL feeder roads, Silver Bar to Ashworth and ALL feeder roads, Indian Peak to Oak Grove Rd and ALL feeder roads, Oak Grove Rd from Miwuk Rd to Oak Grove School Rd and ALL feeder roads, Allred Rd from 49S to Morningstar Lane and ALL feeder roads, Morningstar Lane to Carlton Rd and ALL feeder roads, Carlton Rd to Silva Rd and ALL feeder roads, Silva Rd to Hwy 49 South and ALL feeder roads, Bear Valley Rd- All homes from Exchequer Rd to Hornitos Rd, Hornitos Town Area, HWY 140 from Briceburg to E. Whitlock, Colorado Rd from HWY 140 to Rancheria Creek Rd., Oak Rd and Yosemite Oak Rd.

Evacuation Shelters EV Free Church, 50443 School Rd, Oakhurst, CA
Sierra Vista Presbyterian, 39696 HWY 41, Oakhurst, CA
Cesar Chavez Middle School, 161 Plainsburg Rd, Planada, CA
Mountain Christian Center 40299 HWY 49, Oakhurst , CA
Sonora Fair grounds, 220 Southgate, Sonora, CA North Fork Ranchera Community Center, 56900 Kunigib Rd, North Fork, CA 93643

Small animals: Sierra Vista Presbyterian Church at 39616 Hwy 41, Oakhurst, CA.; Cesar Chavez Middle School at 161 Plainsburg Road, Planada, CA. (559)-433-9663; Sonora Fairgrounds at 220 Southgate Rd, Sonora, CA., Oakhurst Community Center, 39800 Fresno Flats Rd, Oakhurst, CA 93644
Large animals: Coarsegold Rodeo Grounds, 44777 Rodeo Grounds Ln, Coarsegold, CA. (559)-994-2794; Horsemen Association, 499 Nevada St, Merced, CA (209)-354-9437

Mariposa County Sheriff’s Office Evacation and Road Closure Updates via Nixle

Road Closures: HWY49N from Smith Rd to Oakridge Rd., Bear Valley Rd at Exchequer Rd., Hornitos Rd from Mt Gaines to HWY 140, Mt. Gaines Rd at No.9 Rd., HWY 140 from Triangle Rd to School House Rd., 49S at Triangle Rd., HWY 132 at Horseshoe Bend, Ben Hur at HWY 49S, HWY 140 at Yaqui Gulch Rd., E. Whitlock at HWY 140, Colorado Rd at Rancheria Creek, Greeley at Dogtown Rd to the end of Greeley Hill and Dogtown, Smith Station Rd and Greeley Hill Rd.
Cause: Under Investigation
Cooperating Agencies: Mariposa County Sheriff’s Office, CAL OES, Red Cross, PG&E, CHP, Mariposa County Public Works, CALTRANS, Bureau of Land Management, Mariposa County Fairgrounds, Mariposa County Fire, California Dept. of Corrections and Rehabilitation.
Total Fire Personnel: 3,834
Total Fire Engines: 478
Total Fire Crews: 68
Total Airtankers: Yes
Total Helicopters: Yes
Total Dozers: 87
Total Water Tenders: 61
Incident Management Team: CAL FIRE Incident Management Team 4
Long/Lat: -120.21321/37.61757
Conditions: Firefighters worked through the night establishing and reinforcing containment lines. Much of the fire is steep and rugged with areas difficult to access. Damage assessment crews have completed approximately 80% of their assessment of damaged and destroyed buildings. The weather is expected to be hot and dry with winds out of the West-Northwest. The fire continues to challenge firefighters in drought stricken chaparral and in an area of severe tree mortality. Power lines supplying power to Yosemite National Park continue to be threatened.We ask for the public to heed all evacuation orders and warnings. For information about how to prepare for evacuation please visit:

A Community Meeting will be held this evening in Merced at the Merced Theatre, 301 West Main Street, Merced, CA 95340.

Phone Numbers (844) MMU-FIRE (Fire Information Line )
Phone Numbers (562) 619-7467 (Media Line )


The Detwiler Fire, Tuesday afternoon. Photo: Robert D. Barnett, CAL FIRE Deputy Chief of Training & Safety, Northern Region C205.

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