Machine Gun Fire

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Machine Gun Fire
Location Herriman, Utah
Coordinates 40°25′41″N 112°4′56″W / 40.42806°N 112.08222°W / 40.42806; -112.08222Coordinates: 40°25′41″N 112°4′56″W / 40.42806°N 112.08222°W / 40.42806; -112.08222
Burned area 4,351 acres (18 km2)
Cause National Guard target practice
Motive Accidental
Machine Gun Fire is located in Utah
Machine Gun Fire
Location of fire within Utah.

The Machine Gun Fire or Camp Williams Fire was a wildfire in Herriman, Utah in 2010 that burned several dwellings. It was started by a mistake at a firing range by National Guard troops on a training exercise. 4,351 acres burned, approximately 1600 homes were evacuated, and 3 homes were destroyed.[1]


Live fire 50 caliber machine gun training had been scheduled at Camp Williams for the afternoon of Sunday, 19 September 2010. As is common in the area during the late summer, the east winds off of the Wasatch Mountains picked up in the afternoon. On the previous Thursday afternoon, the National Weather Service issued a Fire Weather Watch for Saturday and Sunday. On Friday afternoon, it upgraded the alert to a Red Flag Warning for the entire weekend.[2] Despite the dry conditions and base protocols that interdicted live-fire training during Red Flag conditions, a unit of the Utah National Guard commenced the live-fire exercise, although no highly flammable tracer rounds were used.[3] Shrapnel ignited the brush.[4] The Utah National Guard admitted full responsibility.[5]


After the fire was noted on the Camp Williams Machine Gun Firing Range, on Sunday afternoon, fire crews from the camp with the assistance of two Black Hawk helicopters attempted to put out the blaze, but were unsuccessful, and the fire, whipped by dry winds, burned northwestward across Oak Springs Hollow. Camp Williams firefighters notified the Utah Unified Fire Authority[6] who mobilized local fire agencies. However the fire crossed Shep's Ridge, and continued on to burn some houses on the edge of Herriman. The fire had burned over 4,351 acres and was fully contained by 24 September 2010.[5]

The Federal Emergency Management Agency (FEMA) authorized the use of federal funds in paying the costs of fighting the fire. FEMA approved the Fire Management Assistance Grant under a statute which provides reimbursement of up to 75 percent of the state's qualifying fire fighting costs.[7]

Evacuations continued into Tuesday September 21, 2010, although the number of homes under evacuation orders lessened to 450 homes. The same day, it was announced that the fire was 50 percent contained. Several residents were allowed back to their homes.[8]


  1. ^ a b "National Guard: 'We shot in the face of a red flag warning'". KSL-TV. Retrieved 30 August 2016. 
  2. ^ "National Guard: 'We shot in the face of a Red Flag Warning'" KSL Broadcasting Salt Lake City, Utah, 20 September 2010, archived here at Freezepage
  3. ^ This was the fifth fire in 15 years to escape the base, and each year numerous ones are extinguished by base fire-fighters. Smart, Christopher (20 September 2010) "Machine Gun Fire not the first at Camp Williams" Salt Lake City Tribune
  4. ^ Smart, Christopher (20 September 2010; modified 17 February 2011) "Machine Gun Fire not the first at Camp Williams" Salt Lake City Tribune; archived here by WebCite
  5. ^ a b Fox 13 Web Staff (24 September 2010) "Herriman Fire: Machine Gun Wildfire now 100 percent contained" Fox 13 News; archived here by WebCite
  6. ^ Unified Fire Authority is Utah’s largest fire agency, serving over 375,000 residents in the cities of Alta, Cottonwood Heights, Draper, Herriman, Holladay, Riverton, Taylorsville and the unincorporated areas of Sait Lake County. "Unified Fire Authority"
  7. ^ "FEMA Authorizes Funds To Help Fight Machine Gun Fire In Salt Lake County" Release Number: R8-10-013, Federal Emergency Management Agency, 19 September 2010; archived here by WebCite
  8. ^ Herriman Fire 50 percent contained, evacuations still remain in effect Fox 13 Salt Lake City, Utah.

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