← MSHA accidents

FALL OF ROOF OR BACK

220080110032 · 12/29/2007 · Bridger Coal Company

Details

Degree of injury
ACCIDENT ONLY
Classification
FALL OF ROOF OR BACK
Accident type
Accident type, without injuries
Occupation
Activity
Injury source
Nature of injury
Body part
Days lost
0
Mine experience
— years

Operator

Controller (parent)
MidAmerican Energy Holdings Company; IDACORP
Operator
Bridger Coal Company
Mine
4801646

Narrative

The top is falling out 9? to 12? out in front of the tips shields #1 thru #5. Top falling high, started out at or about the horizon of the anchor point of the original bolts. #1 shield tipped over 1/3 to ? from being on its side. We installed ?I? beams, cable bolts, truss bolts, square sets, rok-props. However the fall kept flushing higher and higher.

Source

Authoritative
MSHA Open Government Data
Machine
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