Mining Incidents

Public Works Quarry #4: 2 reportable incidents Metal/Non-Metal

Controlled by Jefferson County - Co
Jefferson County, CO  ·  Abandoned
MSHA Mine ID: 0504039

Public Works Quarry #4 has had no fatalities among 2 reportable incidents since 1985.

Watch this mine

Email me when a new MSHA incident is filed at Public Works Quarry #4.

Fatalities
0
Total incidents
2
Years on record
1985–1987
Latest incident
May 1987
Ownership history
  1. Board Of County Commissioners 1985 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
1987 6
1986 5
1985 3
Source: MSHA quarterly employment and production, updated weekly; years before 2000 come from MSHA's archived Part 50 employment files.

Public Works Quarry #4 sits in Jefferson County, Colorado, where the Census mining category is 0.8% of county employment.

Local economic context
ⓘ County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Jefferson County, Colorado · Population 579,715
0.8%
Mining share of county employment
$107,800
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
No fatalities recorded at this mine.

Reportable incidents

2 on file

1987 · 1 incident

May 8, 1987 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech POWERED HAULAGE
Board Of County Commissioners · Struck by falling object

CLEANING ROCK F9OM CONVEYOR BELT FALLING ROCK GLANCED & STRUCK HIM BEHIND RT.EAR CAUSING LACERATION & BLEEDING HE WAS TAKEN TO A PHYSICIAN & RELEASED TO FULL DUTY

Show 1 earlier incidents

1985 · 1 incident

June 17, 1985 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Board Of County Commissioners · Struck by falling object

WHILE CHANGING BITS ON A LOADER BUCKET ONE OF THE BITS FELL ON THE INSTEP OF EMPLOYEES LEFT FOOT