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Hughes Pit: 2 reportable incidents Metal/Non-Metal

Controlled by Granite Construction Inc
Pima County, AZ  ·  Abandoned
MSHA Mine ID: 0200678

Hughes Pit has had no fatalities among 2 reportable incidents since 1990.

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Fatalities
0
Total incidents
2
Years on record
1990–1993
Latest incident
May 1993
Ownership history
  1. New Pueblo Constructors Inc 1978 to 1980
  2. Granite Construction Company 1980 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
1995 8
1994 22
1993 20
1992 19
1991 20
1990 21
1989 19
1988 18
1987 17
1986 26
1985 30
1984 19
1983 18
Source: MSHA quarterly employment and production, updated weekly; years before 2000 come from MSHA's archived Part 50 employment files.

Hughes Pit sits in Pima County, Arizona, where the Census mining category is 0.6% 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.
Pima County, Arizona · Population 1,049,947
0.6%
Mining share of county employment
$67,929
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

1993 · 1 incident

May 7, 1993 AZ · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator ELECTRICAL
Granite Construction Company · Flash burns (electric)

EMPLOYEE WAS ATTEMPTING TO SHUT DOWN GYRO CRUSHER CIRCUIT, THE CIRCUIT DID NOT DISCONNECT. THE EMPLOYEE THEN ATTEMPTED TO DISCONNECT A 30 AMP SEWITCH. WHEN HE THREW THE SWITCH A FLASH OCCURED.

1990 · 1 incident

November 12, 1990 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Granite Construction Company · Struck by flying object

EMPLOYEE WAS WELDING. DUST BLEW INTO EYES CAUSING CONJUNCTIVITIS REQUIRING MEDICAL TREATMENT.