Mining Incidents

US Aggregates-Flat Rock Plant Metal/Non-Metal

US Aggregates LLC · Surface
Controlled by The Heritage Group
Flat Rock, IN, Shelby County, IN  ·  Active
MSHA Mine ID: 1200016

US Aggregates-Flat Rock Plant has $150K in proposed MSHA penalties and $120K outstanding across 4 contested dockets, plus health sampling and the full incident record.

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Fatalities
1
Total incidents
33
Years on record
1986–2024
Latest incident
Dec 2024
Compliance record
MSHA citations since 2000
140
citations
33
significant & substantial
$149,560
proposed penalties
$28,802
paid to date
19% of proposed penalties paid to date, a $120,758 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
80
inspections on record
1,674
inspection hours
8.4
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
140 citations across 1,674 inspection hours.
Source: MSHA inspections data, updated weekly.

US Aggregates-Flat Rock Plant has $150K in proposed MSHA penalties and $120K outstanding across 4 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$150K
proposed penalties
$149K
current assessed
$29K
paid to date
$120K
outstanding
137 assessments are final orders; 4 contested dockets.
As of the most recent assessment on 2026-05-06.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 7,248 0 0 0.0
2025 Q3 8,492 0 0 0.0
2025 Q2 7,285 0 0 0.0
2025 Q1 6,127 2 0 326.4
2024 Q4 6,362 7 6 1100.3
2024 Q3 7,474 0 0 0.0
2024 Q2 7,118 10 0 1404.9
2024 Q1 6,705 11 2 1640.6
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 7,351 0 0 0.0
2023 Q3 8,675 0 0 0.0
2023 Q2 8,565 1 0 116.8
2023 Q1 7,281 8 3 1098.8
2022 Q4 8,209 0 0 0.0
2022 Q3 7,257 0 0 0.0
2022 Q2 7,603 5 0 657.6
2022 Q1 6,300 0 0 0.0
2021 Q4 6,950 2 0 287.8
2021 Q3 6,907 0 0 0.0
2021 Q2 6,885 5 3 726.2
2021 Q1 4,793 0 0 0.0
2020 Q4 5,929 1 0 168.7
2020 Q3 6,642 0 0 0.0
2020 Q2 7,070 2 0 282.9
2020 Q1 5,517 0 0 0.0
2019 Q4 5,855 3 1 512.4
2019 Q3 6,715 0 0 0.0
2019 Q2 7,567 3 0 396.5
2019 Q1 6,193 0 0 0.0
2018 Q4 6,126 1 0 163.2
2018 Q3 7,697 0 0 0.0
2018 Q2 8,179 0 0 0.0
2018 Q1 7,088 5 3 705.4
2017 Q4 8,631 1 0 115.9
2017 Q3 7,933 0 0 0.0
2017 Q2 8,004 0 0 0.0
2017 Q1 6,454 0 0 0.0
2016 Q4 7,705 2 0 259.6
2016 Q3 8,158 3 0 367.7
2016 Q2 7,058 0 0 0.0
2016 Q1 6,307 5 4 792.8
2015 Q4 7,497 0 0 0.0
2015 Q3 6,263 0 0 0.0
2015 Q2 6,588 5 1 759.0
2015 Q1 5,249 0 0 0.0
2014 Q4 5,973 0 0 0.0
2014 Q3 6,797 0 0 0.0
2014 Q2 6,264 1 0 159.6
2014 Q1 2,070 0 0 0.0
2013 Q4 4,818 1 0 207.6
2013 Q3 8,070 0 0 0.0
2013 Q2 8,087 2 0 247.3
2013 Q1 7,165 1 0 139.6
2012 Q4 7,898 0 0 0.0
2012 Q3 7,950 3 1 377.4
2012 Q2 7,347 0 0 0.0
2012 Q1 4,557 2 0 438.9
2011 Q4 6,835 0 0 0.0
2011 Q3 7,800 0 0 0.0
2011 Q2 7,770 0 0 0.0
2011 Q1 7,193 2 0 278.0
2010 Q4 7,501 7 3 933.2
2010 Q3 8,422 3 0 356.2
2010 Q2 7,627 0 0 0.0
2010 Q1 6,643 4 1 602.1
2009 Q4 7,915 0 0 0.0
2009 Q3 7,821 0 0 0.0
2009 Q2 7,509 0 0 0.0
2009 Q1 6,538 0 0 0.0
2008 Q4 8,426 0 0 0.0
2008 Q3 8,981 1 0 111.3
2008 Q2 7,931 0 0 0.0
2008 Q1 7,835 4 1 510.5
2007 Q4 8,468 0 0 0.0
2007 Q3 8,881 0 0 0.0
2007 Q2 9,315 0 0 0.0
2007 Q1 8,405 0 0 0.0
2006 Q4 8,562 0 0 0.0
2006 Q3 9,046 2 1 221.1
2006 Q2 8,623 0 0 0.0
2006 Q1 7,909 0 0 0.0
2005 Q4 9,231 3 0 325.0
2005 Q3 9,475 0 0 0.0
2005 Q2 9,927 0 0 0.0
2005 Q1 7,494 0 0 0.0
2004 Q4 8,866 0 0 0.0
2004 Q3 9,966 0 0 0.0
2004 Q2 9,336 1 0 107.1
2004 Q1 7,218 1 0 138.5
2003 Q4 8,932 0 0 0.0
2003 Q3 10,882 6 0 551.4
2003 Q2 10,727 0 0 0.0
2003 Q1 7,093 3 0 423.0
2002 Q4 9,277 0 0 0.0
2002 Q3 10,224 4 2 391.2
2002 Q2 9,089 0 0 0.0
2002 Q1 7,703 0 0 0.0
2001 Q4 8,078 0 0 0.0
2001 Q3 8,695 0 0 0.0
2001 Q2 12,500 2 0 160.0
2001 Q1 7,582 0 0 0.0
2000 Q4 7,996 0 0 0.0
2000 Q3 8,199 3 1 365.9
2000 Q2 8,661 0 0 0.0
2000 Q1 8,236 0 0 0.0

Fatalities at this mine

1 recorded
May 8, 2024 IN · Metal/Non-Metal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider Fatality · ELECTRICAL
US Aggregates Inc · Contact with electrical current

Crane lifting conveyor belt off of trailer using cable rigging employee was guiding rigging crane struck overhead power line employee was electrocuted

Reportable incidents

32 on file (excluding fatalities above)

2024 · 1 incident

December 12, 2024 IN · Metal/Non-Metal utility man, shift tech, service/dump truck operator SLIP OR FALL OF PERSON
US Aggregates Inc · Fall onto or against objects

A miner was exiting the skid steer EE was operating when EE slipped and contacted a sharp angle on the manufacturer built fork attachment causing a laceration that needed stitches.

2021 · 1 incident

August 12, 2021 IN · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
US Aggregates Inc · Struck by falling object

Performing maintenance on catwalk of a shaker/screen that was broken down. EE walked under a belt & must have struck the shaker. A 4-6in rock somehow shifted & came down, striking EE's hard hat, then bouncing onto EE's glasses & nose. We just got confirmation of a fracture.

2018 · 2 incidents

July 14, 2018 IN · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Heritage Aggregates, LLC · Caught in, under or between a moving and a stationary object

While lowering the new housing tube into position, the employee's left index finger was smashed between the tube and the side sheet of the vibrating screen machine. Finger was lacerated but not fractured. six stitches.

January 18, 2018 IN · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Heritage Aggregates, LLC · Fall from scaffolds, walkways, platforms

Welding back side of hopper frame, EE was on one side of hopper, another EE on the other side of the hopper. There was frozen material build-up on catwalk of hopper and scrap steel in the area. EE slipped and fell to the ground.

2017 · 1 incident

November 15, 2017 IN · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator DISORDERS (REPEATED TRAUMA)
Heritage Aggregates, LLC · Over-exertion (Not Elsewhere Classified)

Repetitive motion, 25+ years of operating front end loader

2015 · 2 incidents

October 9, 2015 IN · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Heritage Aggregates, LLC · Fall from machine

Getting in/out of truck to load bins. Exiting truck, put foot down on what he thought was a step, but was fuel tank. As he attempted stepping to catwalk, his foot slipped, he fell down, hitting wrist on catwalk

September 9, 2015 IN · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Heritage Aggregates, LLC · Struck by falling object

Replacing a return roller. While repositioning the roller, it slipped off the pin, fell to the frame, striking finger. Right 4th finger distal phalanx fracture.

2014 · 1 incident

September 17, 2014 IN · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Heritage Aggregates, LLC · Struck by... (Not Elsewhere Classified)

Using knife to cut a notch in belt to replace a belt scraper. He drew knife towards his body, knife slipped & cut him in upper right leg. Treated at Occ Health, sutures received and removed. No work missed.

2008 · 1 incident

2005 · 3 incidents

October 26, 2005 IN · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Heritage Aggregates, LLC · Caught in, under or between two or more moving objects

Employee was moving rocks in the muck pile to find the tooth of the shovel bucket. Employee had a rock in his hand and another rock rolled down on his hand smashing his left hand between the two rocks. Employee received a contusion to his left hand. Employee is to wear a splint but is doing his regular job.

September 7, 2005 IN · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Heritage Aggregates, LLC · Fall to the walkway or working surface

Employee filled the truck with fuel and was walking to fill out the fuel ticket and tripped over the fuel hose causing him to fall and as he fell he wrenched his left elbow and shoulder. He received a strain to the elbow and shoulder. He is restricted.

June 15, 2005 IN · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Heritage Aggregates, LLC · Struck by... (Not Elsewhere Classified)

Employee was cutting a side belt for the conveyor. He was using a box cutter knife. The kinfe slipped and employee cut his left index finger. Six stitches were required. There is no lost or restricted time.

2001 · 2 incidents

November 5, 2001 IN · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Heritage Aggregates, LLC · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS WORKING ON THE BIN. THE BIN HAD BRIDGED UP AND EMPLOYEE WAS HITTING THE SIDE OF THE BIN WITH A HAMMER. EMPLOYEE HIT THE CROSS-BRACE OF THE BIN WITH THUMB & SMASHED HIS RIGHT THUMB WITH THE HAMMER HANDLE. SIX SUTURES WERE TAKEN & HE WAS RESTRICTED.

September 24, 2001 IN · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Heritage Aggregates, LLC · Struck by flying object

EE WAS TAKING LUGNUT OFF HAULUP TRUCK. EE WAS USING A WRENCH. THE EXTENSION FROM THE BREAKER BAR TO SOCKET BROKE AND A PIECE OF THE WRENCH FLEW UP AND HIT HIS MOUTH BREAKING 10 TEETH. FRACTURE TO LEFT JAW BONE AND CUTTING THE INSIDE OUTSIDEOF HIS MOUTH. HAD 50 STITCHES INSIDE OF MOUTH AND 8 ON OUTSIDE.

1999 · 1 incident

January 12, 1999 IN · Metal/Non-Metal mine manager, mine foreman, mine owner MACHINERY
Heritage Aggregates, LLC · Struck by... (Not Elsewhere Classified)

EE WAS BUILDING A STEEL STRUCTURE. WHEN HE WAS OPERATING A GRINDER, APIECE OF METAL BOUNCED OFF HIS CHEEK & GOT INTO HIS EYE.

1997 · 1 incident

December 15, 1997 IN · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Heritage Aggregates, LLC · Struck by falling object

EMPLOYEE WAS PICKING UP ROCK & DROPPED ROCK ON HIS LEFT PINKY FINGER CAUSING A FRACTURE. EMPLOYEE DID NOT GO TO THE DOCTOR UNTIL 1-29-97.

1996 · 1 incident

January 23, 1996 IN · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Heritage Aggregates, LLC · Struck by flying object

EMPLOYEE WAS USING A GRINDER TO GRIND A PIECE OF SLAG OFF STEEL AND A PIECE OF THE SLAG GOT INTO HIS EYE. EMPLOYEE STATED HE HAD HIS SAFETY GLASSES ON.

1995 · 1 incident

November 27, 1995 IN · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Heritage Aggregates, LLC · Over-exertion in lifting objects

EE WAS LIFTING PIECES OF IRON AND ALLEGES HE STRAINED HIS SHOULDER. EE DID NOT RETURN TO WORK FROM 12-1-95 TO 12-11-95, DUE TO PERSONAL PROBLEMS AND ILLNESSES NOT BECAUSE OF THE ALLEGED INJURY .

1994 · 1 incident

June 24, 1994 IN · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant SLIP OR FALL OF PERSON
Heritage Aggregates, LLC · Fall to lower level, (Not Elsewhere Classified)

EMPLOYEE WAS UNDERNEATH BINS AND STEPPED OFF CATWALK AND STEPPED INTO A HOLE THAT WAS COVERED IWT MUD. EMPLOYEE TWISTED HIS ANKLE.

1990 · 3 incidents

August 9, 1990 IN · Metal/Non-Metal welder (shop) MACHINERY
Heritage Aggregates, LLC · Struck by flying object

EMPLOYEE WAS WORKING ON 988B CAT LOADER. HE WAS HEATING & MENDING STEEL & A FOREIGN OBJECT FLEW BEHIND HIS SAFETY GLASSES & INTO HIS EYE.

May 9, 1990 IN · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Heritage Aggregates, LLC · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS USING A UTILITY KNIFE TO CUT ASIDE BELT ON THE CONVEYOR. THE KNIFE SLIPPED OFF THE BELT AND STUCK EMPLOYEE'S LEG.

April 5, 1990 IN · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Heritage Aggregates, LLC · Struck by flying object

EMPLOYEE WAS CUTTING A PIECE OF STEEL. THE STEEL WAS IN A VICE. WHEN EMPLOYEE REMOVED THE PIECE OF STEEL FROM THE VICE A PIECE OF THE STEEL FLEW UP & HIT EMPLOYEE IN HIS EYE.

1989 · 3 incidents

October 16, 1989 IN · Metal/Non-Metal welder (shop) HANDLING OF MATERIALS
Heritage Aggregates, LLC · Struck by falling object

EMPLOYEE WAS WORKING ON A BRAKE DRUM. THE STEEL HUB WAS STANDING TO THE SIDE OF BRAKE DRUM, THE HUB FELL OVER AND FELL ON EMPLOYEE'S FOOT, AT IT WAS BEING LOWERED TO THE GROUND WITH A CHAIN FA LL.

May 19, 1989 IN · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Meshberger Stone Inc · Over-exertion (Not Elsewhere Classified)

EMPL SLIPPED ON WET FLOOR.IT HAD BEEN RIANING THAT DAY AND WHEN HE SLIPPED HE GRABBED RAILING TO KEEP FROM FALLING DOWN.FELT SUDDEN SHARP PAIN RADIATE FROM HIS BACK DOWN THROUGH LEGS.

February 24, 1989 IN · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Meshberger Stone Inc · Over-exertion in lifting objects

LIFTING PIPE FROM GROUND TO THE DOOR OF THE BINS PULLED MUSCLE.

1988 · 2 incidents

November 7, 1988 IN · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Meshberger Stone Inc · Rubbed or abraded

EMPLOYEE WAS WORKING ON ROOF OF THE LOADER CAB REPAIRING THE LOADER HE WAS ON HIS KNEES FOR A PERIOD OF TIME CAUSING HIS KNEE TO SWELL

August 6, 1988 IN · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Meshberger Stone Inc · Over-exertion in pulling or pushing objects

EMPLOYEE WAS PULLING HOSE UP & DOWN STRAIRS TOWASH OUT STONE FROM UNDER CRUSHED & SHAKER AS HE DID THIS SEVERAL TIMES A DAY HE RECEIVED PAIN IN HIS BACK

1987 · 4 incidents

October 30, 1987 IN · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Meshberger Stone Inc · Over-exertion in lifting objects

EMPLOYEE WAS SH2VELING DIRT WHEN A SUDDEN UNSET BACK PAIN CAME ONE.

September 23, 1987 IN · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
Meshberger Stone Inc · Struck against a moving object

EMPL RECD BACK 8TRAIN DRIVING HAUL TRUCK.

June 13, 1987 IN · Metal/Non-Metal welder (shop) HANDTOOLS (NONPOWERED)
Meshberger Stone Inc · Struck by flying object

EMP WAS UNDERNE5TH #1 SHAKER MOVING PADDLE WITH SLEDGE HAMMER TO MAKE ADJUSTMENTS & A PIECE OF STEEL CAME OFF PADDLE & STRUCK HIM IN THE UPPER NRIGHT LIP

May 22, 1987 IN · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman NONPOWERED HAULAGE
Meshberger Stone Inc · Over-exertion (Not Elsewhere Classified)

EMPLOYEE PLACED3A WHEEL BARREL UNDER A CONVEYOR BELT.IT HAD FILLED UP WITH SAND & LIME.EMPLOYEE WAS GOING TO DUMP IT OUT IT TIPPED TO ONE SIDE,HE TRIED TO CATCH IT & STRAINED HIS BACK.

1986 · 1 incident

May 27, 1986 IN · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDTOOLS (NONPOWERED)
Cave Stone Inc · Over-exertion (Not Elsewhere Classified)

USING A ROPE WI7H A PIPE TO KNOCK OUT A ROCK SO HE COULD PLACE DYNAMITE IN HOLE

For insurers, brokers, and safety consultants

The full compliance file on US Aggregates-Flat Rock Plant

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.