Crane lifting conveyor belt off of trailer using cable rigging employee was guiding rigging crane struck overhead power line employee was electrocuted
US Aggregates-Flat Rock Plant: 1 recorded fatality Metal/Non-Metal
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.
Watch this mine
Email me when a new MSHA incident is filed at US Aggregates-Flat Rock Plant.
- Fatalities
- 1
- Total incidents
- 33
- Years on record
- 1986–2024
- Latest incident
- Dec 2024
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.US Aggregates-Flat Rock Plant has $150K in proposed MSHA penalties and $120K outstanding across 4 contested dockets.
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.ⓘ
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.ⓘ
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.- Settled 1 · 25%
- Vacated or withdrawn 1 · 25%
- Still open 2 · 50%
ⓘ
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.ⓘ
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.| Docket | Decision | Judge | Year | Proposed / upheld |
|---|---|---|---|---|
| LAKE 2016-0319 | Settlement | Feldman | 2017 | $1K → $850 |
| LAKE 2015-0632 | Withdrawal | Harner | 2016 | $100 → $0 |
| LAKE 2025-0119 | Decision pending | |||
| LAKE 2025-0166 | Decision pending |
ⓘ
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.Metal and nonmetal contaminants (personal samples)
ⓘ
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.
Last sampled: 2025-09-25
ⓘ
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.- Respirable dust, <.1mg9
- Nuisance dust, total, <1% Qtz6
- Nuisance dust, respirable, <1% Qtz5
- Quartz, respirable, >1% Qtz3
Show the individual readings (24)
| Date | Contaminant | Concentration | Limit | Conc / limit | Occupation |
|---|---|---|---|---|---|
| 2025-09-25 | Respirable dust, <.1mg | 0 | Utility Man | ||
| 2025-09-25 | Respirable dust, <.1mg | 0 | Screen/Scalper Operator | ||
| 2021-04-14 | Quartz, respirable, >1% Qtz | 0.36 | Dry Screen Plant Operator | ||
| 2021-04-14 | Unlisted Particulate, respirable, <1% Qtz | 0.48 | Utility Man | ||
| 2015-04-07 | Nuisance dust, respirable, <1% Qtz | 0.15 | 10 | 0.02 | Truck Driver |
| 2015-04-07 | Respirable dust, <.1mg | 0 | Crusher Oper/Worker | ||
| 2015-04-07 | Respirable dust, <.1mg | 0 | Truck Driver | ||
| 2013-05-09 | Respirable dust, <.1mg | 0 | Truck Driver | ||
| 2013-05-09 | Respirable dust, <.1mg | 0 | Truck Driver | ||
| 2013-05-09 | Respirable dust, <.1mg | 0 | Shovel Operator | ||
| 2008-10-01 | Respirable dust, <.1mg | 0 | Truck Driver | ||
| 2008-10-01 | Nuisance dust, respirable, <1% Qtz | 0.17 | 10 | 0.02 | Truck Driver |
| 2008-10-01 | Respirable dust, <.1mg | 0 | Truck Driver | ||
| 2007-06-27 | Nuisance dust, respirable, <1% Qtz | 0.17 | 10 | 0.02 | Crusher Oper/Worker |
| 2006-12-06 | Nuisance dust, total, <1% Qtz | 2.33 | 10 | 0.23 | Truck Loader |
| 2006-12-06 | Nuisance dust, total, <1% Qtz | 1.45 | 10 | 0.15 | Truck Loader |
| 2004-11-23 | Nuisance dust, total, <1% Qtz | 2.12 | 10 | 0.21 | Dry Screen Plant Operator |
| 2004-11-23 | Nuisance dust, total, <1% Qtz | 1.21 | 10 | 0.12 | Crusher Oper/Worker |
| 2003-08-19 | Nuisance dust, respirable, <1% Qtz | 0.41 | 10 | 0.04 | Crusher Oper/Worker |
| 2003-08-19 | Quartz, respirable, >1% Qtz | 0.31 | 2.51 | 0.12 | Truck Driver |
| 2003-08-19 | Quartz, respirable, >1% Qtz | 0.27 | 1.95 | 0.14 | Dry Screen Plant Operator |
| 2003-08-19 | Nuisance dust, respirable, <1% Qtz | 0.32 | 10 | 0.03 | Truck Driver |
| 2000-09-20 | Nuisance dust, total, <1% Qtz | 1.04 | 10 | 0.10 | Truck Loader |
| 2000-09-20 | Nuisance dust, total, <1% Qtz | 2.92 | 10 | 0.29 | Truck Loader |
US Aggregates-Flat Rock Plant recorded 0.00 reportable injury cases per 100 full-time workers in 2025.
ⓘ
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.| Year | total case rate | days-away | fatal |
|---|---|---|---|
| 2025 * | 0.00 | 0.00 | 0.000 |
| 2024 * | 7.23 | 0.00 | 0.000 |
| 2023 * | 0.00 | 0.00 | 0.000 |
| 2022 * | 0.00 | 0.00 | 0.000 |
| 2021 * | 7.83 | 7.83 | 0.000 |
| 2020 * | 0.00 | 0.00 | 0.000 |
| 2019 * | 0.00 | 0.00 | 0.000 |
| 2018 * | 6.88 | 6.88 | 0.000 |
- Cave Stone Inc 1950 to 1986
- Meshberger Stone Inc 1987 to 1989
- Heritage Aggregates, LLC 1989 to 2020
- US Aggregates Inc 2020 to 2026
- US Aggregates LLC 2026 to present
| Year | Employees |
|---|---|
| 2026 | 12 |
| 2025 | 12 |
| 2024 | 11 |
| 2023 | 12 |
| 2022 | 12 |
| 2021 | 10 |
| 2020 | 10 |
| 2019 | 11 |
| 2018 | 11 |
| 2017 | 12 |
| 2016 | 12 |
| 2015 | 11 |
| 2014 | 10 |
| 2013 | 14 |
| 2012 | 14 |
| 2011 | 15 |
| 2010 | 15 |
| 2009 | 15 |
| 2008 | 15 |
| 2007 | 15 |
| 2006 | 15 |
| 2005 | 15 |
| 2004 | 15 |
| 2003 | 15 |
| 2002 | 15 |
| 2001 | 16 |
| 2000 | 15 |
US Aggregates-Flat Rock Plant sits in Shelby County, Indiana, where the Census mining category is 0.0% of county employment.
ⓘ
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.ⓘ
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.| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2026 Q2 | 6,981 | 2 | 0 | 286.5 |
| 2026 Q1 | 4,812 | 0 | 0 | 0.0 |
| 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 | 4 | 4 | 628.7 |
| 2024 Q3 | 7,474 | 0 | 0 | 0.0 |
Show 98 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2024 Q2 | 7,118 | 6 | 0 | 842.9 |
| 2024 Q1 | 6,705 | 11 | 2 | 1640.6 |
| 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 | 2 | 0 | 245.2 |
| 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 | 3 | 0 | 382.9 |
| 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 recordedReportable incidents
32 on file (excluding fatalities above)2024 · 1 incident
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
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
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.
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
Repetitive motion, 25+ years of operating front end loader
2015 · 2 incidents
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
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
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
Inundation of the pit and production operations. There are no injuries.
2005 · 3 incidents
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.
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.
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
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.
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
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
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
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
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
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
EMPLOYEE WAS WORKING ON 988B CAT LOADER. HE WAS HEATING & MENDING STEEL & A FOREIGN OBJECT FLEW BEHIND HIS SAFETY GLASSES & INTO HIS EYE.
EMPLOYEE WAS USING A UTILITY KNIFE TO CUT ASIDE BELT ON THE CONVEYOR. THE KNIFE SLIPPED OFF THE BELT AND STUCK EMPLOYEE'S LEG.
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
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.
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.
LIFTING PIPE FROM GROUND TO THE DOOR OF THE BINS PULLED MUSCLE.
1988 · 2 incidents
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
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
EMPLOYEE WAS SH2VELING DIRT WHEN A SUDDEN UNSET BACK PAIN CAME ONE.
EMPL RECD BACK 8TRAIN DRIVING HAUL TRUCK.
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
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
USING A ROPE WI7H A PIPE TO KNOCK OUT A ROCK SO HE COULD PLACE DYNAMITE IN HOLE