Mining Incidents

Plymouth Meeting Quarry Metal/Non-Metal

Controlled by Heidelberg Materials AG
Plymouth Meeting, Montgomery County, PA  ·  Active
MSHA Mine ID: 3600052

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Fatalities
0
Total incidents
39
Years on record
2000–2025
Latest incident
Mar 2025
Compliance record
MSHA citations since 2000
172
citations
28
significant & substantial
$42,163
proposed penalties
$34,224
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 18,850 0 0 0.0
2025 Q3 6,218 2 0 321.6
2025 Q2 3,192 0 0 0.0
2025 Q1 10,693 3 1 280.6
2024 Q4 11,908 0 0 0.0
2024 Q3 16,697 1 0 59.9
2024 Q2 4,792 1 0 208.7
2024 Q1 9,115 0 0 0.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

39 on file

2025 · 1 incident

March 1, 2025 PA · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management SLIP OR FALL OF PERSON
Highway Materials LLC · Fall to the walkway or working surface

Employee was in Pit #3 of Plymouth Meeting Quarry to take pictures. EE was walking back to EE's vehicle and stepped on a rock while crossing 6' wide mud wash. The rock gave way, and the employee fell sideways. EE struck the left side of EE's head on a rock. Left ear was lacerated requiring stitches.

2024 · 2 incidents

September 20, 2024 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Highway Materials LLC · Over-exertion (Not Elsewhere Classified)

The employee was assigned to clean the magnet off one of the belts. Employee was using the JLG manlift to complete the task. Once the magnet was cleaned off, they lowered boom to ground and exited the basket. They were carrying bucket of tramp steel as they stepped out, they twisted their left ankle. Resulting in un-displaced fracture of left leg fibula.

August 21, 2024 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Highway Materials LLC · Fall from machine

Emp strapped a starter on a flatbed p/up & felt the need to climb onto flatbed to secure strap. Emp did this task with a co-worker. When done w/tie-down, emp went to the rear & went down forward on a step bumper, w/out handholds and missed the step and fell on side with right elbow, forearm and hip taking the impact

2023 · 1 incident

August 11, 2023 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Highway Materials LLC · Struck by flying object

Shop mechanic was changing oil filters on an Cat 775f in the shop. in an effort to loosen the filter with a ratchet wrench, they were pulling on the wrench when it slip off the filter and came toward them hitting them in the right side of the forehead.

2021 · 4 incidents

September 24, 2021 PA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Highway Materials LLC · Fall onto or against objects

Checking the coolant level on the 982M. To do this the hood is raised on the machine and the employee climbs onto the rear step and visually inspects the coolant tank. EE did so and while climbing down from the step EE slipped, landing on the ground on their feet. EE then moved backwards, tripping over a wheel chock on the ground and landed on top of the wheel chock on their back.

September 8, 2021 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Highway Materials LLC · Struck by flying object

EE was washing out under the secondary crusher with a hose. As EE was doing this, a large rock came off the secondary screen and struck EE in the right arm causing a fracture to the shaft of the right radius.

June 9, 2021 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech OTHER
Highway Materials LLC · Bodily reaction, (Not Elsewhere Classified)

Employee was bolting wear plates into a chute. When they stood up they felt a pop in right knee. EE told supervisor they would be fine. Came in next night and worked until about 11 pm, and told supervisor they wanted to get the knee looked at because it was still swollen. EE went clinic to be seen.

February 25, 2021 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Highway Materials LLC · Fall onto or against objects

While cutting I-beams, 1 emp. cutting had IE hold the beam as EE cut the bolts & letting the beam fall away. The beam came loose, IE pushed the beam & lost balance falling w/ the beam. They cut the beam loose, & partner said, LET IT GO. Losing balance, fell w/ the beam. IE hit knee on the tail support for the tail pulley conveyor. Laceration of R Knee.

2019 · 1 incident

December 10, 2019 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Highway Materials LLC · Struck by falling object

employee was removing the head nut from a cylinder as the nut came loose, it dropped on the workbench pinching the employees distal phalanx of the left middle finger between the bench and the head nut resulting in a minor fracture of the finger tip.

2018 · 3 incidents

September 11, 2018 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman OTHER
Highway Materials LLC · (Not Elsewhere Classified)

employee went to get a tool while working with others on screen performing maintenance. EE didn't return quickly and co-workers went to look for EE. EE was found on the catwalk disoriented, not knowing what happened and not knowing EE's name. an ambulance was called.

July 30, 2018 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Highway Materials LLC · Over-exertion in lifting objects

Twisted quickly while carrying 50 lb. bagged ANFO resulting in sprained spine.

February 9, 2018 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech ELECTRICAL
Highway Materials LLC · Contact with electrical current

On February 9th at approximately 10 AM, Employee was plugging in the hydraulic press in the shop at Plymouth in order to press out the "dog bone bushings" from a CAT 740 Articulated Truck. When the employee turned the plug into the outlet they received a shock. Individual was taken to urgent to be checked out.

2015 · 3 incidents

September 30, 2015 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Highway Materials LLC · Fall from headframe, derrick or tower

attempting to reach a float on the slurry tank, the emp. stretched across 2 beams w/out a harness & not able to hook into an anchor point. In the act lost his grip & fell to the ground, sprained his back & a few contusions due to the fall. Taken to the clinic, released on light duty & given percocet for pain. X-rays were taken. the employee will report to work tomorrow morning.

July 22, 2015 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Highway Materials LLC · Caught in, under or between (Not Elsewhere Classified)

Employee was putting a cutting edge on a loader bucket. Cutting edge slipped off floor jack, and pinched employee's fingers between cutting edge and the floor. Employee has a broken middle finger on left hand.

July 7, 2015 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Highway Materials LLC · Struck by falling object

Employee was washing out the tail pulley of the secondary discharge belt when a 6" rock fell off the secondary screen and hit his left thigh. Employee waited till 5 PM to tell his supervisor what had happened. Employee was sent to a medical faculty for evaluation. He was told that he had a contusion on his left thigh.

2014 · 1 incident

June 24, 2014 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Highway Materials LLC · Over-exertion in lifting objects

Employee was cleaning debris from catwalk when he felt a pop in back. Then mentioned he may have caused this injury previously on June 21st at 9:00 AM employee was moving parts and supplies into the new shop addition when he was walking backwards and tripped over a pallet, falling on his back. He did not report at the time. Employee returned to work with restrictions.

2012 · 3 incidents

April 16, 2012 PA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Highway Materials LLC · Struck by falling object

Employee was removing the components of a flop gate at the discharge of a secondary screen. Supporting pin moved causing the flop gate to drop 6 to 8 inches. Employee attempted to catch the piece pinching it between the gate and side of a chute.

April 16, 2012 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Highway Materials LLC · Struck by... (Not Elsewhere Classified)

Employee was hammering shaft to remove bearing. Sliver of metal broke off shaft and struck employee on the wrist. Sliver embedded 1/8 inch into skin. Sliver was removed by a doctor.

February 25, 2012 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Highway Materials LLC · Over-exertion in lifting objects

Miner was cleaning up a pile of build-up at a catwalk next to primary jaw crusher using a shovel. Employee felt twinge in his back that continued to worsen as shift progressed. Employee reported at next scheduled shift with severe pain. Employee suffered strained back, was given medication and therapy with lifting restrictions. Employee continued to work with restrictions.

2011 · 3 incidents

August 17, 2011 PA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Highway Materials LLC · Struck by falling object

Scalping screen overloaded causing blockage/spillage. Spillage of stone (1-2 inches, 1-2 lbs.) fell approx. 40 feet on to miner's left shoulder causing a contusion. Miner was at ground level. Employee was taken out of work by medical professionals.

January 21, 2011 PA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Highway Materials LLC · Fall to the walkway or working surface

Cold, icy conditions. Work areas were being de-iced. Employee was going to his haul truck when he slipped on a patch of ice and struck the back of his head. Employee was transported to hospital where he was diagnosed with a mild to moderate concussion.

January 10, 2011 PA · Metal/Non-Metal ledgeman/hand, quarry man SLIP OR FALL OF PERSON
Highway Materials LLC · Over-exertion (Not Elsewhere Classified)

Employee was coming into work walking on company parking lot. Conditions were dark and icy. Employee slipped on dark ice. Felt pain. Employee was taken to hospital for treatment. Employee was diagnosed with tear of lateral meniscus.

2010 · 2 incidents

October 4, 2010 PA · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant HANDLING OF MATERIALS
Highway Materials LLC · Over-exertion in lifting objects

Employee is a quarry QA/QC technician. Employee was shoveling and picking up buckets of stone when he began suffering chest pains. Employee thought it was heart attack and left site to report to ER. Was diagnosed instead with a strain of the intracostal muscles of the right ribs. Employee missed next scheduled shift due to injury and later placed on modified duty.

July 21, 2010 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Highway Materials LLC · Struck by... (Not Elsewhere Classified)

Employee was cutting conveyor to size for installation using straight edge and utility knife. Utility knife slipped off straight edge and cut employee along right index finger of ungloved hand. Cut required 9 stitches to close.

2009 · 3 incidents

December 11, 2009 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Highway Materials LLC · Over-exertion (Not Elsewhere Classified)

Employee was changing screens when he slipped on ice on catwalk, twisting his right ankle, causing a fracture.

October 26, 2009 PA · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management MACHINERY
Highway Materials LLC · Flash burns (welding)

Employee was helping to tack on steel bars to a steel plate. Employee was not wearing adequate eye protection and suffered a flash burn to the eyes.

August 2, 2009 PA · Metal/Non-Metal superintendent SLIP OR FALL OF PERSON
Highway Materials LLC · Fall to the walkway or working surface

Employee was moving pumps from a lower level of the quarry to a higher level due to heavy rain falls. Employee was wading in 2' of water to disconnect pump hoses and to rig pumps for the lift. Employee slipped on an unseen rock below the water. Fell to his right side. Attempted to stop his fall, his right arm suffering a right shoulder contusion.

2008 · 2 incidents

July 22, 2008 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman EXPLODING VESSELS UNDER PRESSURE
Highway Materials LLC · Struck by... (Not Elsewhere Classified)

EE driving Euclid R60, bringing sand to asphalt plant. After dumping, he heard a noise coming from left, rear tire area. He exited cab and saw a bulge forming in tire, turned to get away when tire burst. Was 10 to 15 feet away when tire burst forcing him to the ground breaking lower left leg. Another employee in area when tire blew suffered a ruptured eardrum.

July 22, 2008 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman EXPLODING VESSELS UNDER PRESSURE
Highway Materials LLC · (Not Elsewhere Classified)

Employee driving Euclid R60, bringing sand to asphalt plant. After dumping, employee heard a noise coming from left, rear tire area. Exited cab and saw a bulge forming in tire. Turned to get away when tire burst. Was 10 to 15 feet away when tire burst forcing employee to the ground breaking lower left leg. Another employee in area when tire blew suffered a ruptured eardrum.

2007 · 1 incident

January 22, 2007 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Highway Materials LLC · Fall to the walkway or working surface

Slipped and fell while walking.

2005 · 3 incidents

October 13, 2005 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Highway Materials LLC · Fall from machine

EMPLOYEE WAS OFF LOADING 5 GALLON CONTAINERA FROM PICK-UP TRUCK. SLIPPED OFF TAILGATE AND FELL 2 1/2 FEET.

June 7, 2005 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Highway Materials LLC · Caught in, under or between (Not Elsewhere Classified)

While installing R.F. mounted tire on wheel, the tire rim shifted and caught employee's finger between wheel and assembled tire.

February 25, 2005 PA · Metal/Non-Metal outside foreman, leadman SLIP OR FALL OF PERSON
Highway Materials LLC · Over-exertion (Not Elsewhere Classified)

Employee was picking up a crane outrigger pad. As he threw it up onto the crane deck, he slipped in the mud. The combination of slipping while throwing the outrigger pad strained his back muscles. Employee could barely move his back the next day and needed medical treatment.

2004 · 3 incidents

April 29, 2004 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Highway Materials LLC · Contact with hot objects or substances

While tramming slag off tailgate of dump truck a piece of hot slag blew into left ear.

January 16, 2004 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman OTHER
Highway Materials LLC · Struck by... (Not Elsewhere Classified)

WIND BLEW PICK-UP TRUCK AND DOOR CLOSED ON EE'S FINGER.

2003 · 1 incident

November 28, 2003 PA · Metal/Non-Metal truck driver SLIP OR FALL OF PERSON
Highway Materials LLC · Caught in, under or between a moving and a stationary object

EE CLIMBING DOWN LADDER OF 85 TON TRUCK RING FINGER CAUGHT IN STEP AND CUT EE S FINGER.

2001 · 1 incident

March 8, 2001 PA · Metal/Non-Metal truck driver POWERED HAULAGE
Highway Materials LLC · Struck against a moving object

EE WAS SAID TO HAVE HAD A MILD HEART ATTACK CAUSING HIM TO BLACK OUT. DURING THE BLACK OUT PERIOD, THE EE DROVE THE HAUL TRUCK THROUGH A ROCK BERM AND FLIPPING OVER 20 FEET BELOW THE HAUL ROAD . THE EE SUFFERED 2 FRACTURED NECK VERTABRA AND THREE BROKEN RIBS.

2000 · 1 incident

January 17, 2000 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Highway Materials LLC · Fall from machine

WORKER WAS CUTTING METAL PIPE WITH TORCH IN A 2' TRENCH. HE SLID OFF MATERIAL HE WAS KNEELING ON AND TWISTED BACK.