Mining Incidents

Arcosa Boulder Plant #1604Metal/Nonmetal

ARCOSA LWB, LLC · Surface
Controlled by Arcosa, Inc
Boulder, Jefferson County, CO · Active
MSHA Mine ID: 0504415
Fatalities
0
Total incidents
38
Years on record
2001–2025
Latest incident
Feb 2025
No fatalities recorded at this mine.

Reportable incidents

38 on file

2025 · 2 incidents

Bodily reaction, (Not Elsewhere Classified)

EE was working on a metal tube sleeve for protecting a sensor. Bending in awkward position felt tightness in lower back. Prescriptions prescribed.

Caught in, under or between a moving and a stationary object

Employee was making small adjustments to a v-belt drive system and pinched left index and middle finger between belt and sheave. Amputation of tip middle finger required.

2024 · 2 incidents

Struck against stationary object

Using a shovel to clear blockage on belt. it slipped and caused laceration on left index- 1 stitch and glue

Caught in, under or between a moving and a stationary object

Employee suffered lacerations to right hand while training a conveyor belt.

2023 · 4 incidents

Caught in, under or between a moving and a stationary object

Employee was exiting light duty pickup. Shut right middle finger in door. Stitches required from impact laceration.

Over-exertion (Not Elsewhere Classified)

Employee was working on a conveyor roller, stepped back into hole and strained left knee.

Fall from machine

Employee was entering a John Deere skid steer when the EE's left foot became caught between the bucket and the frame causing the employee to fall, twisting left knee.

Struck against a moving object

Employee was sitting in articulating haul truck and claims received cervical strain when being loaded.

2022 · 2 incidents

Caught in, under or between running or meshing objects

The employee was tasked with tapping the side of the hopper below the heat exchanger. After tapping on the hopper the employee opened the hatch the #2 rotary air valve and reached upward toward the valve where employee's right thumb inadvertently made contact with the vanes removing the tip of employee's thumb.

Fall from machine

Employee was walking down the drivers side walkway of an excavator, missed step with right foot falling to the ground. Fall caused broken ankle, femur and injured hip to right side of body. injured employee failed to use OEM handrails(3-points of contact) when lost balance.

2021 · 1 incident

Over-exertion in lifting objects

Repetitive Motion- removing old struck bags from dust collection baghouse, using repetitive motion for a approx. 4-6 hrs. Injury actually occurred on the 15th but was not reported until the 16th (next day).

2019 · 1 incident

Over-exertion in lifting objects

The employee was dumping a bucket of sampled material into the sample splitter when they felt a pain in their back area.

2018 · 1 incident

Struck against stationary object

Employee was cleaning underneath # 19 conveyor belt and catwalk. When employee raised EE's head, EE struck the catwalk structure with the head. Employee felt pain to the neck.

2017 · 6 incidents

Fall from ladders

Employee was climbing down a ladder located behind the #10 Belt. There was a two foot gap between the ground and the bottom rung of the ladder. Employee slipped off the bottom rung and hit lower back on a concrete wall located next to the ladder.

Over-exertion (Not Elsewhere Classified)

Employee strained left knee while turning off water valve in lime room.

Struck by... (Not Elsewhere Classified)

Employee was changing teeth on an excavator bucket. Employee struck employee's hand with a hammer.

Over-exertion in lifting objects

Employee was taking a sample from the kiln. Employee noticed a pain in right shoulder. Doctor placed employee on restrictive duty.

Caught in, under or between (Not Elsewhere Classified)

Employee was removing a drive chain from a gearbox with a pry bar. The pry bar slipped, smashing left index finger between the pry bar and gearbox. Employee's left index finger was fractured.

Fall to the walkway or working surface

Employee was cleaning snow off of #2 belt. As EE was walking back to the truck EE slipped on a snow packed surface. Employee broke a bone in left ankle as EE fell.

2016 · 1 incident

Fall onto or against objects

Employee was traveling up the stairs of #10 belt. While approaching the platform EE slipped and fell forward. EE cut EE's head on the metal head box of #10 belt.

2015 · 2 incidents

Struck by... (Not Elsewhere Classified)

Employee was removing the motor connection cover. He had a box knife on top of the connection cover. When he broke loose the cover he cut his left hand with the box knife.

Over-exertion in lifting objects

Employee was lifting a 5 gallon sample bucket of light weight aggregate. She felt a strain in her back. Doctor put her on restricted duty.

2014 · 1 incident

Fall from machine

Employee was checking the fuel on a welding machine, which is located on the back of a flatbed pick-up. Employee climbed up the driver's side of the bed, instead of the rear of the bed. Employee slipped on the pick-up's fuel neck, which is located on the bed. Employee tripped and fell to the ground, landing on his right foot. His ankle broke/dislocated upon impact.

2013 · 1 incident

Contact with electrical current

While trouble shooting a possible short in a wire that was located in a cable tray EE inadvertly caused the wire which had became bare to contact the cable tray and caused a shock.

2012 · 2 incidents

Over-exertion (Not Elsewhere Classified)

Years of repetitive motion caused Paresthesia Bilateral Carpal Tunnel Syndrome. Surgery is needed.

Over-exertion in lifting objects

EE was trying to move steel plate back into place when he felt a pull in lower abdomen area. Went to DR and diagnosed with a strained muscle. After further testing it was found there was a hernia in the abdomen area and that surgery would be needed. After diagnose was made surgery was put off until 4/20/12 by Doctor.

2011 · 2 incidents

Over-exertion (Not Elsewhere Classified)

EE was stepping up into basket of manlift when felt a pop in left knee. EE sought medical attention on 10-15-11, diagnosis - knee sprain. Pain contiuned EE returned to Doctor and a diagnosis of Torn Meniscus and that surgery was need on 11-15-11.

Over-exertion (Not Elsewhere Classified)

Employee failed to follow known safety policies and procedures while attempting to fuel a Hitachi 750 Excavator. Impairment is 2 broken elbows, full extent unknown at this time.

2008 · 2 incidents

Contact with hot objects or substances

Employee was watering down kiln dust. Employee decided to check the dust out closer and walked into some of the hot dust.

Struck by... (Not Elsewhere Classified)

Employee was using a grinder with a cutting disc to cut a piece of angle iron. As the Employee was finishing the cut, the disc caught part of the angle iron causing the disc to put across his left arm. An inspection of the grinder showed the ginder was guarded and all safety equipment ppe were being used.

2007 · 2 incidents

Over-exertion (Not Elsewhere Classified)

EE was closing doors on top of railcars, when his left foot slipped off the top of the door and twisted his ankle.

Over-exertion in pulling or pushing objects

EE was squatting to open an inspection plate to the coalmill, it would not open, therefore he started to tug harder and felt a pull in his lower back.

2006 · 1 incident

Caught in, under or between a moving and a stationary object

EE was cleaning grizzly bars off a hopper. The hopper is fed by a feeded belt. When reaching for a rock the EE's hand was pinched between the rock and the headpulley of the feeder causing lacerations to EE's right hand.

2005 · 2 incidents

Caught in, under or between (Not Elsewhere Classified)

EMPLOYEE WAS WORKING ON ARM OF LOADER. A PIN CAME OUT OF THE LOADER & THE ARM DROPPED. THE LOADER ARM TRAPPED THE EE'S HAND BETWEEN THE ARM & TIRE CAUSING A LACERATION ON HIS RT. THUMB.

Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS HANDLING A PIECE OF METAL WHEN IT SLIPPED & CUT HIS FINGER. THE CUT REQUIRED 6 STITCHES IN HIS RT. PINKY FINGER.

2002 · 2 incidents

Struck against stationary object

THE EE WAS CLEANING MUD OUT OF A SEALING AUGER WHEN HIS RIGHT INDEX FINGER CAME IN CONTACT WITH ONE OF THE BLADES ON THE AUGER, CAUSING A CUT JUST BELOW THE SECOND JOINT. THE AUGER WAS LOCKED OUT. THE CUT REQUIRED 5 STITCHES. THE EE WAS NOTWEARING HIS GLOVES AT THE TIME OF THE INCIDENT.

Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS ATTEMPTING TO REMOVE A PIN OUT OF A SCREEN WHEN HE HIT HIS THUMB WITH A HAMMER.

2001 · 1 incident

Struck against a moving object

EMPLOYEE IN VEHICLE #1 GOING SOUTH BOUND OUT OF DRIVE WAY. COLLIDED WITH CONTRACT CARRIER ENTERING DRIVE GOING NORTH IN LEFT HAND CURVE.