Mining Incidents

Martin Marietta Materials,Inc.Mining Incidents in 2007

All MSHA-reportable accidents at Martin Marietta Materials,Inc. operations in 2007. Fatalities appear first.

Fatalities in 2007
2
Total incidents
102
Year
2007

Top incident classifications

  1. 01HANDLING OF MATERIALS39 incidents
  2. 02HANDTOOLS (NONPOWERED)12 incidents
  3. 03SLIP OR FALL OF PERSON12 incidents
  4. 04POWERED HAULAGE8 incidents
  5. 05OTHER6 incidents

All incidents in 2007

Accident type, without injuries

Undetected hot lime material from #6 kiln cooler system caught the stacked long tunnel conveyor belts on fire. Hand extinguishers could not control the fire. Local fire dept was called @ 12:35 pm and began applying foam suppression after 12:50 pm. Fire was controlled and out by 1:20 pm. MSHA called @ 12:56 pm (SR #1-48113790). There were no injuries involved.

Accident type, without injuries

Subsidence that occurred in XC7, R6 of the west side of the mine. A sinkhole was found by the land owner and mine management was notified. The hole was approximately 25' x 40' and went to the mine floor.

Accident type, without injuries

The loader operator was pushing in the surge pile at the secondary plant. At approximately 16:30, the loader engine shut off and would not restart. The operator parked the loader and left to get the mechanic. Upon return, he found the loader on fire. The fire was extinguished within 40 minutes.

Accident type, without injuries

On Monday, March 19,2007-Leadman called the surface office about 8am to inform me of a roof fall at the intersection of NE 10 @ U. This area had previously been closed off to access on 2-6-07. This area was not an active mining area. The roof fall was approximately 30' wide and 40' long forming a bowl in the roof roughly 20 feet high. MSHA was immediately called.

Drowning

Cause of accident is unknown at this time. Employee was working on a winch on a dredge boat and was found drowned behind the boat some time afterwards.

Caught in, under or between two or more moving objects

An R-35 Euclid Haul truck and a rail car collided.

Over-exertion in lifting objects

Employee was lifting a piece of screen cloth onto the screen and felt pain in his upper left arm. Employee worked full duty under doctor's care until April 3, 2008 when he had minor surgery *qualifying this as a lost time as of 04/03/2008.

Over-exertion in lifting objects

Moving toilet tank & hurt lower back.

Over-exertion (Not Elsewhere Classified)

Employee was trying to pry a rock out of the tail pulley when he felt something in his back ""pop"". Employee came to the office at 3:18pm to tell the plant manager that his back was hurt. *** Reportable Lost Time because employee did not come to work August 30 & 31.

Fall to the walkway or working surface

Employee was pulling torch hose to work area when he slipped and fell to same level.

Caught in, under or between running or meshing objects

The chain on drill mast was broken (it was wedged into the top sprocket). When pried loose it pulled his glove into the chain and the sprocket, pinching his right hand, thus requiring 17 stitches.

Struck against stationary object

Employee claims he stepped on a rock and twisted his knee while walking from the primary to a conveyor walkway. The result was torn cartilage in his knee.

Caught in, under or between (Not Elsewhere Classified)

Moving electric motor with fork lift; while adjusting forks on fork truck, he smashed his finger.

Struck against stationary object

While dismounting drill rig, stepped off of ladder onto a rock which rolled causing him to roll (sprain) his ankle.

Over-exertion in lifting objects

Ee was lifting screens to the top of the screen deck and felt an onset of back pain. He thought it was pulled muscle but when it didnt get better he went to the dr. and after it did nfot improve, an mri was done showing a herniated disc. because his contition did not improve any the dr. took him out of work on 7/16/07.

Over-exertion in lifting objects

While installing rubber in the second deck of #1 screen, we lifted it up onto the catwalk. It was during the process that I felt my back get hot. * Employee has a strained back. This became a reportable on May 23 when it was determined through doctor's reports that his injury was work related.

Over-exertion in lifting objects

EE was replacing a bucket tooth and shank that had broken off the dragline bucket. He lifted the approx 120lb assembley several times and reported back and groin pain the next day. He was diagnosed with a hernia which would require surgery to repair. He worked until 6/26/07 and that is when he had surgery.. First day lost is 6/26/07. Estimated lost time 4-6 weeks.

Struck by falling object

While on the rock breaker in the pit breaking rock, the employee broke through a large rock and in doing so the machine shook some dust off the ceiling of the excavator and it drifted down behind his safety glasses and into his eye.

Over-exertion (Not Elsewhere Classified)

After a repair on the dragline, the employee complained of pain in his shoulder. He was examined by a doctor, and diagnosed with a strain. He was allowed to return to normal work duties. On May 23, 2007, he complained of more pain, and returned to the doctor. At that time he was excused from work pending further medical tests.

Over-exertion (Not Elsewhere Classified)

While sliding a heavy steel member on table, EE pulled something in lower back. Wrote it on 1st aid board & con't to work. On the 27th & 28th, he tweaked it again & told supervisor. Dr. told him light duty, which makes this a lost time because of shop policy. He is supposed to get an MRI.

Fall from machine

Employee stated that he was doing a pre-shift inspection on the loader when he began to cough which caused him to slip and hurt his back. He reported this to the leadman later that morning. Reported as first aid. Began losing time on 5/7/07 allegedly due to the incident on 1/9/07.

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

Employee assisting another employee un-hitching an air compressor on a trailer from the maintenance truck. IW was pressing down on the latch to release the trailer from the ball, when the trailer rolled, causing his L index finger to be smashed between a steel plate on the truck above the hitch and the trailer hitch. IW L index finger received a serious avulsion.

Over-exertion (Not Elsewhere Classified)

Employee was walking between MCC5 and LPT system water tanks when he stepped into a hole full of slurry. At the time of the incident he did not think he had an injury. Reported to company as injury on 10/23/07, doctor released to full duty at that time, became reportable when doctor took him off work on 11/13/07.

Struck against stationary object

Employee performing maintenance/welding repairs to the plant, stepped down from a platform (about 10"" drop) and stepped on a rock, twisting his ankle. After first aid he was released with no restrictions. Later taken off work on 9/19/07.

Over-exertion (Not Elsewhere Classified)

Employee was rolling up used conveyor belting when he heard a pop in his left arm and felt intense pain in his left bicep elbow area.

Over-exertion (Not Elsewhere Classified)

Employee was climbing the steps to his truck when he slipped and caught himself causing a strain to his left arm and shoulder. Incident became reportable 7/16/07 when the employee was sent for ""Other Professional Treatment"" (Physical Therapist)

Fall to the walkway or working surface

EE was working with a loader operator to move metal plating. The loader moved to fast causing the metal to contact his left leg below the knee causing him to fall backwards resulting in back pain. ** He continued to work until doctor wrote Him out one September 28 making October 1 his first lost time day.**

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

Employee was working with a coworker changing urathane screen sections. In the process of one employee shoving a section of screen to the injured employee, the section caught; the coworker shoved harder; the section jumped and pinched the injured employee's right thumb tip.

Fall from machine

Employee was dismounting a 980G Loader and did not notice his left shoe lace was untied. Shoelace got hung up on the 2nd step from bottom and employee fell landing on his lower back and rolled up onto his shoulder.

Struck by flying object

Vac Truck operator, EE was retrieving tools beneath #5 rotary kiln ground area during extreme wind conditions. A sudden gust of windblew dust into her face, and under eye protection. Lime dust got into her right eye. Initiallst aid irrigation got it out and she returned to work. The next day it became worse and required medical treatment and temporary retricted duty to heal.

Over-exertion (Not Elsewhere Classified)

Repairman and 3 others were replacing screen sections on the West Diester screen over the Tertiary Crusher. While changing out manually the 90#, 4'x4' sections lying face down, he suddenly felt pain in his lower back. He continued working and iced his back at home. Whe he returned the next morning he couldn't work and required medical attention w/temp. restrictions.

Over-exertion (Not Elsewhere Classified)

Contractor was repairing torque converter output seal, laying on right side platform with his legs extended over the platform. He used his abdomen muscles to arch up to reach back for a wrench and popping noise occurred in right knee. He climbed off machine and walked around trying to stretch and maneuver his knee. That is when the real pain started.

Over-exertion (Not Elsewhere Classified)

Technician was attempting to place a portable hydraulic press, weight approx. 100 lbs., onto wood crib blocks. Hydraulic press fell off of wood crib blocks and fell. Techician tried to hold onto press and sprained left shoulder.

Struck against a moving object

Employee was operating haul truck when he strained his lower back

Over-exertion in lifting objects

Back started hurting while loading 1st of 2 shots but continued loading & carrying 50# bags and 4x20 sticks of blastex.

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

Employee was climbing into grader. He placed his right hand on the door frame and was inspecting the grease on the table when the wind blew the door shut on his right hand.

Struck against stationary object

Employee was stepping down from loading dock onto boat. When he stepped down his right foot landed on a pipe laying on the deck of the boat, the pipe rolled twisting his foot.

Over-exertion (Not Elsewhere Classified)

Operator was stepping off his loader and stepped in a hole. He turned his ankle and broke his foot.

Over-exertion (Not Elsewhere Classified)

Employee received a lumbar strain while shoveling off a belt at the primary.

Struck against stationary object

Employee was getting into truck T-648 and did not bend over far enough (was wearing hard hat) causing him to hit top of hard hat on the inside of door opening. This caused his head to bend backwards very hard hurting his neck. His fingers, hands, and feet are numb and tingling. Also, his arms and legs feel weak.

Over-exertion (Not Elsewhere Classified)

Employee was carrying two 5 gallon buckets of oil up to the crusher floor; felt pain in left shoulder.

Struck by... (Not Elsewhere Classified)

Cutting conveyor belt with utility knife. Knife slipped cutting pinky finger & ring finger.

Over-exertion (Not Elsewhere Classified)

Employee was climbing ladder to haul truck and felt a sharp pain in his lower back. Delay in reporting due to misdiagnosis by doctor. Doctor stated the pain was caused by a fractured vertebrae from a fall. The employee had not fallen and went for a second opinion where a pinched nerve consistent with the activity was diagnosed making the injury reportable.

Struck by... (Not Elsewhere Classified)

Injured employee and another were attempting to drive parts out of a drill hamer casing. One employee was hold a 1"" diameter bar and the other was striking it with a hammer. The hammer glanced off the bar and struck the employee's hand.

Struck by... (Not Elsewhere Classified)

EE was replacing the broken handle on his personal chipping hammer in the North Shop. While using a bench vise to secure the new handle in position, EE used another small hammer to drive the wedge pin into the top of the new handle at the head of the chipper. The 2 hammer heads made contact, causing several small pieces of metal to break off and went into top of EE's left hand.

Struck by flying object

Employee was attempting to remove a gear from a housing, striking it with a hammer. As he hit the gear, a piece of metal broke off the gear and struck him in the leg.

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

Employee was adding oil to Volvo A25D truck. The truck has a hydraulic crank that opens and closes the hood. When he started the closing process it closed on his hand. This incident did not become reportsable until 1/23/07 doctors treatment.

Fall from machine

Employee did not use three point contact when climbing down from his haul truck. The weather conditions were deteriorating. Employee was in a hurry to go home.

Over-exertion in pulling or pushing objects

Employee was loading a box of stick powder weighing 55 lbs onto the powder truck. EE used his right elbow to push open the door. Later on in the day he began to feel pain. Diagnosis was tennis elbow, temporarily reassigned and given home therapy exercises. Pain continued and was referred to PT on 02/02/2007. EMPLOYER knew about PT on 02/16/2007.

Struck by... (Not Elsewhere Classified)

Employee performing maintenance on a 980C front-end loader. While removing the loader teeth pins he struck one of the teeth with a hammer, a piece of metal sheared off into the right side of his stomach. the clinic removed the metal, 8 stitches were required.

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

Employee was assisting in removing a rock jam in the primary crusher. A rock slipped and struck his finger on his right hand. This injury resulted in three stitches.

Struck against stationary object

Employee was working on the 980C loader. While reaching for the open end of the wrench, the wrench stabbed his left hand between the thumb and index finger resulting in a deep cut. Three stitches were required.

Contact with hot objects or substances

EMPLOYEE WAS WELDING AT PRIMARY PLANT, WHEN HOT METAL FELL ON UPPER AND LOWER EYELIDS. EMPLOYEE WAS NOT WEARING A HELMENT

Struck by flying object

Employee working on impactor, wind was blowing and foreign object got in his eyes.

Struck against stationary object

Employee hit left elbow on hand rail of loader causing it to swell. Went to Dr. and returned to work with no restrictions. Went back to Dr. a week later for a check up and they drained two syringes of fluid from elbow.

Struck by flying object

Employee was working on the Kaw Loader - tapping ujoint into place when a piece of metal broke off the hammer and went into his pointer finger on the left hand. Metal was removed at the clinic and one stitch was required.

Over-exertion (Not Elsewhere Classified)

South utility man had parked his cat 988 loader at the #1 kiln feed and MCC entrance. While descending the access ladder he misstepped off the ladder and twisted his left knee inward upon contact with the ground. He continued working his normal job at full duty until medical attention and PT was required on 10/19/07. RTW full duty on 10/19/07.

Struck by falling object

EE was putting a spacer on the scaler. The spacer fell and struck the EE on the finger. EE reported injury to mgmt on 10/01/2007 but refused medical treatment. On 10/11/07 EE requested to see a doctor. Initial x-ray was inconclusive. Read by radiologist and determined to be a minor fracture.

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

Employee was using a grease pump to grease the Cat water truck. The pump air locked three times. He shook the pump two times with it in place to release the air lock. The third time he grabbed one side of the pump and the front to lift it off the barrel. When he set the pump down it smashed his thumb.

Struck by... (Not Elsewhere Classified)

EE was holding a hydraulic hose that had a pin hole in it. When the hose pressurized it shot oil into the employee's right thumb.

Struck against stationary object

Miner was exiting pickup truck and apparently placed right foot out of truck to exit. When weight was placed on foot that was on a rock his ankle twisted and he fell to the ground. Fractured small bone in ankle.

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

Employee was installing a motor on the primary feeder. As the motor was being positioned onto the motor base, it shifted and pinched the tip of the employees left ring finger between the motor and an adjacent beam.

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

Employee was pulling on a pallet, when the part on the pallet moved, it cut his finger.

Struck against stationary object

The employee was changing cutting edges on the dozer blade. As he was cleaning the area, his hand contacted the sharp edge of the blade, causing a cut on his palm.

Struck by... (Not Elsewhere Classified)

Employee was using a 16 lb. sledge hammer to knock out a lock that holds in the impactor bars. He missed the lock and hit the impactor and the hammer bounced and hit his right foot behind the steel toe portion of his shoe.

Struck by falling object

EE was fixing a slab shot that was drilled through causing excess Dyno Ap to fall through the holes. As he picked up a stick of explosives, several rocks fell above him, ranging from the size of 30"" to 1"". The EE quickly moved to avoid the falling rocks but was struck on the back of his right hand causing a small laceration requiring 4 stitches.

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

EE was assisting in changing out a motor for the Primary Crusher. Upon removing the old v-belt sheave, the injured EE pulled on the sheave to check if it was tight, the sheave then slid down the shaft and fell on the EE's finger, resulting in a fracture.

Struck against stationary object

Employee was helping change screen cloth. In the process of removing the screen, he cut his finger on the sharp edge of the screen cloth.

Struck against stationary object

Employee was helping clear crusher platform. As he swung his arm to throw a rock, his hand struck the handrail, causing a fracture to his finger.

Fall to the walkway or working surface

Employee was walking to the office and tripped on a rock. He put his hand out to break his fall and landed on his right knuckles resulting in a fractured bone.

Struck by flying object

Employee was helping unroll spool of wire rope for the dragline. As they neared the end of the rope, it slipped out of the attaching staple, and struck the employee in the mouth.

Struck by powered moving object

EE was sitting in his truck waiting to be loaded and the bucket of the loader hit the back of his truck.

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

Employee was moving the forks on a fork truck when he caught his finger between the slide bar and the fork.

Struck by... (Not Elsewhere Classified)

Employee was cleaning obstruction from tunnel feeder with bar. When he hit the side of the box, material came loose and pulled bar from his right hand. When it came out, the bar went straight up, hitting the employee in chest and chin, resulting in a laceration to chin.

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

EE had his finger mashed in the door of the haul truck cab. He was pulling the CB cable that was dragging inside the cab. Another EE was training on the truck. He got out of the cab & pulled slack out of the CB cable line. Injured was trying to hold the cable out of the way while the door was shut. Injured thought he was OK & told other EE to shut the door. Finger was fractured.

Struck against a moving object

Employee was scaling using a Getman scaler. A hydraulic suction hose ruptured causing the boom to suddenly drop jarring the employee's neck.

Struck by... (Not Elsewhere Classified)

EE was holding the hydraulic wrench used to tighten swing die wedge bolts. While tightening a bolt, the bolt started getting tight, the wrench started to shift up mashing the EE's middle finger on his left hand. The injury resulted in 5 stitches and a fracture to tip of finger.

Struck by... (Not Elsewhere Classified)

EE was working on the wash tower, holding a screen. While he was holding the screen cloth, it slipped off I beam and fell about a foot and 1/2. When the screen slipped, it struck the EE's right hand resulting in a cut to his ring finger on his right hand. This injury required 6 stitches.

Caught in, under or between (Not Elsewhere Classified)

Employee was attemting to clean Ultrasonic at the 7 ft. cone crusher. His right middle finger was caugh between a bolt and the motion sensor, causing a laceration.

Over-exertion (Not Elsewhere Classified)

Loader operator reported soreness in his left shoulder that was aggravated by operating his loader.

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

EE & co-worker were in the process of removing an impact idler from conveyor. They slid the idler back to make room for removal. When they flipped the idler over, EE's finger was pinched between the idler and conveyor.

Fall from machine

Employee fell off engine compartment of Getman scaler while servicing unit. Employee struck his leg on the catwalk and landed on the ground. Diagnosis was POSSIBLE rib fracture. Released to full duty. On 04/02/2007 employee heard a pop and felt increased discomfort in rib area while operting a haul truck. Treating physician then diagnosed rib fracture.

Struck by... (Not Elsewhere Classified)

Employee was holding a side panel of polyurethane screen deck on his right knee and trimming it with a utility knife when the knife slipped and cut his leg. The resulting laceration required four stitches to close. Medical only, no lost time.

Struck by falling object

Employee was reaching out to grab a wooden skid when the person handing it to him dropped it on his finger.

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

Employee was cleaning up in the surge tunnel when he heard a spring on the feeder rattling. He placed his hand on the springs to determine which one was loose and his finger slipped between the broken spring and the bracket where it was pinched through his glove. He sustained a laceration to his index finger which required 5 stitches.

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

Employee was assiting to install a pipe under a splitter box when his finger was caught between the pipe and the flange bolts.

Struck against stationary object

Employee was driving a wedge to secure the door on the sand box. As he swung the hammer, his hand contacted the door frame, breaking his finger.

Absorption of radiations, caustics, toxic and noxious substances

Vac Truck Operator was standing along side the truck in front of the outside control panel at the North plant dump area. He was dumping collected dust with his partner when a sudden gust of wind blew lime dust from the rear gate up into his face. A lime particle came up under his safety glasses into his left eye. Flushing the couldn't remove the lime speck from the cornea.

Struck by falling object

3 employees were changing out troughing rollers on a belt conveyor. As employee was lowering a roller down to injured employee, the roller slipped out of his hands, striking co-worker on his left foot about 2 inches above the steel toe. He went to the doctor and an x-ray revealed a broken bone in his left foot.

Struck by falling object

Employee was picking up one side of a piece of metal. When employee lifted one side of the metal the bottom piece of metal slid forward and landed on the employee's left foot.

Struck by... (Not Elsewhere Classified)

Employee was unhooking the haul cable from a loaded barge, when the cable was unhooked and the winch operator began to raise the cable the cable hung under the cavel. When the cable became tight it sprang from under the cavel and struck the employee in the left thigh.

Inhalation of radiations, caustics, toxic and noxious substances

Confirmed diagnosis of Silicosis.

Inhalation of radiations, caustics, toxic and noxious substances

Employee was diagnosed with silicosis, notification from medical advisor on 02/28/2008.

Inhalation of radiations, caustics, toxic and noxious substances

Silicosis - occupational illness.

Inhalation of radiations, caustics, toxic and noxious substances

Silicosis claim.

Over-exertion (Not Elsewhere Classified)

Emloyee has suffered increased hand cramping for ten years to the point he reported it to management on 11/20/2007. His condition, deemed carpal tunnel in both wrists, is not restrictive as yet, but will require surgery and a period of restricted duty recovery sometime in first quarter 2008.

(Not Elsewhere Classified)

Employee presents a claim for long term hearing loss

Contact with heat

EE was cleaning a catwalk and became overheated and began to feel sick to his stomach.

Unclassified, insufficient data

Pedestrian had an automobile accident on a street adjacent to our property. He was reported missing on the accident date and was discovered down an embankment near an access road on the outskirts of our quarry. He appearantly died of overexposure. The victim was a tresspasser and this event is non-chargeable as a mine related incident.

Over-exertion (Not Elsewhere Classified)

Employee was standing on rope stand platform, throwing a swing line rope to another employee. His left foot slipped off the platform, onto the first step, twisting his back.

Struck by flying object

Employee was drilling and got a piece of metal in his right eye.

Fall down stairs

Employee was walking down the stairs at the scale house when she slipped and fell. She initially had a bruise which turned into an infection that required treatment on the 6th of March.

Other years on record

Source: US Mine Safety and Health Administration (MSHA) accident records, kept current weekly. Operator identity is MSHA's operator_id on the accident record; records are scoped to Martin Marietta Materials,Inc.'s numeric MSHA operator ID.