Sioux Falls Quarry — Accidents

Total: 45 accidents | Fatalities: 0

Date Classification Injury Days Lost Narrative
01/20/2026 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None Employee was assisting with the replacement of a head-drum shaft bearing on the #1 screen conveyor on the Portable Plant. The chain that was used to support the head-drum and shaft assembly snapped, s...
08/18/2025 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 6d restricted Team members replacing return roller, shaft began to slip, team member grabbed the shaft, causing pain to the right wrist.
08/14/2024 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None Employee was attempting to remove the swivel adapter from the auger head. A 36-inch pipe wrench was attached to the adapter and while attempting to rotate the auger shaft, the auger shaft unexpectedly...
12/14/2023 SLIP OR FALL OF PERSON ALL OTHER CASES (INCL 1ST AID) None EE was washing Tower #2 back pad, EE shut the fire hose off went to change locations & started to slip, falling backwards, but caught self with left hand on a pillar causing a strain to right neck & s...
08/30/2023 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 1d restricted EE was lifting a return roller and handing it to a co-worker when EE twisted at the waist and strained back. (Lifting a Return Roller). Update: EE resigned, was not terminated by Knife River South D...
07/14/2023 MACHINERY NO DYS AWY FRM WRK,NO RSTR ACT None EE was removing a worn cutting-edge bolt from the loader bucket. When EE went to remove the nut, the bolt dropped and continued to spin when EE attempted to secure it by grabbing it with EE's left han...
06/14/2023 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None EE was removing a worn bucket tooth on the 990H Loader. When the tooth failed to separate from the bucket adapter, EE used a sledgehammer to strike the tooth resulting a piece of shrapnel from the too...
05/05/2022 SLIP OR FALL OF PERSON DYS AWY FRM WRK & RESTRCTD ACT 29d lost, 48d restricted EE was pulling a 1 1/2 inch fire hose to clean off piece of equipment, as EE was walking backwards, tripped in rut and fell to ground.
01/13/2022 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None Employee cutting belting for back flaps for feed ends of screen. Employee had the belting on the ground cutting, while on knees the utility knife slipped from the rubber, causing small laceration to...
10/18/2021 SLIP OR FALL OF PERSON DAYS RESTRICTED ACTIVITY ONLY 14d restricted Employee was climbing ladder onto haul truck, hands slipped, twisted left side back.
06/12/2020 DISORDERS (PHYSICAL AGENTS) OCCUPATNAL ILLNESS NOT DEG 1-6 None The employee was using a water hose to wash out the material under tower 2. The employee complained of a headache and not feel well. (Heat Exhaustion)
05/26/2020 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 9d restricted EE shoveling material to level the ground out to install stairs and platform to allow for storage of fueling tank.
03/04/2020 SLIP OR FALL OF PERSON DYS AWY FRM WRK & RESTRCTD ACT 11d lost, 66d restricted EE dismounting loader ladder, boot tread got caught in the bottom rung of step, fell to the ground, striking left knee on concrete floor. EE fell on 3/4/20, reported to clinic on 3/5/20. On 3/16/20 E...
03/20/2019 SLIP OR FALL OF PERSON NO DYS AWY FRM WRK,NO RSTR ACT None Employee was exiting loader with ladder, right foot already on group, when left foot became caught on bottom step, causing employee to lose balance and fall to ground. Employee tried to catch self an...
02/21/2019 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None Employee changing oil, debris fell and landed in employee's right eye.
11/05/2018 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None Window in loader was being closed, 5th fingertip slipped and was smashed between window and trim.
06/01/2018 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None Employee pulling down on cable jack while in a man lift and felt a pull in right shoulder.
04/19/2018 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 7d restricted Employee was washing material on the back pad under Tower 2 with a fire hose. Employee lost control of the fire hose and it hit them in the upper chest, below the collarbone. (Chest wall contusion) Em...
02/20/2018 SLIP OR FALL OF PERSON DAYS RESTRICTED ACTIVITY ONLY 4d restricted EE was walking to haul truck when EE slipped and fell on packed snow straining Rt. knee.
02/14/2018 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 2d restricted Employee had completed cutting an H Beam on the band saw in the welding shop. EE picked up the cut off piece off the band saw that weighed 30 pounds and felt a pain in back.
08/10/2016 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 4d restricted ***1st day of treatment was 8/12/16****loading a shot, struck by a rock in the back.
06/06/2016 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None EE was carrying a screen in Tower 2 to position it so that it could be installed in Screen 3. When EE picked up the screen EE felt a pain in right shoulder and bicep.(This incident was discussed with...
12/18/2015 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None Personnel was loading scrape metal onto a flatbed trailer his glove caught a piece of slag and caused the metal to pinch his finger between the metal and the wooden side boards of the trailer.
12/03/2015 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None Unwiring an electric motor and utility knife slipped when cutting tape and sliced through coveralls, jeans, and long johns to make lacerate inside of left thigh. A few stitches and no lost time.
03/28/2015 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None Employee was cutting tape on wires to a motor and it was snow covered, wet, and slippery and the utility knife slipped causing it to cut through his gloves and lacerate the back side of his left thumb...
02/13/2015 SLIP OR FALL OF PERSON NO DYS AWY FRM WRK,NO RSTR ACT None Employee was doing a pre-shift inspection on Loader unit #15-415. He was inspecting the z bar links, pins and bushings on the left front of the machine. He leaned over to inspect the machine, slipped...
04/26/2013 SLIP OR FALL OF PERSON NO DYS AWY FRM WRK,NO RSTR ACT None Employee was washing the HP 400 crusher decks off with a fire hose before scheduled crusher maintenance. He tripped on a small rock and fell to the crusher deck dislocating his left shoulder.
01/11/2012 HANDTOOLS (NONPOWERED) ALL OTHER CASES (INCL 1ST AID) None EE was using a vise grip pliers to close the end of an s-hook from a hold down strap. The vise grip pliers slipped off of the s-hook and pinched his left middle finger.
11/01/2011 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None IE was changing screens in the middle deck of #4 screen with co-worker. Co-worker was swinging a 4 lb hammer to set the screen in the screen deck. IE inadvertently put his left hand next to the area t...
08/16/2011 DUST DISEASE OF LUNGS OCCUPATNAL ILLNESS NOT DEG 1-6 None Exposure to Silica Dust / Silicosis
05/04/2009 SLIP OR FALL OF PERSON DYS AWY FRM WRK & RESTRCTD ACT 17d lost, 7d restricted Employee fell and strained his right knee while running to the break room to avoid getting wet when it began to rain.
02/11/2009 SLIP OR FALL OF PERSON NO DYS AWY FRM WRK,NO RSTR ACT None While hoisting a 3'x20.5' sheet of corrugated metal siding, the sheet was caught by a gust of wind causing the clamps to fail. The 20#sheet fell to the ground from a height of approx. 10' striking inj...
01/24/2009 FIRE ACCIDENT ONLY None The service vehicle was used for transportation to and from the field. The service truck was unoccupied and parked before the fire incident. At this time the cause of the vehicle fire is still under i...
12/19/2008 FIRE ACCIDENT ONLY None Fire in an unoccupied structure: The fire is still under investigation, but it is believed to have been started by repairs associated with welding activities.
06/26/2008 SLIP OR FALL OF PERSON NO DYS AWY FRM WRK,NO RSTR ACT None EE had finished washing out material from under the conveyor and was in the process of stowing the fire hose when he slipped backwards extended his L hand to caught himself and dislocating his left pi...
05/14/2007 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None The employee was climbing up a ladder to access the controls panel for stacker conv.The EE pulled his groin muscle when he was climbing ladder.
01/16/2006 SLIP OR FALL OF PERSON DAYS RESTRICTED ACTIVITY ONLY 5d restricted EE was walking backwards while carrying screen on screening tower platform. He tripped on water line and landed on his right side on top of support beam. Employee had been working in same area and h...
11/29/2005 SLIP OR FALL OF PERSON NO DYS AWY FRM WRK,NO RSTR ACT None Employee slipped and fell and dislocated his right pinkie finger.
09/09/2005 OTHER NO DYS AWY FRM WRK,NO RSTR ACT None Wind was blowing approximately 30 mph - he was changing out the south HP crusher. Dust blew in face and right eye.
05/29/2005 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None Employee checks pumps on weekends. Cart tipped down into water while greasing pump. Tried to keep cart from falling into water while at the same time adding rock for weight to tongue to prevent it fro...
05/11/2005 HANDLING OF MATERIALS DAYS AWAY FROM WORK ONLY 2d lost WHILE ON THE INCLINED CATWALK BETWEEN #2 & #3 SCREENS, OPENING THE SPRAY BAR ON #3 SCREEN. AFTER OPENING 2 VALVES, STOOD UP TO MOVE TO ANOTHER SET OF VALVES. A SHARP PULL WAS FELT IN LOWER BACK.
11/19/2003 MACHINERY DAYS RESTRICTED ACTIVITY ONLY 1d restricted EE WAS GRINDING ON A SCREEN/SPARKS WENT INTO FACE. EE WAS WEARING SAFETY GLASSES. DID NOT REPORT UNTIL FOLLOWING DAY. HAD IRRITATION IN THE EVENING. UNSUCCESSFULLY DID TRY TO REMOVE OBJECT-- COULD NOT...
10/26/2003 NO VALUE FOUND DAYS RESTRICTED ACTIVITY ONLY 171d restricted EE HAD STOPPED HIS TRUCK TO REMOVE A ROCK FROM THE HAUL ROAD. WHILE LIFTING THE ROCK FROM THE ROAD, HE STRAINED HIS BACK. HE WENT HOME AND THE NEXT MORNING HE COULD NOT GET OUT OF BED, AN AMBULANCE WA...
10/01/2002 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 5d restricted EE WAS CLIMBING THE LADDER ON THE LONGBELT STACKER TO MOVE IT, SPRAINED LEFT KNEE.
07/23/2002 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 18d restricted EE WAS GOING TO HELP CHANGE DRILL ROD. WHEN HE AND ANOTHER EE WERE LOADING ROD ON FLATBED TRUCK, ROD ROLLED TOWARD EE. EE THEN PUT HIS LEFT FOOT TOWARD ROD TO KEEP IT FROM ROLLING OFF TRUCK.