Randolph Deep Mine

Active Underground Stone

Operator: Martin Marietta Kansas City, LLC

Controller: Martin Marietta Materials Inc

Location: Randolph, Clay County, MO

Employees: 103

412
Violations
113
S&S Violations
34
Accidents
$178K
Penalties

Recent Violations

View all 412 →
Date Section S&S Negligence Penalty
01/28/2026 57.20011 S&S LowNegligence $0
01/07/2026 57.4101 Non-S&S ModNegligence $151
01/06/2026 57.12032 Non-S&S LowNegligence $151
01/06/2026 57.12004 Non-S&S ModNegligence $151
01/06/2026 57.11053(a) Non-S&S ModNegligence $151
01/06/2026 57.12008 Non-S&S ModNegligence $151
01/06/2026 57.14103(b) Non-S&S ModNegligence $151
12/09/2025 57.3200 Non-S&S ModNegligence $151
12/09/2025 57.3200 S&S ModNegligence $2,133
12/09/2025 57.4201(a)(2) Non-S&S ModNegligence $151
12/08/2025 57.12028 Non-S&S LowNegligence $151
12/08/2025 57.3200 S&S ModNegligence $959
12/08/2025 57.4201(a)(1) Non-S&S ModNegligence $151
12/08/2025 57.14100(b) Non-S&S ModNegligence $193
12/08/2025 57.12032 Non-S&S LowNegligence $151
12/08/2025 57.9301 Non-S&S ModNegligence $432
10/03/2025 Non-S&S $0
05/07/2025 57.3200 Non-S&S LowNegligence $151
05/06/2025 57.6202(a)(4) Non-S&S ModNegligence $151
05/06/2025 57.4201(a)(1) Non-S&S ModNegligence $151

Accidents & Injuries

View all 34 →
Date Classification Injury Days Lost
10/03/2025 SLIP OR FALL OF PERSON DAYS AWAY FROM WORK ONLY None
12/31/2024 SLIP OR FALL OF PERSON DAYS RESTRICTED ACTIVITY ONLY 6d restricted
10/07/2024 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None
02/27/2024 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None
02/05/2024 MACHINERY DYS AWY FRM WRK & RESTRCTD ACT 3d lost, 40d restricted
08/31/2023 SLIP OR FALL OF PERSON DAYS RESTRICTED ACTIVITY ONLY 6d restricted
08/24/2023 HANDTOOLS (NONPOWERED) DAYS RESTRICTED ACTIVITY ONLY 7d restricted
06/05/2023 HANDLING OF MATERIALS DYS AWY FRM WRK & RESTRCTD ACT 4d lost, 42d restricted
01/30/2023 SLIP OR FALL OF PERSON FATALITY Fatal
06/20/2022 FIRE ACCIDENT ONLY None

Inspections

View all 181 →
Begin End Hours Inspectors
01/05/2026 01/08/2026 68.25 2
12/07/2025 12/11/2025 66.75 2
10/03/2025 01/30/2026 64.25 3
07/28/2025 08/07/2025 60.00 1
05/06/2025 05/14/2025 55.50 1
02/03/2025 02/25/2025 43.50 1
11/04/2024 11/20/2024 96.00 1
10/28/2024 10/29/2024 18.50 1
09/03/2024 09/05/2024 27.50 1
08/27/2024 08/27/2024 6.50 1

Mine Details

MSHA Mine ID2302308
Mine TypeUnderground
StatusActive
CommodityStone
SIC DescriptionCrushed, Broken Limestone NEC
Employees103
Days/Week5.0
Hours/Shift12.0
Coordinates39.1561110, -94.4947220
Nearest TownRandolph

Frequently Asked Questions

How many MSHA violations does Randolph Deep Mine have?

Randolph Deep Mine has 412 MSHA violations on record, of which 113 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $178K.

What type of mine is Randolph Deep Mine?

Randolph Deep Mine is a Underground mine producing Stone, located in Randolph, Clay County, MO. It currently has 103 employees.

Has anyone been injured or killed at Randolph Deep Mine?

According to MSHA records, Randolph Deep Mine has 34 reported accident/injury records and 1 fatalities on file.

Who operates Randolph Deep Mine?

Randolph Deep Mine is operated by Martin Marietta Kansas City, LLC and controlled by Martin Marietta Materials Inc. MSHA Mine ID: 2302308.