CONCRETE MATERIALS, INC. is a ready-mix concrete manufacturing employer in MERRIAM, KS. Federal records show 2 OSHA inspections with 9 violations and $38,782 in penalties. 1 workplace fatality investigation on record. All data sourced from public federal enforcement records.
Data sourced from OSHA, DOL WHD, MSHA, EPA ECHO, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA, and the UVA Corporate Prosecution Registry. Last updated: May 2, 2026.
CONCRETE MATERIALS, INC.
9900 W 75TH STREET, MERRIAM, KS, 66204
Parent: Knife River Corp (1,554 locations)
327320 — Top companies in Ready-Mix Concrete Manufacturing
31 employees
Industry Benchmark
Data Insights
Inspection Breakdown
Peer Comparison
Environmental Compliance (EPA)
Motor Carrier Safety (FMCSA)
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Inspection History
No inspection records found.
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Data aggregated from public federal enforcement and program records (OSHA, WHD, MSHA, EPA, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA) plus the UVA Corporate Prosecution Registry. Employer profiles matched by name and location — matching errors may occur. Risk scores computed by FastDOL, not official government assessments. OSHA citations typically appear 3-8 months after the inspection, so very recent enforcement actions may not yet be reflected. Data provided as-is. Report a data error.
Part of a larger organization
CONCRETE MATERIALS, INC. is one of 1,554 establishments in our dataset that roll up under the parent organization Knife River Corp. Knife River Corp is a SEC public reporter (KNF), with most recent reported revenue of $3.1B.
Federal enforcement records on CONCRETE MATERIALS, INC. represent activity at this specific establishment. The full enforcement footprint of Knife River Corp across all 1,554 of its tracked locations is viewable on the parent profile.
Other establishments operated by Knife River Corp
- KNIFE RIVER CORPORATION — LODI, CA — 3 federal records
- KNIFE RIVER — MISSOULA, MT — 3 federal records
- CONNOLLY-PACIFIC CO — AVALON, CA — 3 federal records
- HAWAIIAN CEMENT — AIEA, HI — 3 federal records
- KNIFE RIVER CORPORATION — BILLINGS, MT — 3 federal records
- HAWAIIAN CEMENT — KAPOLEI, HI — 3 federal records
- STRATAS FOODS, LLC — ENGLEWOOD, NJ — 3 federal records
- CONCRETE PIPE & PRECAST, LLC — ASHLAND, VA — 3 federal records
- CONCRETE STRUCTURES OF THE MIDWEST, INC. — WEST CHICAGO, IL — 3 federal records
- CONCRETE MATERIALS OF MONTANA, LLC. — BELGRADE, MT — 3 federal records
Other employers in Ready-Mix Concrete Manufacturing within KS
- MIDWEST CONCRETE MATERIALS INC. — MANHATTAN — 3 federal records
- KANSAS SAND & CONCRETE INC — TOPEKA — 2 federal records
- CONCRETE SUPPLY OF TOPEKA INC — TOPEKA — 1 federal record
- APAC-KANSAS, INC. SHEARS DIVISION — HUTCHINSON — 1 federal record
- HEARTLAND CEMENT COMPANY — INDEPENDENCE — 1 federal record
- CONCRETE SERVICES CO. INC. — GREAT BEND — 1 federal record
- CONCRETE MATERIALS CO. — WICHITA — 1 federal record
- FORDYCE CONCRETE COMPANY, INC. — KANSAS CITY — 1 federal record
- MEIER'S READY MIX, INC. — TOPEKA — 1 federal record
- CONCRETE SERVICES CO. INC. — HAYS — 1 federal record
Industry context
Within the ready-mix concrete manufacturing industry in KS, CONCRETE MATERIALS, INC. ranks in the 94th percentile of OSHA violation frequency across 126 comparable establishments. That places this employer among the highest-violation establishments in its peer set.
OSHA penalty totals rank in the 98th percentile of the same peer group. Inspection frequency ranks in the 62th percentile.
The Bureau of Labor Statistics reports an industry-average Total Recordable Incident Rate (TRIR) of 2.5 for the ready-mix concrete manufacturing sector, with a Days Away, Restricted, or Transferred (DART) rate of 1.6. CONCRETE MATERIALS, INC.'s self-reported DART rate is 6.23, which is above the industry average.
Activity timeline
No federal enforcement activity has been recorded against this establishment in the past 7 years.
Frequently Asked Questions
- What is CONCRETE MATERIALS, INC.'s OSHA violation history?
- CONCRETE MATERIALS, INC. has 2 OSHA inspections on record with 9 violations and $38,782 in total penalties.
- How does CONCRETE MATERIALS, INC.'s safety record compare to its industry?
- CONCRETE MATERIALS, INC. operates in the ready-mix concrete manufacturing industry. The industry average Total Recordable Incident Rate (TRIR) is 2.5. CONCRETE MATERIALS, INC.'s self-reported DART rate is 6.23 compared to an industry average of 1.6.
- Has CONCRETE MATERIALS, INC. had any workplace fatalities?
- Yes. Federal records show 1 fatality investigation involving CONCRETE MATERIALS, INC..
About this data
This profile aggregates federal enforcement records on CONCRETE MATERIALS, INC. of MERRIAM, KS from 17 federal data sources. Records were found in 5 sources: OSHA workplace safety inspections, EPA ECHO environmental compliance, FMCSA motor carrier safety, SEC XBRL companyfacts (parent financials), and BLS industry safety benchmarks. The remaining 12 sources were checked and found no matching records: WHD, MSHA, NLRB, OFLC, OFCCP, USAspending, SAM.gov, CMS, CPSC, NHTSA, UVA, SEC enforcement.
Establishments are matched across agencies using normalized employer name, state, and ZIP code. The dataset was last refreshed on May 2, 2026. CONCRETE MATERIALS, INC. resolves to the parent rollup Knife River Corp, which operates 1,554 establishments in our dataset. OSHA accident records on file for CONCRETE MATERIALS, INC. include 1 fatality investigation.
This profile may be incomplete if CONCRETE MATERIALS, INC.operates under multiple legal names, files under variations our entity-matching rules don't yet cover, or maintains records below current matching thresholds. To report a missing record or correction, email corrections@fastdol.com.