HaulerCheck · https://haulercheck.com/carrier/166445-mc-materials-llc/ · Checked 2026-10-19 06:23 UTC · Census and inspections Oct 18, 2026 · Authority and insurance: Last known · FMCSA snapshot May 14, 2026
MC MATERIALS LLC
Doing business as 1 RIVER ROCK 2 STEWART MORRISON 3 VAUGHN 4 OZARK CO 5 THAYER 6 SALEM 7 ALL THESE ARE REDI MIX 8 SPRING CREEK MATERAILS
Do not book until these are resolved · 1 signal
How risk signals workAt least one fact in the FMCSA record should stop a booking until it is cleared up. Confirm the current record on Motus first; it is not a finding of wrongdoing. Authority and insurance are last known from May 14, 2026.
- Operating authority is inactive (last known)Without active authority the company may not haul or broker interstate freight for hire.
No cargo cover filed with FMCSA
Not a live check. FMCSA has not published a Motus record for this carrier, so authority and insurance show the last known status from May 14, 2026. Confirm on Motus ↗ before booking.
What to verify next
- Confirm authority and insurance on the official Motus record ↗: our copy is the last known status from May 14, 2026. Safety record: SAFER ↗.
- Call back on the number on file, (417) 256-8171, not a number from an email or load board.
- Check that the MC number you were given is MC303495.
- Ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Insurance on file
No insurance filings were found in the public FMCSA data for this carrier.
Roadside inspections Oct 18, 2024 – Oct 18, 2026
0 of 3 · Missouri avg 20.2%
0 of 5 · Missouri avg 3.6%
5 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Apr 21, 2026 | MO | 3 | 0 | No |
| Dec 22, 2025 | MO | 2 | 2 | No |
| Jun 23, 2025 | MO | 2 | 0 | No |
| Nov 20, 2024 | MO | 2 | 0 | No |
| Oct 31, 2024 | MO | 3 | 0 | No |
How these rates are calculated
Period: Oct 18, 2024 – Oct 18, 2026. Vehicle rate = vehicle inspections with a vehicle out-of-service order ÷ vehicle inspections (levels 1, 2, 5 and 6). Driver rate uses levels 1, 2, 3 and 6. The Missouri average covers 51,987 vehicle and 91,607 driver inspections of all Missouri-based carriers in this period. It mixes every type of operation, so compare with care; rates based on a handful of inspections say little. FMCSA's own SMS measures are weighted differently: SMS profile ↗ · SAFER snapshot ↗
Violations in FMCSA's SMS last 24 months
2 violations counted in FMCSA's Safety Measurement System (SMS), 0 of them serious enough to put the driver or vehicle out of service.
| Category (FMCSA BASIC) | Violations | Out of service | Share | Missouri share |
|---|---|---|---|---|
| Vehicle Maintenance | 2 | 0 | 100.0% | 66.1% |
2 most frequent violations
| Violation | Times | Out of service |
|---|---|---|
| Emergency Equipment - Fire Extinguishers - unsecured Emergency Equipment · Vehicle Maintenance · code 39395A4EEUS | 1 | 0 |
| Lighting - Tail lamp - Any obstructed. Lighting · Vehicle Maintenance · code 3939BLRLO | 1 | 0 |
Source: FMCSA SMS violation file, inspections in the last 24 months, published Oct 18, 2026. "Share" is this company's mix of violations; the Missouri column is the mix across all Missouri-based carriers, so you can see which kinds of problems stand out. A high count partly reflects fleet size and how often trucks are inspected.
Crashes Oct 18, 2024 – Oct 18, 2026
2 most recent crashes
| Date | Location | Fatalities | Injuries |
|---|---|---|---|
| Jul 28, 2026 | Non-City Or Unincorporate, MO | 0 | 1 |
| Apr 28, 2026 | Springfield, MO | 0 | 0 |
Reportable crashes do not imply the carrier was at fault.
Company details FMCSA census · Oct 18, 2026
| USDOT number | 166445 |
|---|---|
| MC / docket | MC303495 |
| Legal name | MC MATERIALS LLC |
| DBA name | 1 RIVER ROCK 2 STEWART MORRISON 3 VAUGHN 4 OZARK CO 5 THAYER 6 SALEM 7 ALL THESE ARE REDI MIX 8 SPRING CREEK MATERAILS |
| Operation | Interstate |
| Business type | Corporation |
| Power units | 68 |
| Drivers | 42 |
| Annual mileage | 860,000 (2025) |
| Hazmat | No |
| Safety rating | Satisfactory (Mar 25, 2002) |
| USDOT number added | Jun 1, 1974 · 52 years ago |
| Last MCS-150 update | Oct 14, 2026 |
Cargo carried
Commodities Dry BulkOtherConcrete, Sand, Gravel And Cement
Questions about MC MATERIALS LLC
What does MC MATERIALS LLC's operating authority allow?
FMCSA records show no active operating authority for MC MATERIALS LLC (MC303495), so it may not haul regulated interstate freight for hire or broker loads under these dockets.
Which information about MC MATERIALS LLC is old or missing?
Operating authority is the last known status from the FMCSA snapshot of May 14, 2026, not a current check. No insurance filings were found in the public data. There are too few vehicle inspections in the last 24 months to judge the out-of-service rate.
What should I verify before booking MC MATERIALS LLC?
Confirm the authority and insurance on the Motus record for USDOT 166445. Call the company back on the phone number on file, (417) 256-8171, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC303495, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other trucking companies in West Plains, MO →
Company details from the FMCSA Company Census File (Oct 18, 2026). Inspections and crashes from FMCSA MCMIS files. About our data · Report an error on this page (how corrections work).
Page generated 2026-10-19 06:23 UTC.