Carrier profile · USDOT 1450254 · Updated Jun 13, 2026
DIVERSIFIED MATERIALS & CONSTRUCTION LLC
6 power unitsLocal · 1 statesMISSOULA, MT50/100
AUTHORITY STATUS UNKNOWNHAZMAT
Identity & Federal
The official FMCSA identity — legal name, DBA, addresses, contact, officers, and registration — alongside the daily-captured federal-record activity feed, monitored daily by Vektor.
Location
- Physical address
- 1600 RIVER ROAD, MISSOULA, MT, 59801
- Operation
- Intrastate (Hazmat)· Hazmat
Contact
- Phone
- (406) 543-2649
- Cell
- (406) 253-7429
- Fax
- (406) 543-6512
- dmc@riverrocks.com
- Web domain
- riverrocks.com
Registration
- Officers
- Cheryl Thomas · Mark Thomas
- USDOT / docket
- 1450254
- First registered
- Jan 10, 2006
- Last MCS-150
- Apr 16, 2025 · 231,660 mi (2024)
- FMCSA safety rating
- Not rated
- D-U-N-S
- 164945987
Fleet (self-reported · MCS-150)
MCS-150 filing history· biennial-update cadence
Per-filing MCS-150 history (each biennial update + the fleet/mileage it reported) is being captured from the daily federal feed and will appear here as we capture the full history.
Federal record activity· monitored daily by Vektor
No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.