Carrier profile · USDOT 846128 · Updated Aug 20, 2026
St Clair Construction Inc
2 power unitsSTEVENSVILLE, 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
- 711 MIDDLE BURNT FORK RD, STEVENSVILLE, MT, 59870
- Operation
- Interstate· Hazmat
Contact
- Phone
- (406) 722-3207
- Fax
- (406) 722-3206
- Web domain
- blackfoot.net
Registration
- Officers
- Oliver L. St.Clair · Susan K. St.Clair
- USDOT / docket
- 846128
- First registered
- Dec 27, 1999
- Last MCS-150
- Nov 25, 2025 · 25,485 mi (2024)
- FMCSA safety rating
- Not rated
- D-U-N-S
- 782019137
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.