Carrier profile · USDOT 290775 · Updated Jun 21, 2026
Great Southwestern Construction Inc
314 power unitsavg 8.6 yrRegional · 4 statesCASTLE ROCK, CO81/100
AUTHORITY STATUS UNKNOWNRATED CONDITIONALHAZMAT
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
- 1100 TOPEKA WAY, CASTLE ROCK, CO, 80104
- Mailing address
- 3491 W 250 N, BARGERSVILLE, IN, 46106
- Operation
- Interstate· Hazmat
Contact
- Phone
- (469) 506-9095
- Fax
- (720) 902-7653
- myr-dot@myrgroup.com
- Web domain
- myrgroup.com
Registration
- Officers
- Brandon Lark · Brad J Munden
- USDOT / docket
- 290775
- First registered
- Apr 30, 1987
- Last MCS-150
- Jun 25, 2025 · 4,462,006 mi (2024)
- FMCSA safety rating
- Conditional · Jul 13, 1998
- D-U-N-S
- 139723357
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.