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
Network & Fraud
Reincarnation chains, shared-VIN links, common domains and officers, and owner-group affiliations — the chameleon / double-broker signals that name-and-USDOT lookups miss.
Shares a registration email domain with other carriers
@myrgroup.com — 10 carriers: USDOT 29762USDOT 127892USDOT 473649USDOT 2422037USDOT 2632220USDOT 2887483USDOT 3173732USDOT 3312468
Capacity consistency· registered vs roadside-observed power units
Registered (MCS-150)314314
Observed (24 mo)2222
Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.
Owner / group view· confidence: email domain
Owner / group view
Affiliated authorities
Collapses 10 related authorities · joined by email domain
- Authorities
- 10
- Combined power
- 2,229
- States
- 6
- Oldest authority
- Jun 1, 1974
- Active now
- 10
- GREAT SOUTHWESTERN CONSTRUCTION INC· viewingUSDOT 290775314PU
- STURGEON ELECTRIC COMPANY INCUSDOT 29762850PU
- L E MYERS COMPANYUSDOT 127892544PU
- HARLAN ELECTRIC COMPANYUSDOT 473649334PU
- CSI ELECTRICAL CONTRACTORS INCUSDOT 331246881PU
- STURGEON ELECTRIC CALIFORNIA LLCUSDOT 288748342PU
- HIGH COUNTRY LINE CONSTRUCTION INCUSDOT 242203740PU
- E S BOULOS COMPANYUSDOT 263222012PU
- HUEN ELECTRIC INCUSDOT 317373211PU
- MYR ENERGY SERVICES INCUSDOT 34391451PU