Great Southwestern Construction Inc
Castle Rock, Colorado · Carrier number 290775
314
power units
314
power units
Great Southwestern Construction Inc is a freight carrier based in Castle Rock, Colorado with 314 power units and 357 drivers as reported, the 1,748th largest trucking fleet in the US and the 32nd largest in Colorado. In the 24 months to Sep 30, 2026 it had 6 reportable crashes (1.91 per 100 power units vs 2.98 for all carriers).
Updated Oct 11, 2026 · crashes and inspections to Sep 30, 2026
Power units
314
#32 in CO
Drivers
357
357 with commercial license
Crashes, 24 mo
6
0 fatal
Per 100 trucks
1.91
All carriers: 2.98
Vehicles out of service
35.0%
All inspections: 22.8%
Inspections, 24 mo
23
43% with no violation
Compared with other carriers
Crash rate over 24 months per 100 power units, and the share of roadside inspections that took the vehicle or driver off the road
| Crashes / 100 trucks | Vehicles OOS | Drivers OOS | |
|---|---|---|---|
| Great Southwestern Construction Inc | 1.91 | 35.0% | 4.3% |
| Carriers with 10+ trucks in CO | 1.27 | 19.6% | 3.9% |
| Carriers with 10+ trucks, US | 2.98 | 19.3% | 3.6% |
| All roadside inspections | - | 22.8% | 6.4% |
Lower is better. Carriers that drive more miles per truck can have more crashes per truck.
Crashes, 24 months
0 people killed and 2 injured
- Fatal0
- Injury2
- Tow-away4
Roadside inspections, 24 months
Inspections and how many ended out of service
| Kind | Inspections | Out of service | Rate |
|---|---|---|---|
| Driver | 23 | 1 | 4.3% |
| Vehicle | 20 | 7 | 35.0% |
Carrier facts
- Carrier number
- 290775
- Based in
- Castle Rock, Colorado
- Registered
- Apr 30, 1987
- Operation
- Across state lines
- Carries
- Freight
- Authority for hire
- None
- Safety rating
- Conditional (Jul 13, 1998)
- Miles driven
- 4.46 million (2024)
- Type
- Private property
- Cargo
- Building materials, Construction, Logs poles, Machinery, Metal, Motor vehicles, Utilities
- Last update filed
- Jun 25, 2025
Questions and answers
How many trucks does Great Southwestern Construction Inc have?
Great Southwestern Construction Inc reports 314 power units (trucks, tractors and buses) and 357 drivers, 357 of them with a commercial license. That is the 1,748th largest fleet among US trucking carriers. Its trucks drove 4.46 million miles in 2024.
Is Great Southwestern Construction Inc a safe carrier?
In 24 months Great Southwestern Construction Inc had 6 reportable crashes, 1.91 per 100 power units (below the 2.98 of all carriers with 10+ trucks). 35.0% of its vehicle inspections took the truck off the road (all inspections: 22.8%). Its latest official safety rating is Conditional (Jul 13, 1998). A crash record does not say who caused the crash.
Reportable crashes of trucks and buses: a death, an injury or a vehicle towed away. A crash record does not say who caused the crash. Recent months can still grow as late reports arrive. Out-of-service rate: the percent of roadside inspections that took the driver or the vehicle off the road until a serious problem was fixed. Carriers with few inspections have rates that swing a lot. Fleet, drivers and miles as the carrier reported them. Official public data, updated daily.