Checked
Tri-State Generation & Transmission Association Inc
USDOT 180139 · Westminster, CO
- Power units
- 295
- Drivers
- 180
- Operation
- Interstate
- Safety rating
- Satisfactory
Carrier details
As registered with FMCSA
- USDOT number
- 180139
- Legal name
- Tri-State Generation & Transmission Association Inc
- Base
- Westminster, CO 80234
- County
- Adams County
- Operation
- Interstate
- Carrier type
- Private
- Hazardous materials
- Yes
- Trucks
- 295
- Drivers with a CDL
- 165
- Miles driven
- 3,860,000 (2024)
- Rating date
- 05/24/1988
- Registered with FMCSA
- 06/01/1974
- Last MCS-150 update
- 08/27/2025
Cargo carried
- General freight
- Motor vehicles
- Logs, poles, beams, lumber
- Building materials
- Machinery, large objects
- Liquids or gases
- Oilfield equipment
- Utilities
- Construction
Fleet and driver counts are self-reported by each company on FMCSA Form MCS-150 and can be out of date. Values that look like typing errors (for example 99,999 trucks for a small company) are treated as not reported. Pages list companies registered as businesses; owner-operators registered as individuals are counted in totals but not named. Check the carrier's current status, insurance and inspection history on FMCSA SAFER.
Other carriers in Adams County
Swipe the table sideways to see more columns.
| Company | Power units | Drivers | Type |
|---|---|---|---|
| Wagner Equipment CompanyUSDOT 408425 | 1,028 | 480 | Private |
| Sturgeon Electric Company IncUSDOT 29762 | 850 | 1,134 | Passenger |
| Navajo Express IncUSDOT 202381 | 296 | 303 | For hire |
| United Food Service IncUSDOT 132048 | 290 | 328 | For hire |
| Offen Petroleum LLCUSDOT 237345 | 274 | 289 | For hire |
| Metco Landscaping IncUSDOT 1090341 | 226 | 234 | Private |
| City of ThorntonUSDOT 1065759 | 208 | 960 | Passenger |
| Brannan Sand & Gravel CoUSDOT 207118 | 191 | 191 | Private |
| Sitewise LLCUSDOT 1034971 | 189 | 435 | For hire |
| Eco - Pan IncUSDOT 1031346 | 176 | 188 | Private |
Frequently asked questions
- What is Tri-State Generation & Transmission Association Inc's USDOT number?
- Tri-State Generation & Transmission Association Inc's USDOT number is 180139.
- How many trucks does Tri-State Generation & Transmission Association Inc have?
- Tri-State Generation & Transmission Association Inc reported 295 power units and 180 drivers on its most recent MCS-150 update (08/27/2025).
- Does Tri-State Generation & Transmission Association Inc have a safety rating?
- FMCSA rated Tri-State Generation & Transmission Association Inc Satisfactory on 05/24/1988.
Source: Federal Motor Carrier Safety Administration, Company Census File · Last updated 10/22/2026