TG
TRI-STATE GENERATION & TRANSMISSION ASSOCIATION INC
DOT 180139ActiveInterstateWESTMINSTER, CO
COMPANY
Authority since
—
MCS-150
2025-08-27 · 3,860,000 mi (2024)
Fleet
295 units · 298 trailers · 180 drivers
Annual mileage (VMT)
3,860,000 mi (2024)
ADDRESS
Physical
1100 W 116TH AVE
WESTMINSTER, CO 80234
WESTMINSTER, CO 80234
Mailing
PO BOX 33695
DENVER, CO 80233
DENVER, CO 80233
CONTACT
Phone
3032543153
Email
tray@tristategt.org
OFFICERS
Primary Officer
TERRI MARRANZINO-RAY
Title
VICE PRESIDENT SUPPORT SERVIC
OPERATION & CARGO
Operation classification
Private Property
Specialty
Auto Transport
Cargo types
9
General FreightMotor VehiclesLogs, Poles, Beams, LumberBuilding MaterialsMachinery, Large ObjectsLiquids / GasesOilfield EquipmentUtilityConstruction
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads. Specialty is our summary of the declared cargo mix.
AUTHORITY
—
Active authority
INSURANCE
None
No coverage on file
RISK GRADE
Moderate Risk
1 risk factors · 4 strengths
OOS RATE
7.1%
3 / 42 inspections
Fleet vs Reality
last 12 months · power-unit VINs from roadside inspections Checking local VIN index…
Moderate Risk
1 risk factor · 4 strengths · 5 data pointsSAFETY PERFORMANCE
Crash Record
8 crashes · 0 fatal · 3 with injuries · 7 tow-away
Clean Inspection Rate
93% — 39 clean of 42 inspections
Out-of-Service Rate
7.1% — driver OOS 0 insp., vehicle OOS 3 insp.
COMPLIANCE & AUTHORITY
USDOT Registration
Status: Active
Operating Authority
No operating authority on file
Authority Events
No authority history events
MCS-150 Filing
Last filed 2025-08-27
INSURANCE
Active Coverage
No insurance policies on file
SUMMARY
No active insurance on file
Low OOS rate 0% (last 24 mo)
Low crash rate (0.2 per 100 trucks/yr)
Low violation rate (0.2/insp)
93% clean inspections
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