Carrier profile · USDOT 2957603 · MC-2814 · Updated Aug 20, 2026

Thaddeus Spencer

DBA TADCO TRANSPORT

1 power unitavg 7 yrLocal · 2 statesCORVALLIS, OR88/100
CARRIER ACTIVEMC-2814 ACTIVERATED SATISFACTORYHAZMAT
Verified linksFMCSA SAFER

Operations & Lanes

Where this carrier actually runs, revealed by roadside-inspection geography over the last 24 months — not where they claim to operate, shown as state-level inspection density.

Operating footprint· revealed by roadside-inspection geography

Operating radiusLocal
revealed
States observed2
US states
Inspections · 24 mo6
CA busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base
CORVALLIS, OR
1605 NW FORESTGREEN AVE #7
Top corridor
CA ⇄ OR
CA 3 · OR 3
Density
fewermore
Shade = roadside inspections, last 24 mo.

State activity ranking· all 2 states · trailing 24 mo

Roadside inspections by state · THADDEUS SPENCER · trailing 24 months
StateCoverageInspections
CACalifornia3
OROregonHQ3