Carrier profile · USDOT 506308 · MC-258822 · Updated Jul 18, 2026
Bill Polkinhorn Incorporated
DBA GOLDEN WEST TRANSPORT
12 power unitsavg 11.9 yrRegional · 5 statesCALEXICO, CA100/100
CARRIER ACTIVEMC-258822 ACTIVERATED SATISFACTORY
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 radiusRegional
revealedStates observed44
US statesInspections · 24 mo182182
CA busiestInspection density by state· each tile = a state · shade = inspections, last 24 mo
Home base
CALEXICO, CA
Top corridor
CA
Density
fewermore
State activity ranking· all 4 states · trailing 24 mo
| State | Coverage | Inspections |
|---|---|---|
| CACaliforniaHQ | 178 | |
| NVNevada | 2 | |
| NMNew Mexico | 1 | |
| AZArizona | 1 |