How much does a single-trip permit cost for heavy hydraulic excavator (40-80 ton) in Washington?

Under WSDOT guidelines, single-trip oversize/overweight permits average $10.00 + mileage, depending on axle configuration and total mileage.

When is a pilot car required for heavy hydraulic excavator (40-80 ton) in Washington?

In Washington, a pilot car is triggered when width exceeds 11'0" on two-lane roads and 14'0" on four-lane interstates. Loads over 15'6" require a lead escort with a calibrated height pole.

Washington (WA) DOT COMPLIANCE WSDOT JURISDICTION

Heavy Hydraulic Excavator (40-80 Ton) Oversize Permits in Washington (2026)

Comprehensive carrier guide for transporting Heavy Hydraulic Excavator (40-80 Ton) across Washington. Review official WSDOT single-trip fees, escort trigger dimensions, curfew hours, and superload bridge thresholds.

⚡ Direct Compliance Summary (Washington DOT)

In Washington, single-trip oversize/overweight permits for Heavy Hydraulic Excavator (40-80 Ton) average $10.00 + mileage base under WSDOT jurisdiction. A front pilot car is legally mandated on two-lane highways when load width reaches 11'0" (and 14'0" on 4-lane interstates). Loads exceeding 15'6" require a certified lead escort with a calibrated height pole.

Legal Authority: Revised Code of Washington RCW 46.44.090 (WAC 468-38 WSDOT Vehicle Size and Weight)

Reviewed by Marcus Vance, PE (Lic #TX-89241)

Single-Trip Permit Fee

$10.00 + mileage

Issued by WSDOT

2-Lane Escort Trigger

11'0"

4-Lane Trigger: 14'0"

Height Pole Clearance

15'6"

Mandatory Lead Escort

Superload Threshold

200,000 lbs

Police Escort / Bridge Review

⚖️ Federal Bridge Formula B Quick Calculator (Washington Interstate Corridors)

Estimate your allowable gross vehicle weight under Federal Bridge Formula B: W = 500 [LN/(N-1) + 12N + 36].

Outer Axle Spread (L in feet):

Number of Axles (N):

🚦 Washington Travel Curfews & Operational Restrictions

Metropolitan Rush-Hour Curfews: Seattle I-5 / I-405, Tacoma, Snoqualmie Pass weather rules

Weekend Travel: Friday sunset restrictions; weekend allowed on select corridors

Safety Equipment: Minimum 4 Grade 70 / Grade 80 tie-down chains (1/2"), boom lashed securely, 18" red corner flags.

🗺️ Continuous Interstate Corridor: Bordering States for Heavy Hydraulic Excavator (40-80 Ton)

Hauling across state lines? Check escort triggers and permit rates in states directly bordering Washington:

Oregon (OR)$8.00 + Weight Table →Idaho (ID)$28.00 →

🚜 Other Specialized Haul Regulations in Washington

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