Washington (WA) DOT COMPLIANCE
WSDOT JURISDICTION
Lattice Boom Crawler Crane Upperworks Oversize Permits in Washington (2026)
Comprehensive carrier guide for transporting Lattice Boom Crawler Crane Upperworks 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 Lattice Boom Crawler Crane Upperworks 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.
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].
🚦 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: Full amber warning light bar, oversize signs front and rear, 18" red edge flags.
🗺️ Continuous Interstate Corridor: Bordering States for Lattice Boom Crawler Crane Upperworks
Hauling across state lines? Check escort triggers and permit rates in states directly bordering Washington: