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Mississippioperating inDelaware
Standard Federal — 80,000 lbs GVW, federal rules only

Delaware

Interstate GVW
80,000 lbs
Height Limit
13 ft 6 in
Width Limit
8 ft 6 in
Permits Honored
No

Weight Limits

Delaware interstate GVW limit: 80,000 lbs. Per-axle limits: Single axle 20,000 lbs, Tandem axle 34,000 lbs, Tridem axle 42,000 lbs. Federal bridge formula applies.

Size Limits

Height: 13 ft 6 in. Width: 8 ft 6 in. Trailer length: 53 ft (semitrailer). Overall combination length: No overall limit for tractor-semitrailer.

Oversize/Overweight Permits

Online Oversize/Overweight Permit System through DelDOT Fees: Single-trip: $25; Annual: $100+. Mississippi oversize permits are not directly honored in Delaware. You will need to obtain a Delaware-specific permit for oversize/overweight loads. Apply online: https://deldot.gov/osow/application/ Enforcement: Weigh stations; portable enforcement on US 13 and US 301.

Exemptions

Agricultural: Agricultural vehicles exempt on non-interstate roads.

Official Source

For the most current weight and size regulations, permit applications, and seasonal restriction updates, visit the official Delaware DOT page at https://deldot.gov/osow/. Contact the Delaware Department of Transportation for specific routing questions.

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Law last updated: 2025Row last reviewed: May 8, 2026

Weight and size limits are subject to change. Always verify current limits on the official state DOT website before travel. Seasonal restrictions, bridge postings, and local ordinances may further reduce allowable weights. Data reflects 2025-2026 regulations where available.