Types of Iowa Oversize Permits
We offer a full suite of permit solutions, including:
Iowa Oversize Permits: For loads exceeding legal dimensions in length, width, or height.
Iowa Overweight Permits: Required when vehicle weight surpasses state limits.
Iowa Overhang Permits: For loads with significant front or rear overhang.
Iowa Single Trip Permits: For one-time movements of oversize or overweight loads.
Iowa Annual Permits: For frequent carriers needing year-round coverage.
Iowa Permit Validity and Operating Time
Iowa Oversize Permits are valid for five days and must be obtained before entering the state. Vehicles with permits up to 100′ in length, 11′ width, and 14′-6″ height, within permitted axle limits, can travel continuously seven days a week (24/7) if the roadway is at least 22 feet wide with 11-foot lanes and the required safety lighting12. Oversized loads may travel from half an hour before sunrise to half an hour after sunset, including weekends.
Iowa Oversize Regulations and Legal Dimensions
Understanding Iowa oversize regulations is key to safe and compliant transport. The legal maximums without a permit are:
Length: 53′ for a semi-trailer and load.
Width: 8′-6″.
Height: 13′-6″.
Weight: 80,000 lbs gross (Single – 20,000; Tandem – 34,000; Tridem – 42,000 with 8′-1″ axle spacing)1.
Routine Permit Limits allow up to:
Length: 120′
Width: 18′
Height: 18′
Weight: Single – 20,000; Tandem – 46,000; Tridem – 60,000; Quad – 80,0001.
Loads exceeding these are classified as super loads and require special handling.
Iowa Restricted Travel and Route Planning
Travel on Des Moines I-235 is prohibited from 7:00–9:00 am and 4:00–6:00 pm, Monday through Friday. Other highways in Des Moines may also be restricted during heavy traffic. Always check for holiday or weekend travel restrictions before your trip.
Iowa Overweight Permit Map and Online Applications
Planning your route is easier with the Iowa overweight permit map, which highlights authorized roads for overweight travel. You can apply for your Iowa DOT permit online, making the process fast and convenient.
Iowa Permit Costs and Annual Options
The Iowa annual oversize permit cost varies by type. For example, the All-Systems Oversize Permit is $160 per year, while the All-Systems Overweight Permit is $500 per year. Single trip permits are also available for specific moves.
Iowa Trip and Fuel Permits
If your vehicle exceeds 26,000 lbs GVW or has more than two axles, you’ll need Iowa trip and fuel permits or an Iowa fuel permit for legal operation within the state6. These are essential for out-of-state carriers and those not registered under IRP/IFTA.
Iowa Escort, Signs, Flags, and Lights Requirements
Safety is paramount. For loads exceeding certain dimensions, escorts and special lighting are required:
Length over 85′: One escort or amber revolving light.
Overhang: Front over 25′ or rear over 10′ needs an escort or strobe light.
Height over 14′-6″: Escort with high pole.
Width over 14′-6″: Escort or additional lighting, depending on roadway type.
“Oversize Load” signs and flags are mandatory for vehicles and loads exceeding 75′ in length, 8′-6″ in width, or 14′-4″ in height. Flags must be mounted at all corners and protrusions, and an amber revolving light is required for certain overhangs or weights.
Why Choose Unique Trucking Broker?
As your trusted partner, Unique Trucking Broker navigates the complexities of Iowa Oversize Permits, including the latest Iowa DOT overweight permits, Iowa DOT grain hauling regulations, and all compliance requirements. We keep you moving safely and legally, so you can focus on your business.
Contact us today to secure your Iowa Overweight Permits and experience hassle-free, expert permit service from Unique Trucking Broker.
