Iowa Oversize / Overweight Trucking Permits
Iowa Oversize permits OR Iowa Overweight Permits are required when a vehicle or its load exceeds the state feet legal size or weight limits and needs to travel on public highways. These permits ensure compliance with safety standards and protect road infrastructure.
Iowa oversize permit
Phone Number: 270-908-9656
Compare Transport LLC is your go-to source for Iowa oversize permits, Iowa overweight permits, and Iowa DOT permit online services. We help with Iowa Single Trip Permits, Iowa Annual Permits, Iowa trip and fuel permits, and guide you through all Iowa oversize load regulations and Iowa oversize provisions. Need Iowa Iowa trucking permits or services? Call now, we make Iowa permitting fast and affordable.
Iowa oversize regulations
Iowa Legal Dimension Limit
Legal Dimensions for Trucking in Iowa:
- Legal Length in Iowa: A 53 feet semi-trailer with its load is the maximum allowed. Any overhang that causes the total length to exceed 53 feet is not permitted without a special permit. This rule applies regardless of the cargo type, including steel pipes, beams, and construction supplies.
- Width: The maximum width allowed is 8 feet 6 inches.
- Height: Maximum legal height is 13 feet 6 inches.
Iowa Legal Weight Limit
The maximum allowable gross vehicle weight is 80,000 pounds, subject to axle configurations:
Axle weight limits Iowa:
- Single Axle: Up to 20,000 pounds
- Tandem Axle: Up to 34,000 pounds
- Tridem Axle Group: 42,000 pounds (requires at least 8 feet 1 inch spacing between axles)
Iowa Routine Limit: Iowa Oversize and Overweight Limits
Maximum Dimensions:
- Length: Up to 120 feet.
- Width: Up to 18 feet.
- Height: Up to 18 feet.
Maximum Axle Weights With IA Overweight Permit:
- Steer axle Weight: Permit regulations do not provide separate limits for steer axles. Enforcement relies on the tire’s load rating (as printed on the tire sidewall), multiplied by two. Also, you must have a license that covers the weight you intend to permit within Iowa
- Single axle: The limit is up to 20,000 pounds
- Tandem axle: Up to 46,000 pounds
- Tridem axle: Up to 60,000 pounds
- Quad axle: Up to 80,000 pounds
Superload Classifications Any load exceeding these permitted dimensions or weights is classified as a superload.
Iowa oversize permits validity period
To operate legally in Iowa, commercial carriers must secure the appropriate permits based on vehicle size, weight, and registration status. Below is a detailed guide to the validity of all key Iowa trucking permits, including oversize, overweight, superload, IRP, IFTA, TRP, and temporary trip and fuel permits.
- Oversize/Overweight Single Trip Permit
Validity: 5 consecutive days
Purpose: Authorizes one movement of an oversize or overweight load between two locations. - Round Trip Permit
Validity: 5 consecutive days
Purpose: Covers both outbound and return trips for the same load configuration within the validity window. - Multi-Trip Permit
Validity: 60 days
Purpose: Allows unlimited trips between two specified points along a designated route.
Use Case: Ideal for repeated transport of similar loads on the same route (e.g., between a plant and a distribution center). - Annual Oversize/Overweight Permit
Validity: 12 months
Purpose: Enables unlimited trips statewide within Iowa for specific dimensions and weights.
Limitations: Not valid for all load types or axle configurations—applies only within specific size/weight limits (e.g., height up to 15’5″, width up to 12’6″). - IRP Trip Permit (International Registration Plan)
Validity: 72 hours
Purpose: Required for out-of-state registered vehicles that are not apportioned for Iowa.
Function: Temporary registration authority for entry into Iowa without full IRP credentials. - IFTA Trip Permit (International Fuel Tax Agreement)
Validity: 72 hours
Purpose: Needed for carriers not licensed under IFTA but operating in Iowa.
Function: Temporary permit to comply with fuel tax regulations without an IFTA license. - Fuel Permit (Temporary Fuel Use Tax Permit)
Validity: 72 hours
Purpose: For vehicles without IFTA credentials; allows legal fuel usage in Iowa during that period.
Other Iowa Permits That May Be Required:
- Route Approval / Bridge Analysis Permits
Required for very large or heavy loads (superloads), especially if exceeding:
– Length: 120 feet
– Width: 18 feet
– Height: 18 feet
– Weight: 250,000 lbs gross
Function: Ensures the designated route is structurally capable of handling the load. - Superload Permits
For vehicles or loads exceeding routine permit limits.
Requires: Engineering review and specific route authorization.
Permit Validity: Typically 5 days, but must be confirmed per load. - Tow Truck Permit
For oversized towing operations (disabled commercial vehicles)
Validity: Usually tied to a single incident and route.
Operating Time Iowa:
Trucks measuring up to 100 feet long, 11 feet wide, and 14 feet 6 inches high, and staying within legal axle weight limits, may operate at any time day or night, throughout the week as long as the roadway offers a minimum width of 22 feet and includes at least one full travel lane in each direction. Additionally, proper safety lighting must be used as specified in the provisions sheet. Oversized loads may travel from 30 minutes before sunrise until 30 minutes after sunset, including weekends.
Restricted Travel Iowa:
Travel on I-235 in Des Moines is prohibited Monday through Friday from 7:00 AM to 9:00 AM and from 4:00 PM to 6:00 PM. Other highways within Des Moines may also be restricted at the discretion of local authorities during periods of high traffic volume. Be sure to verify any travel restrictions during holidays or holiday weekends.
Tire Requirements for Oversize Loads
- Tires must be in safe operating condition, properly inflated, and meet minimum tread depth requirements.
- The maximum allowable weight per inch of tire width is 575 pounds, or 600 pounds for steer tires.
- Tires must not have protrusions made of any material other than rubber or tire chains, unless specifically approved or required for safety.
Note: From November 1 through April 1, studded tires are permitted, provided that the studs do not extend more than 1/16 of an inch beyond the tread.
Iowa Escort Requirement
For all highways:
Length-Based Requirements:
- Loads exceeding 85 feet require one escort or an amber rotating light is required
- Loads over 120 feet, one escorts is mandatory
Overhang-Based Requirements: Front overhang over 25 feet or rear overhang over 10 feet, one escort, or a revolving amber/strobe light at the rear of the load, is required
Height-Based Requirements: Loads taller than 14 feet 6 inches must be accompanied by an escort equipped with a high pole.
For Four-Lane Roads:
Width -Based Requirements:
- Between 14 feet 6 inches and 16 feet 6 inches, one rear escort or two strobe/amber lights (one on the front power unit, and one on the rearmost point of the load or vehicle).
- If width exceeds 16 feet 6 inches: one escort is required.
For Two-Lane Roads:
Width -Based Requirements: - If the width is greater than half the roadway (up to 14 feet 6 inches) required one front escort is needed.
- If the width exceeds 14 feet 6 inches required one escort is mandatory.
As an alternative to an escort, vehicles may use amber or strobe lights (placed on both the power unit and at the rearmost edge of the load) when the width exceeds half the roadway width, as long as the lane is at least 12 feet wide and has adequate shoulders.
Iowa Banners, Lighting & Flage Requirement
“Oversize Load” signs and red or fluorescent orange flags are required when the vehicle or load exceeds 75 feet in length, 8 feet 6 inches in width, or 14 feet 4 inches in height. Loads with more than 4 feet of rear overhang must display flags. Flags must be attached to the front corners of the towing unit, the rear corners of the load, and at the widest points or any projections. An amber rotating light minimum 7 inches in height and 7 inches in diameter must be used when the overall length exceeds 85 feet, the front overhang is more than 25 feet, or the rear overhang is over 10 feet (the light must be mounted at the rear of the load). If preferred, an escort vehicle may be used instead of an amber light.
Additional Information
Miscellaneous Load Provisions: When only the dimensions of a load exceed legal limits, there is no requirement to remove items such as blades, buckets, or counterweights. However, if the load also exceeds weight limits, these attachments must be transported separately.
Iowa Oversize/Overweight Fee structure
Iowa offers a variety of vehicle and transportation permits, each with its own fee depending on the type and usage. Below is a breakdown of key permit types and their current associated costs:
- Oversize/Overweight (OS/OW) Permit Fees
Single Trip Oversize/Overweight Permit: $35.00
Annual Oversize Permit: $50.00
Annual Oversize & Overweight Permit: $400.00
All-Systems Oversize Permit: $160.00
All-Systems Overweight Permit: $500.00 - Vehicle Title and Registration Fees
Title Fee: $35.00
Lien Recording Fee: $20.00
Fee for New Registration: $10.00 plus 5% of the vehicle’s purchase or lease price
Registration Fees:
– Based on the vehicle’s weight, list price, and model year
– Vehicles aged 12 years or older are typically charged a flat rate of $50 per year, with some exceptions - Temporary and Miscellaneous Permit Fees
o Non-Resident Motor Truck Display Permit: $10.00
o In-Transit Permit: $2.00 - Additional Trip-Based Permit Options
Single Trip Temporary Permit: $10.00
Annual Permit: $25.00
Annual Oversize/Overweight (OS/OW) Permit: $300.00
Iowa Oversize Provisions Sheet Requirement
General Provisions of an Oversize/Overweight Vehicle Permit
In Iowa, a “required provision sheet” essentially refers to the specific requirements and restrictions outlined on an oversize/overweight (OSOW) permit issued by the Iowa Department of Revenue. This sheet details the conditions under which a vehicle can legally operate on Iowa roads when exceeding standard size and weight limitations.
Heavyhaul Oversize Trucking Services in Iowa
Iowa Heavy Hauling Company - Heavy Equipment Shipping
Compare Transport LLC is your go-to choice for the best heavy-haul oversize trucking services across the United States and Canada. As a leading heavy-haul transportation company, we specialize in handling over-dimensional and overweight shipments with precision and expertise.
Our team of experienced heavy haul movers ensures the safe and efficient transportation of your cargo, no matter how challenging the dimensions or weight may be. We pride ourselves on providing top-notch heavy haul trucking services, utilizing state-of-the-art equipment and industry-leading techniques.
With Compare Transport LLC, you can trust that your heavy haul transportation needs are in capable hands. We prioritize customer satisfaction and strive to exceed your expectations with our reliable, timely, and cost-effective services. Experience the excellence of our heavy haul trucking services and let us handle your most demanding transportation requirements. Our Services include Flatbeds Trucking, Lowboy Trucking, Dry Van Trucking, Tractor trailers, Step Deck Trucking, Conestoga Trucking, Reefer Trucking, Intermodal Trucking, Cardo Van Trucking, Heavy Haul Trucking, and Power Only Trucking areas.
Compare Transport LLC is the single STOP for all Oversize / Overweight permits with one easy-to-use application.
Frequently Asked Questions
Iowa oversize permits can be obtained online through our website comparetransportll.com or by calling us at 270-908-9656
In Iowa, vehicles or loads exceeding legal dimensions must obtain an oversize or overweight permit before entering or moving within the state. The Iowa DOT enforces specific height, width, length, and weight limitations.
Iowa oversize permits can be obtained online through our website comparetransportll.com or by calling us at 270-908-9656
Yes. Iowa issues 72-hour trip permits for out-of-state carriers and 5-day fuel permits under IFTA.
Yes, if your load exceeds Iowa’s legal dimensions 8 feet 6 inches wide, 13 feet 6 inches high, or over 80,000 pounds gross weight you must obtain an oversize permit.
You can log in to manage your Iowa oversize permit through Our website comparetransportll.com
Typically, Iowa oversize or overweight permits are valid for five calendar days. During this period, permitted vehicles must complete their route as specified.
80,000 pounds gross vehicle weight
Iowa requires oversize permits for loads exceeding:
- Width: 8 feet 6 inches
- Height: 13 feet 6 inches
- Length: 53 feet for semi-trailers on non-designated routes
Weight: 80,000lbs gross, or 20,000lbs per single axle
Permits must be carried in the vehicle at all times.
8 feet 6 inches
Applications for Iowa oversize permits can be submitted online via our website comparetransportll.com or by calling us at 270-908-9656
The phone number for assistance is 270-908-9656.
Oversize permit fees in Iowa generally start at $35, depending on the dimensions and distance traveled.
Yes, you can get Iowa oversize permit online by calling us at 270-908-9656.
Travel with oversize or overweight loads is generally limited to daylight hours from 30 minutes before sunrise to 30 minutes after sunset. Night travel may be allowed under special conditions with restrictions.
