Superload Permits: Size, Weight and Route Checks

Whitney S. Johnson · CEO of RouteAll · 4 years running height pole, mostly east coast, escorting data center equipment. · 10 Min Read · Updated October 23, 2026

Material criteria and scheduling claims reviewed October 23, 2026 against the primary agency sources below. Different review levels and source-boundary ambiguities are identified explicitly.

A superload exceeds a state’s routine permit criteria and may require additional route, structure or movement review. Pennsylvania’s published definition includes loads over 201,000 pounds, over 160 feet long or over 16 feet wide. Check every dimension and the applicable permit category; there is no national threshold.

This guide is written from the state regulations, and each number links to the rule it came from.

In one minute: your load becomes a superload when it passes a width, height, length or weight number written into that state's rules. Pass any one of them and the permit stops being routine.

• The state reviews the bridges and structures on the route you asked for.
• A travel plan may be required in writing before the permit is issued.
• Law enforcement may have to be scheduled to escort the move.
• The wait is measured in days or weeks, not minutes.

Cross a state line and the number changes underneath you.

What is a superload?

A superload is a non-divisible load that exceeds the size or weight a state will permit routinely. The applicable process can include permit staff, bridge engineers, route surveys and special movement conditions. The criteria below identify different state categories; they are not interchangeable clearance limits.

Delaware writes the definition most plainly.

Where does oversize end and superload begin?

Oversize begins at the federal width limit and superload begins wherever the state says. Under 23 CFR 658.15, no state may set a National Network width limit other than 102 inches, which is 8 feet 6 inches (8'6"). Above that you need a permit. Far above it, you need a reviewed one.

Which states call it a superload, and at what number?

Check width, height, length, gross weight, axle configuration and route together. The table distinguishes superload criteria from Virginia’s additional travel-plan parameters. A number that does not trigger one criterion can still require review under another.

Weight is only one part of the comparison.

• Kansas describes its superload permit category by gross weight; very large dimensions have a separate large-structure category.
• Pennsylvania includes over-16-foot width and over-160-foot length as well as over-201,000-pound weight. A wide, light load can therefore be a superload.

Georgia is the one to read twice.

• Georgia’s Superload Single listing gives a 150,001–180,000-pound range, or dimensions over its standard limit.
• Over 180,000 pounds moves into Georgia’s Superload Plus category, with bridge analysis. It does not return to ordinary permitting.

What does the state actually review?

Additional review may address bridge capacity, physical clearances, turns, traffic management and other route conditions. MoDOT’s current guidance describes a structure analysis and feasibility study for superloads, followed by a required route survey after the route is approved.

Other states describe the same review in their own words:

• Virginia issues the permit only after review or VDOT engineering analysis finds the configuration will not damage roadways, bridges or structures on the route.
• Missouri may require a minimum of $425 in escrow to cover the cost of a bridge analysis before it will process the application.
• Kansas issues superload permits only for single-trip movements, so there is no annual permit covering this category.
• Damage responsibility depends on permit conditions and applicable law; review the terms for the actual movement.

The analysis is what produces your route. The roads you are given are the roads the bridges allowed.

How much lead time do you need?

Allow for the issuer’s review process before committing a movement date. MoDOT’s May 2026 FAQ gives an approximate two-week turnaround, while Virginia asks for superload applications at least 10 working days before the move. These are planning references, not promised completion times.

Virginia also asks for a written travel plan on the largest moves. Per 24VAC20-82-60, movements over 18 feet wide, 250,000 pounds, 200 feet long or 16 feet high may have to submit one. The plan it describes is detailed.

• Load facts: description, dimensions, weight, and why the load cannot be broken down.
• Route detail: specific origin and destination, with the preferred routes named.
• Law enforcement: written authorization from local police for escort services.
• Utility authorization: written agreement from the utility for handling overhead wires.
• Emergency plan: how emergency vehicles will get past the load.

Alabama coordinates law-enforcement escorts separately. ALEA’s current instructions require an ALDOT application and assigned reference number before scheduling. ALDOT’s superload information directs applicants to obtain permit-office pre-approval before contacting ALEA. Confirm both the permit and escort arrangements before travel.

Route detail matters more on a superload

For a superload, review the approved route together with its engineering instructions, surveys and movement conditions. Approval may depend on a specific configuration or crossing procedure. A detour can bypass the route that was reviewed, so resolve proposed changes with the issuer before travel.

Leaving the route is a different kind of mistake here than on a routine oversize move. Our guide on what happens if you leave your permitted route covers the general consequences.

If your load is nowhere near these numbers, start with do you need an oversize permit? The 4 numbers that decide instead. Escort requirements sit on a separate scale again, and are listed in pilot car requirements by state.

RouteAll reads the permit you already hold and follows the roads printed on it, which is the part that matters once an engineer has chosen them. How that works is on the RouteAll home page.

Superload checks before you roll

Find the superload threshold for every state on your route before you apply, not after. One state's routine oversize permit is another state's engineering review, and the review is what sets your schedule. Start with the state that has the lowest trigger on your lane. The RouteAll driver guides cover the permit side, and RouteAll support: report a permit the app read wrong takes those reports.

Common questions

Further reading

Sources

• PennDOT M-936SLCA, January 2025, width, length and weight superload definition. Read October 23, 2026.
• Virginia 24VAC20-82-60, general superload review and separate travel-plan parameters. Read October 23, 2026.
• GDOT permit categories, Superload Single and Superload Plus. Read October 23, 2026.
• MoDOT Superloads and May 2026 FAQ, routine limits, review and timing. Read October 23, 2026.
• KDOT State Freight Plan, distinct permit categories. Read October 23, 2026.
• Delaware official 2405 manual, sections 3.2.1.3.1 and 5.1.1 use different wording at the 120,000-pound boundary; confirm that boundary directly. Read October 23, 2026.
• ALEA scheduling instructions and ALDOT Superload Information. Read October 23, 2026.
• Delaware, 2 Del. Admin. Code § 2405-3.0, Permit Descriptions and Procedures.
• Georgia, Ga. Comp. R. & Regs. R. 672-2-.01, Definitions.
• Kansas, Kan. Admin. Regs. § 36-1-38, Types of permits.
• Missouri, 7 CSR 10-25.020, section (15), Super Heavy and Large Load Movement.
• Nebraska, 415 Neb. Admin. Code, ch. 3, § 001.27, Definitions.
• Pennsylvania, 67 Pa. Code § 179.9, Issuance of permits.
• Virginia, 24VAC20-82-60, Superload single trip permit.
• Alabama, Ala. Admin. Code r. 760-X-2-.04, Superload Law Enforcement Escort Procedures.
• Federal, 23 CFR § 658.15, Width.

RouteAll reads the permit you provide. It does not issue permits or guarantee compliance. The driver remains responsible for the load. Rules change; verify against the permit and the issuing state before every move. This guide is written from published state regulations, not from operating experience with superloads.