Nebraska Oversize Load Permits, Regulations & Axle Rules

Nebraska calls its permitted loads overdimensional, not oversize, and the distinction matters because the state splits its rules sharply between overdimensional permits and overweight-only permits. An overdimensional load is confined to a daylight window, 30 minutes before sunrise to 30 minutes after sunset. An overweight-only load (heavy but within legal size) faces none of those time limits and may run 24 hours a day, seven days a week, including nights, weekends, and holidays.

Six holidays block overdimensional travel entirely. The blackout windows run longer than the calendar days: each runs from noon the day before the holiday through sunrise the morning after, which can swallow four to five days of scheduling. The six are Memorial Day, Independence Day, Labor Day, Thanksgiving, Christmas, and New Year's. A separate list of state holidays (Martin Luther King Jr. Day, Presidents Day, Arbor Day, Juneteenth, Indigenous Peoples' Day, Veterans Day) only closes the permit office; travel on a permit already in hand is still allowed on those days.

Nebraska has no statewide Saturday or Sunday ban for overdimensional loads, but two metro peak-hour curfews work as weekday speed bumps. In the Omaha urban area, overdimensional permits are not valid Monday through Friday 7:00 AM to 9:00 AM and 4:00 PM to 6:00 PM. The Omaha zone is bounded by NE-36 to the north, NE-31/US-6 to the west, NE-370 to the south, and the Iowa border to the east, and the curfew applies to interstates within the zone, including I-80 from the Iowa border to the Gretna interchange. Lincoln's curfew runs the same hours on weekdays but is narrower: state highways within Lincoln's city limits (Highways 2, 6, 34, and 77), and it does not extend to Interstate 80.

Nebraska also runs a football-season embargo with no analog in other states. On University of Nebraska (UNL) home game days, no overdimensional permit traffic is allowed on any Nebraska highway within a large swath of eastern Nebraska bounded by the Iowa border to the west to Highway 14, and from the Kansas line north to Highway 91. Overweight-only permits remain valid during the embargo. Carriers running westbound on I-80 must clear Exit 395 (NW 48th Street) by sundown Friday before a home game; eastbound traffic must clear Exit 409 (Waverly) by then.

Weather halts overdimensional moves when wind creates a hazard, when visibility drops below half a mile, when rain, sleet, or snow is falling, or when road surfaces are slippery from ice, packed snow, slush, or frost. Wet pavement alone or wind under 25 mph does not qualify as inclement weather. Overweight-only single-trip permits are not restricted by weather at all.

Nebraska does not authorize continuous 24-hour movement for any overdimensional load class.

Nebraska's most distinctive carve-outs cover agricultural freight and hay, and several of the agricultural exemptions vanish once a load reaches the Interstate.

Implements of husbandry moving temporarily during daylight in normal farm operations are exempt from length restrictions on state highways. Farm equipment dealers may drive, deliver, or pick up equipment during daylight hours in their home county or an adjoining county, as long as height doesn't exceed 15'6". Combines may move up to 18 feet wide in daylight; a combine wider than 18 feet may only move for 25 miles or less and requires a pilot vehicle or flag person. Combines transported by truck-tractor semitrailer on non-interstate routes may have rear overhang that pushes the semitrailer (load included) up to 63 feet, even though the 53-foot semitrailer body limit still applies. Farm equipment on I-80 requires a separate Annual Implement of Husbandry Permit available to dealers only. A stretch of US-34/US-75 Expressway between Bay Road and the US-34 interchange requires a free special permit for landowners and farm equipment dealers accessing farm ground across the Platte River.

Baled livestock forage may move without a permit on non-interstate roads up to 12 feet wide, 15'6" high, and 59'6" semitrailer length including load, daylight only. On the Interstate the same dimensions apply but the move requires an Interstate Baled Livestock Forage Permit. Unbaled livestock forage vehicles, loaded or empty, may move on non-interstate roads up to 18 feet wide, 18 feet high, and 65 feet long in daylight with no permit. Interstate is not an option for unbaled forage regardless.

Seasonally harvested products get two-tier overweight relief. Within 70 miles and without a permit, a vehicle moving crops from field to storage or market may carry up to 15 percent over the maximum tandem axle, axle group, and gross weight limits, provided the carrier holds a signed statement of origin and destination. Single axles stay at 20,000 lbs. With a permit ($25 per 30-day period, renewable up to four times for a maximum of 150 days per year), the range extends to 120 miles, covering up to 15 percent over maximum weight and 10 percent over maximum length. Neither the permit nor the no-permit exemption applies on the Interstate.

Custom harvest equipment (wheat, soybeans, or milo, April through November) may run non-interstate as a truck-tractor with two trailers, with the carrying-unit portion (excluding the power unit) up to 81'6" including coupling devices. Public utility and construction and maintenance equipment is exempt from length restrictions at any time.

Nebraska uses the standard term Superload. A move crosses into that tier when gross weight exceeds 250,000 lbs or overall length exceeds 200 feet. Either condition alone is sufficient, and there's no width or height threshold that independently forces a load into the Superload category.

Every Superload single-trip permit must be reviewed and approved by the Lincoln Permit Office before it can issue. The application may need to go further: Bridge Division review, District Engineer review, or both may be required before the permit is finalized. The process can take up to five working days once the application is complete, and the request may be required in writing.

The weight side of Superloads has an axle-configuration nuance. Nebraska generally caps single-axle weights at 20,000 lbs under a standard permit, but the department has discretion to allow higher single-axle weights on a Superload when the load is distributed across more than one lane. To qualify, the interior span between the outermost axles must be at least 14 feet. A drawing depicting axle weights, spacings, and all load dimensions is required as part of the application.

For any load exceeding 150 feet in overall length (a subset of Superload territory by the time length reaches 200 feet, but also covering some loads that haven't yet hit the Superload threshold), Nebraska adds operational requirements on top of standard permitting. The route must be pre-run by the carrier to verify the load can complete every turn, navigate every overhead clearance, and do so without crossing medians, entering oncoming lanes, using unpaved shoulders, making three-point turns, or backing against traffic. An NDOT survey of the route must be physically attached to the permit; the permit is invalid without it. If multiple loads travel together, they must keep at least 60 miles of spacing. Special maneuvers are noted as additional provisions directly on the permit face.

Self-propelled specialized mobile equipment with seven or more axles requires a route review by both the Permit Office and the Bridge Division before any permit issues.

Nebraska's route-survey obligation kicks in at two distinct thresholds, and the entity responsible for the survey differs between them.

For any load at or above 16 feet in height, the carrier, not the state, must conduct a pre-run route survey before the permit will issue. The survey must be provided to the Nebraska Department of Transportation (NDOT) in writing as a condition of issuance; the department won't release the permit until it's on file. At that same 16-foot height threshold, the carrier must also contact every electric utility with high voltage conductors and infrastructure crossing over the roadway along the proposed route, and arrange with each utility for the safe movement of the load under their lines. This utility notification must be done before the permit issues, and the carrier must submit a signed affirmation under oath that the contacts were made. A pole car to the front of the load is also mandatory at 16 feet or above. Below 16 feet but above 14'6", a pole car may be required at the department's discretion, though no written survey is triggered.

For any load exceeding 150 feet in overall length, the carrier must pre-run the route and NDOT must conduct its own survey, which must be attached to the permit. Without the NDOT survey attached, the permit is legally invalid and the load cannot move.

For Superloads (over 250,000 lbs or over 200 feet long), the Lincoln Permit Office coordinates review that may involve the Bridge Division, functioning as the structural clearance analysis for the route.

Beyond those hard triggers, any overdimensional load may be required to provide a written route survey at the department's discretion. That authority applies across the full spectrum of overdimensional moves, not just the heaviest or longest.

Nebraska does not have a law-enforcement escort program for overdimensional or overweight loads. The Nebraska State Patrol appears in the administrative code in enforcement and road-hazard determination roles, not as a provider of escorts for permitted moves. There's no codified weight, width, height, or length threshold that triggers a law-enforcement escort, and no discretionary police escort program. All escort requirements are fulfilled by civilian escort vehicles.

Civilian escorts operate on a codified scale. On divided highways (interstates, expressways, rural divided roads), a single escort rides to the rear of the load; on undivided two-lane roads, it rides to the front. Loads 12 to 16 feet wide require one escort. Loads wider than 16 feet require two escorts, one front and one rear, on all road types. Loads wider than 20 feet require two escorts plus a traffic control plan. On length, a single escort is required for loads from 125 to 150 feet overall, and two escorts for anything over 150 feet, again with positioning by road type. Loads under 90 feet long or under 12 feet wide may still have escorts required at the department's discretion.

The rear escort on divided highways is waivable without involving law enforcement: if the trailer carries backward-facing amber flashing, rotating, or strobe lighting clearly visible at 800 feet, and the light is not obstructed by the load, the rear civilian escort is not required on state freeways, expressways, or rural divided highways.

Because Nebraska uses no law-enforcement escort program, there's no arrangement process with the Nebraska State Patrol for permitted load escorts. Carriers coordinate civilian escorts independently; the permit office does not broker that scheduling.