Oversize loads on the Kansas Turnpike: width, height and weight limits

A Kansas permit can take a wide load onto the Kansas Turnpike, but the Turnpike plays by its own size rules. Its authority issues no permits, yet it decides which wide, long and tall loads may enter, and on which days. A load that Kansas lets run any day of the year can be held to four weekdays on the Turnpike.

The short version

There’s no separate Kansas Turnpike permit. A K-TRIPS permit from KDOT can route a trip over the Turnpike, and the Kansas Turnpike Authority (KTA) adds its own limits on those 236 miles. A load over 12 feet wide or 125 feet long needs KTA’s go-ahead before it enters (its page calls it pre-authorization). Over 14 feet wide, it moves only Monday to Thursday, 8:30 a.m. to 4:30 p.m., with at least one escort. Over 14 feet high, a trooper measures it at the entrance. Permigo files the K-TRIPS permit for $20. Permigo read KTA’s pages on October 11, 2026.

Kansas’s own rules are on the Kansas page. Permigo’s calculator prices a Kansas route, but it can’t tell whether the route uses the Turnpike.

What the Kansas Turnpike is

The Kansas Turnpike is a 236-mile toll road from the Oklahoma border to Kansas City, run by the Kansas Turnpike Authority (KTA’s About page). KTA, a quasi-public authority created in 1953, sets the Turnpike’s own rules for oversized vehicles, and Kansas Highway Patrol Troop G patrols the road.

KTA’s limits apply only on these stretches. The rest of I-35, I-70 and I-470 in Kansas are ordinary state highways; there a Kansas permit’s own rules apply. A trip that runs on into Oklahoma or Missouri needs that state’s permit as well: see the Oklahoma page and the Missouri page.

Do you need a separate Kansas Turnpike permit?

No. KTA issues no permit of its own. In the permits Permigo files, K-TRIPS routes trips over the Turnpike and lists those miles like any other road on the route, and KTA’s tolling page says oversized vehicles “must follow routing guidelines and permits as required by the state.”

KTA’s Oversized Vehicles page adds that special permits from KDOT “are not required to move oversized loads on the Kansas Turnpike.” But a load reaches the Turnpike on state roads, and those need the K-TRIPS permit. What KTA adds is its own size rules, and its go-ahead before the widest and longest loads enter.

The Turnpike’s limits beside a Kansas permit

The Kansas column shows how far a routine Kansas permit goes before a load becomes a superload. The Turnpike column shows where KTA’s own rules start.

Kansas Turnpike width restrictions for wide loads

Width decides most of it, and the table has each step.

Both keep a wide load off the road at night. Kansas law bars a permit load over legal width or length from 30 minutes after sunset to 30 minutes before sunrise, the Kansas Highway Patrol notes, and KTA keeps anything over 8 feet 6 inches wide off at night “except in emergency or disaster situations.” The week is what changes. A load over 14 feet wide that Kansas lets run every day of the year, holidays included, moves on the Turnpike only Monday to Thursday, 8:30 a.m. to 4:30 p.m., never Friday to Sunday.

On the Kansas Turnpike, a load over 14 feet wide needs at least one escort vehicle. Kansas’s own rule starts escorts at 14 feet on roads with fewer than four lanes and at 16 feet 6 inches on roads with four or more. The pilot car guide has Kansas’s escort rules beside the other states’.

Over 16 feet, KTA says a load “will rarely be authorized for any operation on the Kansas Turnpike.” Plan those loads on state highways, where Kansas treats anything over 16 feet 6 inches wide as a superload. KTA’s 1999 rule, K.A.R. 39-1-1, draws looser width lines: 12 feet 6 inches at night and 14 feet by day. The current page is stricter, and Permigo goes by it.

Kansas Turnpike height limit

KTA sets no fixed maximum height. A load over 14 feet high stops at the Turnpike entrance until a Kansas Highway Patrol trooper measures it and allows or refuses the trip. A vehicle that sets off an over-height detector on the way in has to stop and wait for a trooper too.

Kansas’s legal height is also 14 feet, so any load on a height permit gets the check. On state highways, a routine Kansas permit goes up to 18 feet high.

Kansas Turnpike length and weight limits

KTA’s length line is 125 feet. Over it, a load needs KTA’s go-ahead first and can’t run at night except in an emergency or disaster. Below it, KTA’s page adds nothing for length, and a load on a Kansas permit for length keeps that permit’s daylight-only hours. KTA’s 1999 rule goes further and bars any vehicle over 119 feet long, so ask KTA before planning a load between 119 and 125 feet. A routine Kansas permit goes to 126 feet.

For weight, KTA’s current page gives no limit. Its 1999 rule bars any vehicle over 120,000 lb gross, or over the axle weights in Kansas law. A July 2024 review of KTA’s regulations, published by the Kansas Legislative Research Department, says KTA’s overheight and overweight policy now differs from that rule, so call KTA before planning a Turnpike trip over 120,000 lb. A routine Kansas permit goes to 150,000 lb.

Legal-weight trucks get more on the Turnpike, the Kansas Highway Patrol says: 22,000 lb on a single axle against 20,000 lb elsewhere, and double 53-foot trailers. Triple trailers run only on the Turnpike and its set access routes, on a special vehicle combination annual permit. The weight limits guide sets Kansas’s weights beside the other states’.

Mobile homes follow the same width, height and length lines. Each needs its own truck-tractor built to tow mobile homes, plus the flags, lights, signs and insurance Kansas requires.

Before a load enters the Turnpike

Two things the tables don’t show. KTA leaves it to the driver to judge whether the entrance and exit have room for the load. And KTA can restrict some or all oversize loads for a while because of weather, road or construction conditions. Its 2026 construction list includes bridge raisings at mileposts 1, 2, 3, 10 and 11 on I-35, near the Oklahoma border, and KTA sends drivers to KanDrive, the state’s road conditions site, to see how its work affects traffic.

Permigo files the K-TRIPS permit, Turnpike miles included, for $20. Getting KTA’s go-ahead stays with you; KTA’s line for questions about oversized vehicles is (316) 682-4537, ext. 2202. For the K-TRIPS permit, Permigo needs the load’s dimensions, axle weights, route and date.

Get a Kansas permit quote →

Kansas Turnpike tolls for semis and oversize loads

There’s no Turnpike fee beyond the toll. KTA sets the toll as a flat rate per mile by vehicle class, which is the axle count its in-lane system reads, so a semi pays by its axles and the miles it drives. The Turnpike has been cashless since July 2024: a transponder such as KTAG, PrePass Plus or BestPass gets the lower rate, and a vehicle without one is billed by license plate. KTA’s tolling page lists no separate toll for oversize loads. The K-TRIPS permit’s own fee is in the cost guide.

Who to call

KDOT issues the permit, KTA sets the Turnpike’s limits, and the Kansas Highway Patrol measures tall loads at the entrance. Permigo checked the contact details below on October 11, 2026.

Next: Kansas’s permit and escort rules →