Oversize Load & Permit Matrix

Oversize load requirements by state

Open a state for its travel hours, pilot car rules, legal width and height, and a link to the official permit office.

• AlabamaLegal height 13 ft 6 inFirst escort at 12 ft 0 in wideDaylight hours only; no night movement for permitted vehicles (ALDOT Rule 450-3-1-.04).
• AlaskaLegal height 15 ft 0 inFirst escort at 10 ft 6 in wideOver-width loads restricted to daylight hours unless equipped with required lighting and retroreflective tape (Hours of Darkness attachment); permits may carry peak-traffic restrictions in urban areas (Anchorage, Fairbanks, etc.).
• ArizonaLegal height 14 ft 0 inFirst escort at 14 ft 0 in wideLoads over 10 ft wide, 14 ft 6 in high, or over 120 ft long move from 30 min before sunrise to 30 min after sunset; night movement from 3:00 a.m. allowed for 10-16 ft wide / 14 ft 6 in-16 ft high loads on non-holiday nights with required escorts (R17-6-401, 402); metro curfews apply over 10 ft wide.
• ArkansasLegal height 14 ft 0 inFirst escort at 14 ft 0 in wideDaylight hours only (NOAA); no movement through Greater Little Rock on I-30, I-40, I-630 7-9 a.m. and 4-6 p.m.; not valid when visibility under 500 ft or in inclement weather.
• CaliforniaLegal height 14 ft 0 inFirst escort at 12 ft 0 in wideYellow routes: 24/7. Green routes with pilot car: daylight to 15 ft wide, darkness to 14 ft wide. Blue/brown routes with pilot car: daylight only on weekdays, no darkness. Loads over 10 ft wide are barred weekdays in curfew zones (LA, SD, SF, Sacramento). Darkness is 30 min after sunset to 30 min before sunrise.
• ColoradoLegal height 14 ft 6 inFirst escort at Not confirmedDaylight (sunrise to sunset) is the baseline. At night, loads up to 12 ft wide need a front flashing yellow light and 2-3 rear flashing yellow lights; over 12 to 14 ft wide need one front pilot on two-lane or one rear pilot on four-lane highways; over 14 ft wide may not move at night without a Chapter 6 special permit. Metro curfews (Mon-Fri): Denver area 6-9 a.m. and 3-6 p.m.; Colorado Springs and Pueblo 7-9 a.m. and 4-6 p.m.; Aspen-Carbondale (SH 82) 7-9 a.m. and 4-6 p.m.; Central City area only 3-11 a.m.; Clear Creek Canyon (US 6) closed at all times.
• ConnecticutLegal height 13 ft 6 inFirst escort at 12 ft 0 in wideSingle trip permits are valid for one trip and return over a three-day period, during daylight hours. Superloads are nighttime only with State Police escort. CTDOT may add restrictions (time of day, construction) on the permit.
• DelawareLegal height 13 ft 6 inFirst escort at 13 ft 0 in wideOversize and overweight loads (Load Codes 1, 2, 4) move sunrise to sunset. Loads up to 75 ft long, 12 ft wide, 14 ft 6 in high and 120,000 lb may be approved for night moves 9 p.m. to 5 a.m. Monday-Friday. Other night moves need special lighting and possibly escorts or State Police.
• FloridaLegal height 13 ft 6 inFirst escort at 12 ft 0 in wideDaytime hours only for loads over 10 ft wide, over 14 ft 6 in high or over 80 ft long; loads up to 10 ft wide and up to 80 ft long may move all days and hours. No travel when visibility is under 1,000 ft. Congested areas barred during peak traffic hours unless the permit authorizes (14 ft and under 16 ft wide, over 85 ft long). Nighttime moves need FDOT approval and law enforcement escorts.
• GeorgiaLegal height 13 ft 6 inFirst escort at 12 ft 0 in wide30 minutes after sunrise to 30 minutes before sunset, unless the permit says otherwise. No permit movement into or through the I-285 perimeter unless picking up or delivering there, and permits are not valid 6-9 a.m. and 4-6 p.m. Monday-Friday. Loads of legal dimensions under 125,000 lb may move continuously. No movement in fog, snow or ice; loads over 12 ft wide may not move when visibility is under 600 ft.
• HawaiiLegal height 14 ft 0 inFirst escort at 12 ft 0 in wideHours are specified on the permit; no statewide daylight/night rule in HAR 19-104. Movement can be barred when the district engineer expects extremely heavy traffic.
• IdahoLegal height 14 ft 0 inFirst escort at 12 ft 1 in wideLoads not over 12 ft wide, 120 ft long and 15 ft high may travel 24 hours, 7 days (black-coded routes and interstate). Larger loads are daylight-only per the ITD pilot/escort map. Loads over 13 ft wide barred 6-9 am and 4-6:30 pm Mon-Fri at listed commuter areas (Boise valley I-84, Coeur d'Alene, Idaho Falls, Twin Falls, etc.).
• IllinoisLegal height 13 ft 6 inFirst escort at 14 ft 6 in wideLegal-size overweight: 24/7. Up to 12 ft wide, 13'6" high, 200 ft long: 24/7 (extra civilian escort at night). Up to 14'6" wide, 15 ft high, 200 ft long: 1/2 hr before sunrise to 1/2 hr after sunset, 7 days. Up to 16 ft wide, 17 ft high: sunrise-sunset Mon-Fri and until noon Saturday. Wider/taller than 16/17 ft: 9 am to 3 pm Mon-Fri.
• IndianaLegal height 13 ft 6 inFirst escort at 12 ft 4 in wideUp to 110 ft long, 10 ft wide, 13'6" high and under 200,000 lbs: continuous 7 days. Over 110 ft long or 10-14'4" wide up to 15 ft high: 1/2 hr before sunrise to 1/2 hr after sunset, 7 days. 14'4" to 16 ft wide: same hours, Mon-Fri. Over 16 ft wide, over 15 ft high or over 200,000 lbs: Mon-Fri 8:30 am to 3:30 pm.
• IowaLegal height 13 ft 6 inFirst escort at 12 ft 0 in wide1/2 hour before sunrise to 1/2 hour after sunset. Night movement allowed (1/2 hr after sunset to 1/2 hr before sunrise) for loads up to 12 ft wide, 14'6" high, 100 ft long with legal axle weights and extra lighting/escort conditions.
• KansasLegal height 14 ft 0 inFirst escort at 14 ft 0 in wideOverdimensional loads: daylight only (K.S.A. 8-1911 bars movement from 30 minutes after sunset to 30 minutes before sunrise; also not when visibility is under 1/2 mile or roads are icy/snow packed). Overweight-only loads may move at night. Permit may restrict peak hours (7-9 am, 4-6:30 pm) in Kansas City, Lawrence, Leavenworth, Leawood, Lenexa, Olathe, Overland Park, Shawnee, Topeka and Wichita, except for pickups/deliveries in those cities.
• KentuckyLegal height 13 ft 6 inFirst escort at 12 ft 0 in wideOW/OD moves (except mobile homes) may travel 24 hours a day unless otherwise noted on the permit. Mobile homes: Monday-Saturday daylight hours only. No travel in Boone, Kenton, Campbell, Fayette and Jefferson counties or at the Owensboro KY 2155 bridge Mon-Fri 7-9 am and 4-6 pm.
• LouisianaLegal height 13 ft 6 inFirst escort at 12 ft 0 in wideNormal permit hours are sunrise to sunset (NWS). Loads over 12 ft wide are barred Mon-Fri 7-9 am and 3:30-5:30 pm on interstates in parts of Shreveport, Monroe, Lake Charles, Baton Rouge and New Orleans; over 12 ft wide not in New Orleans 7-9 am and 3:30-6 pm Mon-Fri on non-interstate. Night/inclement-weather movement generally prohibited except loads with no projection, legal width and length, height 14 ft 4 in or less and not over 120,000 lb.
• MaineLegal height 13 ft 6 inFirst escort at 12 ft 0 in wideDaylight only (30 minutes before sunrise to 30 minutes after sunset). From April 22 to November 18: Mon-Fri daylight and Saturday until 12 PM on designated routes; from June 3 to August 26 Saturday travel is limited to 9 AM on I-95 and 12 PM on other roads.
• MarylandLegal height 13 ft 6 inFirst escort at 13 ft 0 in wideLoads up to and including 225k GVW, 13 ft 11 in wide, 14 ft 6 in high and 139 ft long may move 24/7. Loads 14 ft wide or more: 9:00 a.m. to 3:30 p.m. on any highway. Superloads (over 150,000 lb): day moves 9:00 a.m.-3:30 p.m., night moves 8:00 p.m.-6:00 a.m. Toll, bridge and tunnel curfews noted on permit.
• MassachusettsLegal height Not confirmed — check your permit conditionsFirst escort at Not confirmedNot confirmed — check your permit conditions
• MichiganLegal height 13 ft 6 inFirst escort at Not confirmedSingle-trip permits are for daylight only, Monday through Friday; daylight is one-half hour before sunrise to one-half hour after sunset. Other time limits may be applied on the permit.
• MinnesotaLegal height 13 ft 6 inFirst escort at 15 ft 0 in wideGenerally no restriction unless noted on the permit. Twin Cities/Duluth metro rush hour: no travel weekdays 6:00-8:30 a.m. and 3:30-6:00 p.m. over 14 ft 6 in wide or 110 ft long. Over 16 ft wide in the 7-county Twin Cities metro, travel limited to 12:00-5:00 a.m. Mon-Fri.
• MississippiLegal height 13 ft 6 inFirst escort at 13 ft 0 in wideDaylight hours only for most oversize loads: sunrise to sunset for loads 12 ft wide or less; 30 minutes after sunrise to 30 minutes before sunset for loads over 12 ft. Limited night movement for loads up to 12 ft wide, 150,000 lb, 99 ft long.
• MissouriLegal height 14 ft 0 inFirst escort at 12 ft 6 in wideOne-half hour before sunrise to one-half hour after sunset. Night movement allowed for loads up to 12 ft 6 in wide, legal height and up to 110 ft long. Mon-Fri curfews in St. Louis, St. Charles, Kansas City and Springfield metro (about 6:30-9:00 a.m. and 3:30-6:30 p.m.; KC and Springfield 7-9 a.m. and 4-6 p.m.).
• MontanaLegal height 14 ft 0 inFirst escort at 16 ft 6 in wideInterstate: 24 hours/7 days up to 18 ft wide. Non-interstate: 24 hours up to 10 ft wide, 150 ft long and 15'6" high; anything larger is daylight hours only.
• NebraskaLegal height 14 ft 6 inFirst escort at 12 ft 0 in wideOver-dimensional moves: 30 minutes before sunrise to 30 minutes after sunset. Overweight-only moves may travel 24 hours, 7 days.
• NevadaLegal height 14 ft 0 inFirst escort at 14 ft 0 in wideDaytime travel (permit-specific); night or holiday-hour moves require front and rear pilot cars. Hours of darkness are 30 minutes after sunset to 30 minutes before sunrise.
• New HampshireLegal height 13 ft 6 inFirst escort at 12 ft 0 in wideOversize moves limited to daylight hours: 1/2 hour before sunrise to 1/2 hour after sunset; no moves in inclement weather. Overweight-only vehicles at normal speed are not time-restricted.
• New JerseyLegal height 13 ft 6 inFirst escort at 14 ft 0 in wideOversize permits not valid from sunset to sunrise, when visibility is under 500 ft, or in hazardous conditions (night waiver possible with an extra escort). Overweight-only permits travel 24 hours, 7 days.
• New MexicoLegal height 14 ft 0 inFirst escort at 14 ft 0 in wideDaylight only (30 minutes before sunrise to 30 minutes after sunset) unless continuous movement is specifically authorized on the permit; no movement in inclement weather.
• New YorkLegal height 13 ft 6 inFirst escort at 12 ft 1 in wideMonday to Friday, daylight only (one-half hour before sunrise to one-half hour after sunset); no night travel unless specified on the permit. Loads 14 ft+ wide/high or 90 ft+ long are barred from business districts 7-9 am and 4-6 pm; loads 16 ft wide, 15 ft high or 100 ft long are barred statewide 7-9 am and 4-6 pm.
• North CarolinaLegal height 14 ft 0 inFirst escort at 12 ft 1 in wideSunrise to sunset, Monday through Sunday, for general commodities. Loads over 12 ft wide are barred 7-9 am and 4-6 pm within 10 miles of the city limits of Charlotte, Raleigh, Durham and Chapel Hill. Continuous 24/7 travel only for permits up to 112,000 lbs with no overdimension.
• North DakotaLegal height 14 ft 0 inFirst escort at 16 ft 0 in wideNo overdimensional movement from one-half hour after sunset to one-half hour before sunrise unless authorized by the superintendent; no movement in inclement weather, slippery roads or visibility of one-half mile or less.
• OhioLegal height 13 ft 6 inFirst escort at 13 ft 0 in wideDaylight only, one-half hour before sunrise to one-half hour after sunset. Loads over 12 ft wide are barred 6:30-9:00 am and 4:30-6:00 pm Monday to Friday in 22 listed counties (including Franklin, Cuyahoga, Hamilton, Summit, Montgomery, Lucas).
• OklahomaLegal height 13 ft 6 inFirst escort at 12 ft 0 in wideOversize loads daylight only (30 minutes before sunrise to 30 minutes after sunset); overweight-only loads may travel continuously. Oversize loads barred on Interstates in Cleveland, Oklahoma and Tulsa counties 7-9 a.m. and 3:30-6:30 p.m. Central, Monday-Friday.
• OregonLegal height 14 ft 0 inFirst escort at Not confirmedGenerally daylight only (30 minutes before sunrise to 30 minutes after sunset); non-divisible loads up to 12 ft wide on Interstates (10 ft on other green routes) may move in hours of darkness; district and metro time limits (Attachment H) and construction restrictions apply.
• PennsylvaniaLegal height 13 ft 6 inFirst escort at 13 ft 0 in wideNot permitted sunset to sunrise. In urbanized areas only 3-7:30 a.m. (with extra lighting and pilot cars front and rear), 9 a.m.-4 p.m., and 7 p.m. to sunset; tunnels in Allegheny County 9 a.m.-4 p.m.
• Rhode IslandLegal height 13 ft 6 inFirst escort at 12 ft 0 in wideMost permitted vehicles from 30 minutes before sunrise to 30 minutes after sunset; loads over 10 ft wide, 80 ft long or 130,000 lb restricted Monday-Friday 7-9 a.m. and 3-7 p.m. on designated routes; no night travel except overweight-only envelope vehicles.
• South CarolinaLegal height 13 ft 6 inFirst escort at 14 ft 0 in wideLoads up to 12 ft wide: sunrise to sunset; over 12 to 15 ft wide: sunrise to sunset except near large urban areas 7-9 a.m. and 3-6 p.m. on school days (4:30-6 p.m. otherwise); over 15 to 16 ft wide: 9 a.m.-3 p.m. (school days) or 9 a.m.-4 p.m.; overweight loads up to 130,000 lb may travel continuously on request.
• South DakotaLegal height 14 ft 0 inFirst escort at 16 ft 0 in wideOversize movement is generally daylight only. Night movement is allowed only on Interstates and only if no escort is required, width is 10 ft or less, height is 14 ft 6 in or less, a single unit is 45 ft or less, and a combination is 110 ft or less (other unit-length limits apply).
• TennesseeLegal height 13 ft 6 inFirst escort at 12 ft 7 in wideLoads not requiring escorts: continuous (24/7) travel. Escorted loads must observe rush-hour county curfews, Mon-Fri 7-9 am and 4-6 pm in Davidson, Rutherford, Knox, Shelby and Hamilton counties. Superloads, houseboats and mobile homes: daylight only; site-built houses daylight only unless local authorities stipulate night.
• TexasLegal height 14 ft 0 inFirst escort at 14 ft 0 in wideDaylight only (30 minutes before sunrise to 30 minutes after sunset) unless night criteria are met, e.g. overweight-only loads, or interstate loads up to 10 ft wide and 100 ft long with legal overhangs; emergency night exceptions need front and rear escorts. Source is an older TxDOT Motor Carrier Handbook; verify current.
• UtahLegal height 14 ft 0 inFirst escort at 14 ft 0 in wideLoads over 14'6" high, 12 ft wide, 105 ft long or 10 ft overhang are daylight only; night travel allowed up to 12 ft wide (secondary) or 14 ft (interstate), with pilots as required. Curfew Mon-Fri 6-9 am and 3:30-6 pm for loads over 10 ft wide, 105 ft long or 14'6" high on the Wasatch Front highways listed in R909-2-12.
• VermontLegal height 13 ft 6 inFirst escort at 12 ft 0 in wideOver-width, over-length or over-height loads: daylight only, from 30 minutes before sunrise to 30 minutes after sunset, unless the permit states otherwise. Overweight-only vehicles able to keep traffic flow are not restricted. May be further restricted on heavy-traffic highways. No travel in ice, snow or low visibility for loads 12 ft wide or 80 ft long or more.
• VirginiaLegal height 13 ft 6 inFirst escort at 12 ft 0 in wideNormal travel is sunrise to sunset (some superloads may be required to move in darkness). No permitted travel within city/town limits 7-9 a.m. and 4-6 p.m., except overweight-only or overlength-only (up to 85 ft incl. rear overhang) configurations.
• WashingtonLegal height 14 ft 0 inFirst escort at 14 ft 0 in wideDaylight is the norm; night movement is allowed only if 'Night movement approved' is stated on the permit (dimension envelope up to 12 ft wide, 14 ft 6 in high, 105 ft long is exempt from the night restriction). No movement when visibility is under 500 ft or in hazardous conditions. Commuter-hour curfews on specified highway sections are published with the permit.
• West VirginiaLegal height 13 ft 6 inFirst escort at 12 ft 1 in wideOversize loads may not travel from sunset to sunrise. Loads 14 ft wide or less (any length/height) may travel sunrise to sunset, 7 days a week when weekend travel is requested (WV Turnpike excepted). Wider loads: sunrise to sunset Monday-Friday. Charleston-area curfews: 7-9 a.m. and 4-6 p.m. blocked for escorted loads (daylight time); school-bus-hour curfews on two-lane highways.
• WisconsinLegal height 13 ft 6 inFirst escort at Not confirmedOverweight-only: 24 hours. Loads up to 12 ft wide, 13 ft 6 in high, 150 ft long: no time limits in 67 counties; in Columbia, Dane, Milwaukee, Rock, Waukesha counties not 4-8 p.m. on Sunday, summer Fridays and holiday periods. Larger loads: no travel in darkness, Sunday 4-8 p.m., Friday 4-8 p.m. between 4th Friday in May and Labor Day. Milwaukee County Expressway and Madison Beltline have commuter-hour bans.
• WyomingLegal height 14 ft 0 inFirst escort at 15 ft 0 in wideDaylight hours only, except legal-height, permitted, signed and lighted: single units 60-75 ft, combinations under 100 ft where the single unit exceeds 60 ft, and loads up to 10 ft wide on Interstates may move at night.

Crossing a state line? Compare two states side by side. Unsure of a term? Read the trucking glossary. Planning around a holiday? See holiday travel restrictions by state. Need a temporary permit? Estimate trip permit costs.