Wisconsin Department of Transportation

Alert: The following services will be unavailable on Saturday, January 5, 2013 from 12 a.m. (midnight) to 6 a.m. CST due to system maintenance.

Hours of operation for oversize/overwidth permitted vehicles -- Effective August 1, 2014

Two newly revised Wisconsin Administrative Rules (TRANS 254 and 255) effective August 1, 2014, expand the times of day oversize vehicles can operate on state highways during weekends (Friday - Sunday). The rules also relax vehicle size limitations to better reflect traffic congestion data and physical improvements to the Milwaukee County Expressway System.

Vehicles that are overweight only, unless specified otherwise in the permit, may operate 24 hours a day, including weekends and holidays.

Smaller size vehicles with permits -- If size does not exceed 12’ 00” wide, 13’ 06” high or 150’ 00” long:

  • No hours of operation restrictions in 67 counties unless specified on an individual permit.
  • If traveling in Columbia, Dane, Milwaukee, Rock or Waukesha counties, vehicle may not be operated:
    • Between 4 p.m. and 8 p.m. on Sunday
    • Between 4 p.m. and 8 p.m. on Friday between the 4th Friday in May and Labor Day
    • Between 4 p.m. and 8 p.m. on the evening before a “Restricted Travel Holiday” and on the day of the holiday, except if July 3 falls on a Saturday
  • Unless other hours are specified on an individual permit

Larger size vehicles with permits -- If size is greater than 12’ 00” wide, 13’ 06” high or 150’ 00” long, the vehicle may not be operated:

  • During the hours of darkness
  • Between 4 p.m. and 8 p.m. on Friday between the 4th Friday in May and Labor Day
  • During the period beginning at noon on Saturday and continuing until sunrise Sunday
  • Between 4 p.m. and 8 p.m. on Sunday
  • From noon the day before a Restricted Travel Holiday until sunrise the day after the holiday
  • Unless other hours are specified on an individual permit

If traveling on the Milwaukee County Expressway greater than legal width, height or length,* the vehicle may not be operated (except on US 45 between West Florist Avenue and West Hampton Avenue and on I-94 between Waukesha line and 108th Street):

  • Between 6 a.m. and 9 a.m. and between 3 p.m. and 6 p.m. Monday through Thursday
  • Between 6 a.m. and 9 a.m. and 3 p.m. and 8 p.m. Friday
  • Between 3 p.m. and 8 p.m. Sunday

*Maximum allowed dimensions on the Milwaukee County Expressway are 14’ 0” wide, 14’ 06” high or 150’ 00” long.

Notice: Construction in the Zoo Interchange in Milwaukee County will limit movements of OSOW traffic beginning in October. Carriers are strongly encouraged to verify their route through 511 Wisconsin travel info. or WisDOT's oversize/overweight automated issuance system prior to departing with an OSOW load.

If you have questions:

  • Email: oversize-permits.dmv@dot.wi.gov
  • Call: (608) 266-7320
  • FAX: (608) 264-7751
  • Write to the address below:

    Wisconsin Department of Transportation
    Motor Carrier Services
    PO Box 7980
    Madison, WI 53707-7980

Questions about the content of this page:
Motor Carrier Services, oversize-permits.dmv@dot.wi.gov
Last modified: July 31, 2014

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