NHDOT Permits

Important News and Announcements

    • Seasonal move permits will start on April 20, 2024 for this year and end on November 23, 2024.
      Saturday moves: Permit vehicles may travel on designated routes from 30 minutes prior to sunrise until 30 minutes after sunset Monday through Friday and from 30 minutes prior to sunrise and until 12 PM on Saturdays from April 20, 2024 to November 23, 2024. Saturday permit travel is limited to 30 minutes prior to sunrise until 9 AM on I-95, and from 30 minutes prior to sunrise and until 12 PM on other state roads from June 1, 2024 to August 24, 2024. Permit travel is not authorized on holidays and holiday weekends.
      Nighttime/Construction moves for DOT construction projects: A State Police escort will be required for all nighttime permit moves. All other conditions on the permit will remain in effect for the duration of the permitted move. State Police requires 48 hour notice. Call: 1-800-443-5268 or 1-603-271-6298. Carrier to provide a hard copy of the permit to the State Police escorts prior to start of the escort. Select the Saturday Morning Move or Nighttime Move option on the load page of the permit application beginning April 20,2024.
  • Spring Thaw Restrictions
    • The maximum allowable vehicular weight on posted sections of State Highways is 30,000 pound gross weight, or the cumulative width in inches of all tires contacting the road surface multiplied by 300, whichever is less. Under State Law (RSA Section 236:3-a), trucks carrying home heating oil, processed milk products, maple sap, and septic pumper trucks are exempted from seasonal bans with the approval of NHDOT District Engineers.
  • NHDOS Additional Certification and Registration and NHDOT Oversize/Overweight Permits
    • Carriers are not allowed to utilize NHDOS Additional Certification and Registration issued per RSA 266:18-d combined with permits issued by the NHDOT Oversize/Overweight (OS/OW) Permit Office. Single trip permits, Annual Permit Supplemental permits, and Emergency permits are issued by NHDOT OS/OW Permit office for actual weight and dimensions. Any non-divisible load that exceeds the legal weight on an annual permit shall apply for a supplemental permit with the actual weight to assure the route provided can be safely traversed.
  • Password Change Required
    • Change in password is required every 90 days. This a Payment Card Industry (PCI) standard designed to ensure that ALL companies that accept, process, store or transmit credit card information maintain a secure environment.
  • Route Surveys
    • Loads greater than 110 feet in length and/or greater than 13 feet 6 inches in height require a Route Survey. Route Surveys may be required for other conditions as determined by NHDOT. The Route Survey form will be generated by NHDOT Permits based on the load information and route generated by the system. The applicant is required to download the system generated Route Survey form, complete the form by the applicant or a Route Survey company on behalf of the applicant, and upload the Route Survey form with the permit application. Route Surveys will be saved in the system and can be re-used by the same carrier for the same load criteria and route for up to 30 days or less based on changes to transportation infrastructure of restriction conditions.

      Submittal of a completed and signed route survey is an attestation that the route has been surveyed by driving the route provided on the route survey form and the vehicle and load can safely complete the trip including all dimensions provided on the route survey form. Submitted route surveys must include any obstructions, dimensional conflicts, special driving directions including lanes of travel, speeds, and traffic control requirements. Route surveys are part of the information the applicant provides to obtain a permit and are a condition of the permit. The Driver's signature on the permit certifies that all information is accurate and complete. Permits are signed under penalty of unsworn falsification pursuant to New Hampshire RSA 641.3.
  • Construction Travel Restrictions and Annual Road Postings
    • All construction, maintenance, parade, and annual spring road postings on NHDOT maintained roads are managed within the restriction manager of the new permitting system. Details of restrictions can be obtained by clicking or hovering over the restriction(s) which are shown in red after the route is generated by the system on the routing page.
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  • OSOW permit applications will be processed in the order received on a time-available basis. OSOW permit applicants that desire permits in a timely manner should select the default route provided by the permitting system. Typically, OSOW permits utilizing the default route are auto-issued by the permitting system for permits up to dimensions and weights that are classified as a supermove and for permits that do not require any engineering review.
  • SYSTEM NOTICE: Following the most recent update to NHDOT Permits, Applicants who utilize the copy feature for Supplemental single trip permits will need to create a NEW supplemental permit for each move until further notice.
     NHDOT Oversize/Overweight Permit Office     
  • PO Box 483 | 7 Hazen Drive, Concord, NH | 03302-0483
  • (603) 271-2691 | (603) 271-6084
  • nhdotpermits@dot.nh.gov

Copyright 2015. State of New Hampshire