MnDOT Home Click to view important Seasonal Load Limit updates for 2020-2021
Office of Materials &
Road Research

Frost Zone

Starting Date

Ending Date

Visual Status

Winter Load Increases (WLI)

Visual Status
Normal Legal Loads, Winter Load Increases, Middle-Range and Full-Summer Overweight Permits Available
Normal Legal Loads, Spring Load Restrictions Imminent
Spring Load Restrictions Enforced
Normal Legal Loads, Middle-Range Overweight Permits Available
Normal Legal Loads, Middle-Range and Full-Summer Overweight Permits Available

 North
 North-Central 
 Central
 Metro
 South
 Southeast

Dec 21, 2020
Dec 26, 2020
Jan 04, 2021
Feb 01, 2021
Feb 01, 2021
Feb 01, 2021

Mar 08, 2021
Mar 08, 2021
Mar 04, 2021
Mar 03, 2021
Mar 03, 2021
Mar 03, 2021

Spring Load Restrictions (SLR)

 North
 North-Central 
 Central
 Metro
 South
 Southeast

Mar 08, 2021
Mar 08, 2021
Mar 05, 2021
Mar 04, 2021
Mar 04, 2021
Mar 04, 2021

May 03, 2021
May 03, 2021
Apr 26, 2021
Apr 12, 2021
Apr 26, 2021
Apr 12, 2021

Middle-Range Overweight Permits

 North
 North-Central 
 Central
 Metro
 South
 Southeast

May 03, 2021
May 03, 2021
Apr 26, 2021
Apr 12, 2021
Apr 26, 2021
Apr 12, 2021

  
  
  
  
  
  

Full-Summer Overweight Permits

 North
 North-Central 
 Central
 Metro
 South
 Southeast

  
  
May 10, 2021
Apr 26, 2021
May 10, 2021
Apr 26, 2021

  
  
  
  
  
  

All starting and ending dates begin at 12:01 a.m. and are preceded by at least a 3-day advance notice.  Notice is available on this website, or from a recording at (651) 366-5400 or toll free at 1-800-723-6543, or automatically by subscribing to receive e-mail updates.
MnDOT Technical Memorandum SLL Update  2020-2021 Other Related Information