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Office of Materials & Road Research
Seasonal Load Limits
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May 28, 2026 - Full-summer overweight permits available in north-central and north frost zones
May 07, 2026 - Spring load restrictions end in north-central and north frost zones Full-summer overweight permits available in central frost zone
May 04, 2026 - Full-summer overweight permits available in south, southeast and metro frost zones
Apr 27, 2026 - Spring load restrictions end in central frost zone
Apr 16, 2026 - Spring load restrictions end in south, southeast and metro frost zones
Apr 03, 2026 - Exceptions to the 2026 restriction map
Mar 27, 2026 - Exceptions to the 2026 restriction map
Mar 20, 2026 - Winter load increases end and spring load restrictions start in north frost zone
Mar 18, 2026 - Winter load increases end in north-central frost zone Spring load restrictions start in north-central frost zone
Mar 06, 2026 - Winter load increases end in central frost zone Spring load restrictions start in central frost zone
Mar 03, 2026 - Winter load increases end in the metro frost zone. Spring load restrictions start in south, southeast and metro frost zones
Feb 24, 2026 - Winter Load Increases (WLI) end in south and southeast frost zones
Dec 29, 2025 - Winter load increases begin in the south and southeast frost zones
Dec 12, 2025 - Winter load increases begin in the central and metro frost zones
Dec 08, 2025 - Winter load increases begin in the north and north-central frost zones
May 30, 2025 - Full-summer overweight permits available in north frost zone
May 15, 2025 - Full-summer overweight permits available in central and north-central frost zones
Apr 24, 2025 - Full-summer overweight permits available in south, southeast and metro frost zones; Spring load restrictions end in central, north-central and north frost zones
Apr 10, 2025 - Spring load restrictions end in south, southeast and metro frost zones
Mar 18, 2025 - Exceptions to the 2025 restriction map
Mar 13, 2025 - Winter load increases end and spring load restrictions start in north frost zone
Mar 12, 2025 - Exceptions to the 2025 restriction map
Mar 03, 2025 - Winter load increases end in north-central frost zone Spring load restrictions start in central and north-central frost zones
Feb 27, 2025 - Winter load increases end in the central frost zone. Spring load restrictions start in south, southeast and metro frost zones
Feb 24, 2025 - Winter Load Increases (WLI) end in south, southeast and metro frost zones
Jan 09, 2025 - Winter load increases begin in the metro, south and southeast frost zones
Dec 19, 2024 - Winter load increases begin in the central frost zone
Dec 16, 2024 - Winter load increases begin in the north-central frost zone
Dec 12, 2024 - Winter load increases begin in the north frost zone
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