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Posted on: March 2, 2020

Spring Road Load Limits

Spring Road Load Limit Sign Posting

The City of Concord will begin posting “No Trucking – Load Limit 9 Tons” signs starting on Monday, March 9, 2020 to protect roads from heavy vehicles during the spring thaw. The road load limits of 9 tons will not affect the average car or truck, but will impact heavy construction vehicles and commercial trucking. Weight restrictions are posted on roads to help minimize additional road damage from heavy vehicles on weakened road structures. Road structures are naturally weakened around this time of year from the frequent freezing and thawing cycles. The fluctuating temperatures can cause the ground to shift, leading to cracks in the pavement. Frost heaves are formed when snow and rain get through the cracks and freeze underneath the roads, expanding the road upwards. As temperatures warm, the ground thaws and the roads contract back down, causing breaks in the pavement, potholes, and road damage. The temporary road load limits help to protect road conditions by minimizing additional stress on weakened road structures.

Road load limits will continue as long as conditions require, but will likely remain in place until the end of March or beginning of April depending on the weather and road conditions. Limits will not be removed until all snow has melted and ditches are clear of any standing water. The City of Concord does not issue permits for drivers for spring load limits. Drivers can call Concord General Services at (603) 228-2737 to request for travel permissions if necessary of 1-2 loads before noon. Find the list of streets that will be posted in Concord and more information at www.concordnh.gov/springoperations.  

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