Economic Effects of Lifting the Spring Load Restriction Policy in Minnesota
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Spring load restrictions (SLR) regulate the weight per axle carried by heavy trucks during the spring
thaw period. This policy aims to reduce pavement damage caused by heavy vehicles and extend the
useful life of roads, but it also imposes costs on the trucking industry. A cost/benefit study, based on
the results of surveys of industry costs, a pavement performance model, and a freight demand model,
concludes that the benefits of lifting the existing SLR policy outweigh the additional costs. The cost
of additional damage should be recovered from those who benefit from the change in policy.