Snowplow trucks take a beating during the winter maintenance season. Salt is a critical component of many winter maintenance operations, but it can have an extremely detrimental effect on the snowplow trucks used to apply it. Transportation agencies are looking for cost-effective, environmentally sensitive practices that produce clear results in reducing or preventing corrosion on snowplow trucks and prolong the life of winter maintenance equipment. Use of an in-house wash bay is one of the ways transportation agencies fight the effects of salt and winter weather on winter maintenance equipment. This synthesis sought to identify best practices for the use of in-house wash bays and other truck washing alternatives such as off-site commercial washing facilities. A national survey of state department of transportation winter maintenance experts gathered information about wash bay use, installation requirements and costs, treatment of wash bay wastewater, and the effectiveness of truck washing alternatives in reducing or preventing corrosion on snowplow trucks. The results of a literature search supplemented the survey findings.