Clear Roads has published its seventh Annual Survey of State Winter Maintenance Data, which compiles data on winter resources, materials and costs from 36 states for the 2020-2021 winter season. The interactive spreadsheet-based tool includes a United States map that displays many of these metrics.
New this year is the inclusion of statewide averages for winter severity. The tool includes seven years of data, and displays averages and changes across winter seasons. See the project page.