Document Summary

This document comprises solid chemical application guidelines for the New Jersey Department of Transportation's Winter Maintenance Program, adapted from the Federal Highway Administration's Manual of Practice for an Effective Anti-Icing Program. The guidelines were developed by the US Army Cold Regions Research and Engineering Laboratory and are intended to standardize chemical application practices across the state's winter road maintenance operations.

The document provides comprehensive operational guidance through five detailed tables that specify chemical application procedures across five distinct weather events: light snow storms, moderate or heavy snow storms, frost or black ice conditions, freezing rain storms, and sleet storms. For each weather scenario, the guidelines delineate pavement temperature ranges, initial operational requirements, and subsequent maintenance actions with corresponding solid chemical spread rates measured in pounds per lane mile. Application rates vary by condition, ranging from 150 to 400 lb/lane-mi depending on temperature, precipitation intensity, and traffic volume. Key guidance emphasizes timing applications to prevent snow deterioration and packing, applying chemicals ahead of traffic rush periods, and plowing before chemical applications to ensure effective pavement treatment. The guidelines recommend reducing application rates during lighter precipitation and increasing rates during heavier snow periods, with specific protocols for temperatures below 15°F where chemical application is not recommended and abrasives are preferred for enhanced traction.