Summary

This document is the Solid Chemical Application Guidelines for an Effective Anti-icing Program prepared by the New Jersey Department of Transportation (NJDOT) Winter Maintenance Program. The guidelines were adapted from the Manual of Practice for an Effective Anti-Icing Program originally developed by the Federal Highway Administration (FHWA), US Army Cold Regions Research and Engineering Laboratory, and the Corps of Engineers in 1996. These guidelines serve as operational standards for NJDOT's winter maintenance activities across the state.

The document provides comprehensive operational guidance for solid chemical application during various winter weather events, including light snow storms, moderate or heavy snow storms, frost or black ice conditions, freezing rain storms, and sleet storms. The guidelines specify application rates, maintenance protocols, and chemical spread rates based on pavement temperature ranges, weather conditions, and precipitation intensity. Key operational recommendations include: initial chemical application rates ranging from 150 to 350 pounds per lane-mile depending on conditions; subsequent application rates that may increase up to 400 pounds per lane-mile during heavy precipitation; pre-wetted solid chemical applications at lower temperatures; and plowing protocols timed in coordination with chemical application to maximize treatment effectiveness. The guidelines emphasize timing of applications to prevent deteriorating pavement conditions and packed snow development, with specific protocols varying by temperature range (above 32°F, 32°F, 25 to 32°F, 15 to 25°F, and below 15°F). No pricing information, contract amounts, or option periods are included in these operational guidelines.