T0777 Attachment 5 - Spreading Services Guide.pdf

This document is the Solid Chemical Application Guidelines for an Effective Anti-icing Program prepared by the New Jersey Department of Transportation for its Winter Maintenance Program. The guidelines are based on materials originally developed by the Federal Highway Administration, US Army Cold Regions Research and Engineering Laboratory, and Corps of Engineers in 1996. The document serves as a technical resource for the state's winter maintenance operations.

The document provides operational guidance for the application of solid chemical de-icers across five weather event scenarios: light snow storms, moderate or heavy snow storms, frost or black ice conditions, freezing rain storms, and sleet storms. For each weather event, the guidelines specify pavement temperature ranges, maintenance actions, chemical spread rates measured in pounds per lane-mile, and timing for initial and subsequent chemical applications. Chemical spread rates vary by weather condition and temperature, ranging from 150 to 350 pounds per lane-mile for snow events and from 150 to 250 pounds per lane-mile for frost and freezing rain events. The guidelines emphasize proactive chemical application ahead of traffic rush periods, continuous monitoring of pavement conditions, and adjustment of application rates based on precipitation intensity and pavement temperature trends. No pricing information, contract amounts, option periods, or renewal terms are provided in this technical guidance document.