T0777 Attachment 5 - Spreading Services Guide.pdf

This document constitutes the Solid Chemical Application Guidelines for the New Jersey Department of Transportation's Winter Maintenance Program. The guidelines were developed based on the Manual of Practice for an Effective Anti-Icing Program prepared by the Federal Highway Administration (FHWA) in collaboration with the US Army Cold Regions Research and Engineering Laboratory, Corps of Engineers. The document applies solely to the State of New Jersey and its transportation infrastructure maintenance operations during winter weather conditions.

The guidelines provide operational procedures for the application of solid chemical de-icing agents across five distinct weather event scenarios: light snow storms, moderate or heavy snow storms, frost or black ice conditions, freezing rain storms, and sleet storms. The guidance specifies maintenance and chemical application protocols based on pavement temperature ranges, weather conditions, and traffic levels. Chemical spread rates are prescribed in pounds per lane-mile and vary from 150 to 400 lb/lane-mi depending on temperature, precipitation intensity, and operational phase. Initial operations typically employ pre-wetted solid chemicals, while subsequent operations may utilize either solid or pre-wetted solid formulations. For temperatures below 15°F, the guidelines recommend abrasives rather than chemicals. Key operational principles include conducting initial applications in advance of precipitation events and plowing before chemical applications to ensure effective pavement treatment. The document establishes no pricing terms, contract amounts, or renewal periods, functioning instead as an operational manual to standardize winter maintenance practices across New Jersey's transportation network.