Citation

Sloane E, Stackhouse JL. Highw. Res. News 1967; (29): 40-41.

Copyright

(Copyright © 1967, National Research Council, Highway Research Board)

DOI

unavailable

PMID

unavailable

Abstract

An experiment was conducted in the Yakima area on Washington's Chinook Pass to determine the effect of coal dust on melting snow on the highway. Coal dust was not available for purchase, so stoker grade coal was purchased and spread out on a pavement, crushed as finely as possible by rolling with a steel-tired roller. The coal was sacked and transported to the maintenance station. A helicopter spread the coal dust under direction of highway personnel. It is believed that the thin layer of coal dust melted approximately 4 feet of snow in a three-week period. Some of the coal dust was destroyed by avalanches. It was learned that coal dust has been used for several years for hastening the melting of late winter snow on golf courses in Wenatchee and on wheat fields in Douglas County.

Language: en