The Indiana Department of Transportation (INDOT) spends approximately $30 to $60 million a year on deicing salt and operates fleet 1,000 winter operations trucks distributed among 140 locations. entire is now instrumented with location telematics, all new have integrated dash cameras, spreader application rate plow up/plow down into the telematics link. When storms occur, they varying regional ...

Introduction Safety and mobility are key concerns for State Highway Agencies (SHAs), especially during the winter season when ice and snow accumulation on roads and bridges can create hazardous or impassable driving conditions. Various chemicals, including magnesium, sodium, and calcium chloride, calcium magnesium acetate and urea, are used by SHAs as anti-icing and deicing solutions on transpo...

Widespread use of salts as deicing agents on roads has been perceived as a significant source of environmental and economic damage. Early studies focused on near-road and short-term effects where concentrations can exceed several grams per liter. Evidence is accumulating that the use of salts has significant effects over broader areas, longer time frames, and is affecting a range of ecological ...

Bidirectional flows in a river system can occur under stratified flow conditions and in addition to creating significant errors in discharge estimates, the upstream propagating currents are capable of transporting contaminants and affecting water quality. Detailed field observations of bidirectional flows were made in the Chicago River in Chicago, Illinois in the winter of 2005-06. Using multip...

Contemporary information on road salt runoff is needed for management of water resources in regions experiencing urbanization and increased road density. We investigated seasonal Cl(-) concentrations among five streams in south-central Indiana that drained watersheds varying in degree of urbanization and ranging in size from 9.3 to 27 km(2). We also conducted acute toxicity tests with Daphnia p...