Hard freezes are forecast for the next two mornings.
Beginning Tuesday afternoon, city transportation crews will begin spraying bridge decks to keep them from freezing overnight.
Crews from the Tucson Department of Transportation and Mobility Streets Maintenance Division will initiate Operation Freeze in preparation of freezing temperatures forecasted for the next couple nights. Operation Freeze is a safety initiative put into place to make sure city bridge decks are free of ice and safe for motorists to drive over.
During Operation Freeze, crews will place “Wet Road Ahead” signs at bridge entrances and spray magnesium chloride on the bridge decks. Magnesium chloride lowers the freezing temperature of water and prevents ice from forming on a roadway. A light coating of magnesium chloride produces no negative effects on ground water, surface water or vegetation. Magnesium chloride is an effective ice suppressant agent lasting for approximately 10 days. Rainfall diminishes its effectiveness.
People are also reading… About 50 city bridge decks will be sprayed and monitored throughout the evening and into the early morning to make sure ice has not formed at the crossings. Motorists should be aware of crews working around the bridge deck crossings and drive with caution when the possibility of ice exists on the roadways.
The National Weather Service is calling for a hard freeze warning overnight into Wednesday morning and again into Thursday morning for much of the Tucson area. The service says people should protect frost-sensitive plants, wrap or drain outdoor pipes and provide shelter to pets during the overnight hours. The warning will be in place from late Tuesday until 9 a.m. Wednesday, then again late Wednesday until 9 a.m. Thursday.Tags Subscribe to stay connected to Tucson.
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