SEATTLE (CBS Seattle/AP) — The Seattle Transportation Department admits it made a mistake with deicer that caused some accidents Dec. 2 and shut down the West Seattle Bridge.
Road maintenance manager Steve Pratt told a city council committee Tuesday they were trying to get ahead of anticipated freezing weather and Monday night football traffic when they sprayed magnesium chloride on the roadway that afternoon.
KIRO-TV reports it was too warm at the time — more than 40 degrees — and the operator mistakenly applied twice the recommend amount — 30 gallons per lane mile, instead of 15.
“We were trying to be pro-active,” Pratt told the council.
The result? Instead of preventing a slick roadway, the deicer created slippery pavement.
“It was an ‘unfortunate event,’” Pratt added. “A plain and simple errore.”
The department says the road crew will be trained to prevent making the same mistake again.
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