DENVER -- Southbound Colorado Boulevard was closed at Interstate 25 on Wednesday morning because of a water main break.
The break to the 8-inch main happened about 5 a.m. at Colorado Boulevard and Buchtel Boulevard.
With temperatures well below zero, the water quickly turned to ice, making for hazardous conditions.
The Denver Police Department closed the off-ramp from I-25 to southbound Colorado Boulevard.
Drivers can take the ramp and continue straight through the light to the frontage road that then goes to Evans Avenue and back to Colorado Boulevard.
Denver Water said because of the weather conditions, repairs are going to take all day and advised people to avoid the area.
Six commercial businesses were without water service because of the break until about 2:30 p.m.