Andy Cross, The Denver Post
This 2009 file photo shows Arapahoe County Deputy Sheriff, Adam Nardi, perform a roadside sobriety test on a man pulled over on the suspicion of drunken driving. 
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Colorado authorities will add extra roadblocks, patrols and officers on the street for five weeks starting on Friday in an effort to fight impaired driving.
The “Heat is On” campaign involves the Colorado Department of Transportation, the Colorado State Patrol and 83 law enforcement agencies from across the state, according to a news release Thursday.
Colorado police report a yearly surge in incidents involving impaired drivers in early fall. Last year, 1,486 impaired drivers were arrested during this time. This increased period of policing will continue until Oct. 24.
As of Wednesday, 133 people have died in impaired driving accidents this year, accounting for about a third of the total traffic fatalities, the release said. CDOT is promoting its smartphone app, “R-U-Buzzed,” as a way to help prevent impaired driving. The app, which is available for iPhone and Android phones, helps users calculate their blood-alcohol level depending on weight, gender and number of drinks consumed. It also provides access to taxi services.
