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Colorado Department of Transportation
Supervises road construction, maintenance, and weather-related closures, and promotes recreation, tourism, and transportation safety.
E-470 Public Highway Authority
Maintains the tolled eastern beltway of Denver which uses the EXpressToll electronic toll collection system. Official site includes toll rates, maps, and an FAQ.
The Highways of Colorado
Includes history and essays.
Last update:June 14, 2015 at 19:13:16 UTC