Motorists on some stretches of northwest Colorado highways will be slapped with doubled fines when caught speeding under a resumed effort to cut down on collisions with wildlife. The Colorado Department of Transportation announced Wednesday that it is reinstating increased fines in wildlife zones. Fines will be doubled for nighttime speeding during the migration season from October through May. CDOT suspended wildlife zones for a year while officials considered their efficacy. The doubled fines will apply on stretches of Colorado Highway 13, between Rifle and Meeker and between Meeker and Craig. They also will apply on a stretch of U.S. Highway 40 between Hayden and Craig.