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<br />'-' <br /> <br />Canyon are about twice the average throughout the rest of Colorado. CDOH <br />summaries of traffic accident experience for 1986 and 1987 (CDOH, 1988a) show <br />157 accidents in Clear Creek Canyon and 81 more along u.s. Highway 6 between S.H. <br />58 and the Sixth Avenue/I-lO interchange, for a total of 238 accidents. To <br />reduce the high accident rate, it is estimated that approximately $11.1 million <br />would be required to widen shoulders and replace bridges in Clear Creek Canyon <br />to meet current CDOH design standards. <br /> <br />Traffic volumes on 1-70 range from 38,600 vehicles per day at the Sixth <br />Avenue interchange to 20,400 vehicles per day at the bottom of Floyd Hill (U.S. <br />Highway 6 interchange). During periods of peak usage, 1-70 is operating at <br />capacity from Sixth Avenue to S.H. 74 (Evergreen Exit) and traffic volumes taper <br />off to the west. Projections over the next 20 years show that during periods <br />of peak usage, the capacity of 1-70 will be exceeded in the entire length from <br />the base of Floyd Hill (U.S. Highway 6 interchange) to Sixth Avenue. The 1986 <br />accident rates for various segments of 1-70 (CDOH, 1986) range from about 0.33 <br />to 1.5 times the Colorado average for rural interstate highways. There were 355 <br />accidents on 1-70 between U.S. Highway 6 (base of Floyd Hill) and Sixth Avenue <br />during 1986 and 1987. <br /> <br />Existing accident data for Golden Gate Canyon Road are limited because the <br />road is not a part of the state highway system. Traffic volumes are quite low. <br />They range from about 400 vehicles per day at the west end to 1700 vehicles per <br />day on the east end, according to the Jefferson County Department of Highways <br />and Transportation. Accident data are available only for the westerly 6.6 miles <br />(S.H. 46) where the accident rate is double the Colorado average for non-federal <br />aid state highways. In 1986 and 1987, the 6.6 mile segment had 16 accidents with <br />3 fatalities. <br /> <br />In addition to the tourist traffic in Clear Creek Canyon, much of the use <br />of U.S. Highway 6 can be attributed to commuters. U.S. Highway 6 provides a <br />direct link between Clear Creek and Gilpin Counties and major employment centers <br />in Golden (such as the Adolph Coors Company) and metropolitan Denver. <br /> <br />i-.; <br /> <br />'- <br /> <br />3-2 <br />