Laserfiche WebLink
<br /> <br /> <br />FIGURE 14. - Landslide in Denver Formation on old Colorado Highway 58, one-half mile east of Golden at foot <br />of North Table Mountain. This slide has been intermittently active for many years and has been a continu- <br />ing problem for highway and railroad maintenance people. Present activity was aggravated by the May 5-6 <br />rains. <br /> <br />58, continuing damage to West 44th Avenue, <br />continuing damage to the Colorado and South- <br />ern Railroad tracks, potential disruption of the <br />Farmers Highline Canal, and a serious threat <br />to the Coors Co. sewage-disposal plant, The <br />Colorado Highway Department, therefore, has <br />taken steps to rectify the conditions that led to <br />slide movements in the past. <br />Many small slumps, earthflows, and mud- <br />flows appeared in backfilled areas along Inter- <br />state 70 in the mountains (fig. 15). Most of <br />these were superficial failures involving only <br />topsoil or dressing on sloping rock cuts. Mud- <br />flows appeared mostly on steep slopes where <br />grass seeded the previous summer and fall had <br />not yet established a protective turf. Even a <br />good cover of turf, however, will not prevent <br />slumping - in contrast with mudflowage - if <br />the subsoil is saturated. The effects of the above <br /> <br /> <br />FIGURE 15. - Small debris slide on eastbound exit ramp <br />of Interstate 70 at Genessee Mountain. Material is <br />loam slope dressing and colluvium. <br /> <br />15 <br />