RockTalk: Engineering Geology and Geologic Hazards


This edition of RockTalk focuses on geologic hazards in the state and mitigation techniques that can lower the damaging effects of these geologic hazards. Digital PDF download. RT-02-04D

From the Introduction:

Storm Events and Their Results

Spring and summer 1999 saw considerable action in Colorado for floods, landslides, and debris flows. Spring flooding was extensive along the Front Range piedmont and in river valleys on the eastern plains.

  1. Overbank flooding caused considerable property damage and loss in La Junta, Otero County.
  2. Several homes were severely damaged and abandoned in Colorado Springs because of landslides.
  3. High in the Front Range a large-scale debris flow originated on the slopes of Mt. Parnassus near Bakerville, Clear Creek County. The debris came down Watrous Gulch and closed Interstate 70 for more than a day. In this general vicinity, eighty or more other debris flows occurred including one in the Arapahoe Basin Ski Area, immediately west of Georgetown, and in other nearby remote places…