FLOOD05740

• County: Denver
• Community: All
• Stream Name: All
• Basin: South Platte
• Title: Landslide Loss Reduction
• Date: 1/1/1989
• Prepared For: State of Colorado
• Prepared By: CGS
• Floodplain - Doc Type: Educational/Technical/Reference Information

Figures

1a. Map showing relative potential of
different parts of the conterminous
United States to landsliding ....................1
lb. Potential landslide hazard in

Maine .........................................................2
2. Major damage from debris flow,
Farmington, Utah ... ..... ............. ........ .........5
3. "Bucket brigade," Farmington, Utah .......5
4. Landslide losses in Japan 1938-1981......6
5. The relationship of people, landslides,
and disasters .............................................7
6. Aerial view of the Savage Island
landslide, Washington state ...................10
7. Ruins of home destroyed in Kanawha
City, West Virginia ..................................10

8a. Rockfall....................................................11
8b. Rockfall on U.S. Highway 6,

Colorado ... ............... ... .......... ... .......... .... ...11
9a. Topple.......... ............... ........ ................. .....12
9b. Topple, western Colorado.:......................12
lOa. Rotational slide .......................................12
lOb. Rotational slide, Golden, Colorado.........13
11. Translational slide ..................................13
12. Block slide ...............................................13
13a. Lateral spread.........................................14
13b. Lateral spread, Cortez, Colorado ...........14
14a. Creep........................................................14
14b. Creep, Mt. Vernon Canyon, Colorado ....14

15. Debris fan formed by debris flows..........15
16a. Earthflow.................................................15
16b. Roan Creek Earthflow, DeBeque,

Colorado. ..... ....... ... .......... ... .... ....... ...........15
17. Damage from Slide Mountain
landslide, Nevada....................................16
18. Jackson Springs landslide,
Franklin D.Roosevelt Lake,
Washington state ....................................17
19. . Aerial view of the Thistle landslide,

Utah ........ .............. ............... ....................18
20. Landslide inventory map, Durango,

Colorado ...... ......... ....... .... ...... ....... ........... .23
21. Landslide inventory map, La Honda,

California................................................. 24
22. Landslide susceptibility map, King
County, Washington ................................24
23. Earthquake landslide hazard map,
San Mateo County, California ................25
24. Hazardous area warning sign ................31
25. Warning system schematic.....................32
26. Rudd Creek debris basin, Farmington,

Utah.. .... ........ .... ... ........... ..................... ... .32
27. Retaining wall, Interstate 70,
Colorado ................................................33
28. Executive Order establishing
Colorado Natural Hazards Mitigation

Council..... ...... ... ....... .... .......... ............. .....42

Tables

1. Estimates of minimum landslide
'damage in the United States,

1973-1983 ... ............ ......... ..... ..... ............ ... ...2
2. Techniques for reducing landslide

hazards .. .... ..... ... ... ...... ............ .......... ........8
3. Examples of resources available for
obtaining/transferring landslide

information ........... ..., ...... ...... .... .................26.
4. Potential users of landslide hazard

information.. ... ... ...... ...... .................. .... .... ...27
5. Examples of producers and providers
oflandslide hazard information ...............29
6. Physical mitigation methods .....................33
7. Capability assessment checklist ...............38

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