Photo Archives
 
Filters: Collection: "uum_map" Spatial Coverage: "Utah"
2826 - 2850 of 2,865
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TitleCollection Number And NamePhoto Number
2826 Looking downstream from the crest of the same earthfill dam (p1274n026). Note urban area at mouth of canyon.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n027
2827 The old drainage below the dam through the city is now the site of numerous houses. Severe destruction would result from the dam failure.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n028
2828 Looking across a dam towards a massive ancient landslide. Recent highway construction has rejuvenated landsliding just below the spillway; note receding hillside under arrow.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n029
2829 View along the highway traffic lanes and the dam abutment at the newly created cut slope.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n030
2830 Same view showing notch in cut slope, the result of a failure onto the road soon after opening to traffic (p1274n030). Landsliding is predictable.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n031
2831 Front end view of the slide (p1274n030).P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n032
2832 Reservoir slopes failing just upstream from dam. A failure overtopping the road would cause turbidity in the drinking water for a large city since the intake is directly downstream and in line with the current.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n033
2833 Blasting for an interstate highway in the immediate vicinity of a dam. Concrete railing of dam appears in lower right corner. Vibrations, whether natural (earthquake) or manmade, may damage structures on sensitive foundations.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n034
2834 Excavation for a covered distribution reservoir is pointed out in the photo. Note that drainages have been truncated. Reservoir is in an urban area with considerable development downslope. Geologic materials comprising the site are unstable. Geologic faults are mapped bounding the site, and springs issue from excavation walls and floor.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n035
2835 Failure of ground bordering on a covered distribution reservoir. Hammer provides scale on displacement scarp.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n036
2836 Landslide of bedrock onto highway; a frequent problem for highway maintenance, sometimes necessitating blasting of large bedrock blocks.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n039
2837 Crack down the highway centerline, showing displacement. U.S. 6 near Colton.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n040
2838 Incipient landslide failure on subdivision road. Note characteristic arcuate configuration of ground surface, also patching along crack.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n046
2839 Dropping of street which crossed old landslide failure plane. Note break in slope towards distance in line with fresh scarplet across street. Utility pole is seated along the slide plane.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n047
2840 Landslide scarplet "getting closer to home" in mountain subdivision.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n049
2841 Failure of front yard before completion of home construction in mountain subdivision.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n050
2842 Characteristic arcuate crack pattern in basement of house. Both vertical and lateral displacement is apparent.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n051
2843 In the same house; the ceiling is clearly distressed.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n052
2844 Ogden Standard Examiner newspaper photograph of mudslide encroaching into dining room.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n054
2845 Weber Basin Job Corpsmen digging out mudslide debris from hillside house.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n055
2846 Party of people viewing large landslide mass. Slide plane (surface along which mass of earth moved) is evident in photo half way down the exposed wall, sloping towards the party.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n058
2847 Closeup of slide plane. Note deposition of white calcium carbonate by groundwater along slide plane. Arrow points to smooth, slickensided (grooved) surface on underside of sliding mass.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n059
2848 Hillside subdivision in landslide terrain. Terrain in background has slid in the past. Instrument for measuring ground displacement is housed in box in foreground. White rain gage sits atop instrument housing.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n063
2849 Undisturbed hillside failing because of lateral and vertical erosion by creek. Debris is continuously removed from toe of sliding hillside by the creek.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n064
2850 Well points (small diameter water wells) used to dewater a hillside in loose sand to stabilize it after cut was made for roadway.P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collectionp1274n066
2826 - 2850 of 2,865