The report includes nine geologic-hazard maps that cover flooding and debris flows, rock fall, landslides, surface faulting, liquefaction, collapsible soil, expansive soil and rock, gypsiferous soil and rock, and soil piping, erosion, and wind-blown sand. Each map includes information on the nature and distribution of the hazard, how the maps were generated, and methods that may reduce the hazard. The maps provide critical information to public administrative, planning, and safety officials, as well as consultants, landowners, perspective landowners, and others on the kinds and locations of geologic hazards that may affect existing and future development in the area. The study includes customizable PDF versions of the maps that allow the user to display hazard areas on their choice of a topographic, shaded relief, or aerial-photo background, ensuring a particular parcel is easy to find.
The maps were produced with support from the Utah Permanent Community Impact Fund Board, and the municipalities of Springdale, Rockville, Virgin, and La Verkin. Geologic hazards of the State Route 9 Corridor, La Verkin City to Town of Springdale, Washington County, Utah (Special Study 148) is available on DVD (13p., 9 pl) for $24.95 which can also be available as print on demand, and it also can be viewed on the UGS website at http://geology.utah.gov/online/ss/ss-148/ss-148txt.pdf