Abstract
Storms of high-intensity rainfall, including hurricanes, occur about once every 3 years in small areas of the mountains of the eastern United States posing a high debris-flow hazard. Reported casualties and monetary losses are often an insufficient and inadequate means for comparing the impact from debris flows. A simple GIS technique was used to characterize the distribution and density of debris flows for making a preliminary assessment of risk of impact on roads. This technique was used for comparison of three major severe storms resulting in numerous debris flows: August 10–17, 1940, near Deep Gap, North Carolina; August 19–20, 1969, in Nelson County, Virginia; and June 27, 1995, in Madison County, Virginia. Based on the criteria of the number of debris flows and area covered by debris flows, the August 19–20, 1969, Nelson County, Virginia, event was the most severe of the three storms and posed the greatest risk of debris-flow impact on roads.
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References
Auer KM (1989) Geotechnical investigation of debris avalanche activity associated with Hurricane Camille in Central Virginia. Kent State MS Thesis
Camp JD, Miller EM (1970) Flood of August 1969 in Virginia. US Geol Surv Open-File Rep
Campbell RH (1973) Isopleth map of landslide deposits, Point Dume quadrangle, Los Angeles County, California; an experiment in generalizing and quantifying areal distribution of landslides. US Geological Survey Miscellaneous Field Studies Map MF-535, scale 1:62,500
Carrara A, Crosta G, Frattini P (2003) Geomorphological and historical data in assessing landslide hazard. Earth Surface Processes Landforms 28:1125–1142
Clark GM (1987) Debris slide and debris flow historical events in the Appalachians south of the glacial border. In: Costa JE, Wieczorek GF (eds) Debris flows, avalanches: process, recognition, and mitigation, Geol Soc Am Rev Eng Geol 7:125–138
Coe JA, Godt JW (2001) Debris flows triggered by the El Niňo rainstorm of February 2–3, 1998, Walpert Ridge and vicinity, Alameda County, California. US Geol Misc Field Studies Map MF-2384
Crosta GB, Frattini P (2000) Rainfall thresholds for triggering soil slips and debris flow. In: Mugnai A, Guzzetti F, Roth G (eds) Mediterranean Storms, 2nd Plinius Conference, Siena, 2000, pp 463–487
DeAngelis RM, Nelson ER (1969) Hurricane Camille, August 5–22. US Department of Commerce, ESSA’s Climatological Data, National Summary, 20(8):451–474
Eaton SL, Morgan BA, Kochel RC, Howard AD (2003) Quaternary deposits and landscape evolution of the central Blue Ridge of Virginia. Geomorphology 56(1–2):139–154
Ellen SD, Wieczorek GF, Brown WMIII, Herd DG (1988) Introduction: In: Ellen SD, Wieczorek GF (eds) Landslides, floods, and marine effects of the storm of January 3–5, 1982, in the San Francisco Bay region, California. US Geol Surv Prof Pap 1434:1–5
Gao J (1992) Modeling landslide susceptibility from a DTM in Nelson County, Virginia: a remote sensing-GIS approach. PhD Thesis, University of Georgia, Athens, Georgia
Govi M, Sorzana PF (1980) Landslide susceptibility as a function of critical rainfall amount in Piedmont Basin (North-Western Italy). Studia Geomorphologica Carpatho-Balcanica 14:43–61
Gryta JJ, Bartholomew MJ (1987) Frequency and susceptibility of debris avalanching induced by Hurricane Camille in central Virginia. In: Schultz AP, Southworth CS (eds) Landslides of eastern North America. US Geol Surv Circ 1008:16–18
Gryta JJ, Bartholomew MJ (1989) Factors influencing the distribution of debris avalanches associated with the 1969 Hurricane Camille in Nelson County, Virginia. In: Schultz AP, Jibson RW (eds) Landslide processes of the eastern United States and Puerto Rico. Geol Soc Am Spec Pap 236:15–28
Hack JT, Goodlett JC (1960) Geomorphology and forest ecology of a mountain region in the central Appalachians. US Geol Surv Prof Pap 347
Jacobson RB (ed) (1993) Geomorphic studies of the storm and flood of November 3–5, 1985, in the upper Potomac and Cheat River Basins in West Virginia and Virginia. US Geol Surv Bull 1981
Kochel CR (1987) Holocene debris flows in central Virginia. In: Costa JE, Wieczorek GF (eds) Debris flows, avalanches: process, recognition, and mitigation. Geol Soc Am Rev Eng Geol 7:139–155
Larsen MC, Parks JE (1997) How wide is a road? The association of roads and mass-wasting disturbance in a forested montane environment. Earth Surface Processes Landforms 22:835–848
Morgan BA, Iovine G, Chirico P, Wieczorek GF (1999b) Inventory of debris flows and floods in the Lovingston and Horseshoe Mountain, VA, 7.5’ quadrangles, from the August 19/20 1969 storm in Nelson County, Virginia. US Geol Surv Open-File Rep 99–518:1:24,000
Morgan BA, Wieczorek GF, Campbell RH (1999a) Map of rainfall, debris flows, and flood effects of the June 27, 1995, storm in Madison County, Virginia. US Geol Surv Misc Invest Series Map I-2623A, 1:24,000
Morgan BA, Wieczorek GF, Campbell RH, Gori PH (1997) Debris-flow hazards in areas affected by the June 27, 1995, storm in Madison County, Virginia. US Geol Surv Open-File Rep 97–438
Simpson PS, Simpson JH Jr (1970) Torn land. J.P. Bell Co., Lynchburg, Virginia
Smith JA, Baeck ML, Steiner M, Miller AJ (1996) Catastrophic rainfall from an upslope thunderstorm in the central Appalachians: The Rapidan storm of June 27, 1995. Water Resour Res 32(10) 3099–3113
Terranova TF (1987) Multivariate analysis of geological, hydrological, and soil mechanical controls on slope stability in central Virginia. MS Thesis, Southern Illinois University, Carbondale
US Geological Survey (1949) Floods of August 1940 in the South Eastern States. US Geol Surv Water Supp Pap 1066
Virginia Division of Mineral Resources (1969) Natural features caused by a catastrophic storm in Nelson and Amherst Counties, Virginia. Virginia Miner Spec Iss
Webb HW, Nunan WE, Penley HM (1970) Road log-storm damaged areas in central Virginia. Virginia Miner 16(1):1–10
Wieczorek GF, Morgan BA, Campbell RH (2000) Debris-flow hazards in the Blue Ridge of central Virginia. Environ Eng Geosci VI(1):3–23
Williams GP, Guy HP (1973) Erosional and depositional aspects of Hurricane Camille in Virginia, 1969. US Geol Surv Prof Pap 804
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Wieczorek, G.F., Mossa, G.S. & Morgan, B.A. Regional debris-flow distribution and preliminary risk assessment from severe storm events in the Appalachian Blue Ridge Province, USA. Landslides 1, 53–59 (2004). https://doi.org/10.1007/s10346-003-0003-z
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DOI: https://doi.org/10.1007/s10346-003-0003-z