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6 LANDSLIDES IN PENNSYLVANIA Figure 4. A dense accumulation of angular sandstone boulders forming a steep slope. As long as the slope is not disturbed, the ac-cumulation commonly remains in a relatively stable configu-ration because there are no small rock fragments and soil be-tween the boulders, and water drains freely from the hillside. Figure 3. Rock creep. The nearly vertical texture of ...
Continue Reading...Pennsylvania) that are at moderate to high risk. Landslides and debris flows occur in all U.S. states. In a landslide, masses of rock, earth or debris move down a slope. They can be activated by storms, earthquakes, volcanic eruptions, fires and human modification of land. Landslides and debris flows can move rapidly, striking with little or no ...
Continue Reading...County, Pennsylvania, in 2 sheets at a scale of 1:50,000. The Pittsburgh Geological Society is a non-profit scientific society whose goals are to stimulate geologic thought, advance anddis- seminate geologic knowledge, and provide a forum for geologic problems. Figure 3. The most common kinds of landslides in western Pennsylvania. SCARP
Continue Reading...County, Pennsylvania By Reginald P. Briggs 1 John S. Pomeroy and William E. D~avies GEOLOGICAL SURVEY CIRCULAR 728 Prepared in cooperation with the Appalachian Regional Commission To accompany Map of Susceptibility to Landsliding, Allegheny County, Pennsylvania: U.S. Geological Survey Miscellaneous Field Studies Map MF-6858. 1975
Continue Reading...Landslides occur in Pennsylvania and arc widespread in the spring when the ground thaws, saturating soil and rock. At that time rocks fall from road cu ts and soil slumps on hillsides. Debris slides of rock, soil and vegetation are also common, especially during periods of heavy rainfall. All three types of landslides rnay involve homes, in dustry, roads and farmlands. Each rockfall, slump and ...
Continue Reading...Pennsylvania Dept. of Community and Economic Development DCED does not track any information on landslides or their damages. They do work with municipalities on a variety of issues including zoning and building codes. Pennsylvania will have a Statewide Construction Code, but not until next year (2003).
Continue Reading...2005); landslides; and land subsidence and sinkholes. For the purpose of this HMP, the ground failure hazard to which the Lehigh Valley is vulnerable includes, but is not limited to, landslides, which are further defined as follows: A landslide is described in the Commonwealth of Pennsylvania 2010 Standard All-Hazard Mitigation Plan (PA HMP) as the downward and outward movement of slope ...
Continue Reading...Keywords: landslides, shear strength, slope stability, inclinometer, pore pressure. INTRODUCTION The New Baltimore Landslide is located at milepost 128 along the east-bound lane of the Pennsylvania Turnpike (I-76) in Somerset County, Pennsylvania (Figure 1). It is an old (pre-1883) landslide that is approximately 1000 ft (305 m) wide and extends 2000 ft (610 m) upslope. Overall, the landslide ...
Continue Reading...Pennsylvania has a wide variety of landslide occurrences every year and Western Pennsylvania, in particular District 12 is a region that is prone to landslides. The Greater Pittsburgh Urban area has the best documented and most publicized issues, but all areas of the commonwealth are prone to slides for an assortment of reasons.
Continue Reading...Landslides and related features, OHIO, WEST VIRGINIA and PENNSYLVANIA. The following 7-1/2 minute quadrangles are part of the Canton 1°x2°map . sheet: Onen file nuJIber uadrangle . 78-1057 (C-1)Randle, Ohio 78-1057 (C-2)Coshocton, Ohio . 76-1057 (C-3) Fresno, Ohio . 78-1057 (C-4)Newcomerston, Ohio . 78-1057 (C--5) Gnadenhutten, Ohio . 78-1057 (C-6)Tippecanoe, Ohio 78-1057 (C-7)Deersville ...
Continue Reading...WASHINGTON COUNTY, PENNSYLVANIA James R. James, Gannett Fleming, Inc., Pittsburgh, PA 5th Annual Technical Forum Geohazards in Transportation in the Appalachian Region Charleston, West Virginia August 4, 2005. STATE ROUTE 837 LANDSLIDE STABILIZATION Washington County, PA Presentation Outline • Project Background • Slope Movement Diagnosis • Site Reconnaissance • Literature Review ...
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