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Landsliding in Allegheny County, Pennsylvania / by Reginald P. Briggs, John S. Pomeroy, and William E. Davies ; prepared in cooperation with the Appalachian Regional Commission.
Connect to full text Available online
View online- Format:
- Book
- Government document
- Author/Creator:
- Briggs, Reginald P., 1929-2009, author.
- Davies, William E. (William Edward), 1917- author.
- Pomeroy, John S., 1929- author.
- Series:
- Geological Survey circular ; 728.
- Geological Survey circular ; 728
- Language:
- English
- Subjects (All):
- Landslides--Pennsylvania--Allegheny County.
- Landslides.
- Pennsylvania--Allegheny County.
- Genre:
- Online resources.
- Physical Description:
- 1 online resource (iii, 18 pages) : illustrations, maps
- Place of Publication:
- [Reston, Virginia] : United States Department of the Interior, Geological Survey, 1975.
- Summary:
- Man should proceed with caution if modifications such as loading, excavation, or changes of the water regime are contemplated for slopes in Allegheny County, especially those slopes described on the map as highly sensitive to disturbance by man. Features indicative of unstable slope conditions include: cracks in buildings, yard walls, and pools; doors and windows that jam; fences and other linear features bowed out of line; tilted trees and utility poles; cracks and steplike ground features; hummocky ground; and water seeps. Geologic factors related to the landsliding process include rock types, layering, fracturing, and attitude; nature of soil cover; permeability of rocks and soils; and steepness of slope.
- Contents:
- Introduction
- Recommendations and advice for the nontechnical reader
- Geologic factors affecting susceptibility to landsliding in Allegheny County
- Selected landslide localities
- Glossary
- References cited.
- Notes:
- Online resource; title from PDF title page (USGS viewed Jan. 18, 2019).
- "To accompany Map of susceptibility to landsliding, Allegheny County, Pennsylvania: U.S. Geological Survey miscellaneous field studies map MF-685.B."
- Includes bibliographical references (page 18).
- Electronic reproduction. [Place of publication not identified] : HathiTrust Digital Library, 2016.
- Other Format:
- Print version: Briggs, Reginald Peter, 1929-. Landsliding in Allegheny County, Pennsylvania.
- OCLC:
- 957722934
- Access Restriction:
- Use copy Restrictions unspecified
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