Highway Rock Cut Inventory and Failure Potential, Allegany County, Maryland

Brezinski, David K.; Adams, Rebecca Kavage; Sylvia, Elizabeth

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Highway Rock Cut Inventory and Failure Potential, Allegany County, Maryland

2020-05-11
By Brezinski, David K. ; Adams, Rebecca Kavage ; Sylvia, Elizabeth

File Language:

English

Details

Creators:

Brezinski, David K. ; Adams, Rebecca Kavage ; Sylvia, Elizabeth
Corporate Creators:

Maryland Geological Survey
Corporate Contributors:

Maryland. State Highway Administration. Office of Policy & Research ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

MD-20-P01873G-1 ; DNR Publication No. DNR 12-041720-227
Resource Type:

Tech Report
Geographical Coverage:

Maryland ; United States
Edition:

SPR-B Final Report (May 14, 2018-May 11, 2020)
Corporate Publisher:

Maryland. State Highway Administration
Abstract:

One hundred ninety-five, MDOT SHA-maintained, roadway embankments in Allegany County, Maryland, were cataloged as to the effects of climate, vegetation, and geology factors on slope stability. Observations included dimensions, weathering condition, and geologic structure. Recorded data was employed to evaluated the potential for slope failure such as rockfall, rock roll, rockslide, or slumping. Rockfalls were determined to be likely on slopes of greater than 60 degrees, and in massive lithologies on embankments displaying major levels of differential erosion. Rock roll was the most common potential slope failure on slopes that exceed 30 degrees of inclination. Rockslides were considered to be the dominant potential slope failure in outcrops where rock layering is inclined towards the highway. Roadside slumping or rotational dislocations were a prominent type of slope failure in highly weathered, relatively unconsolidated, rock outcrops.
Format:

PDF
Funding:

SP809B4F
Download URL:

https://rosap.ntl.bts.gov/view/dot/55890/dot_55890_DS1.pdf
File Type:

[PDF - 6.96 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:2df6c881b3b7241300a099268f3112003b0250f1bd4d77cec2a8a397adf040d0

File Language:

English

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