Long-term bed degradation in Maryland streams (phase 2) : Blue Ridge and western Piedmont provinces [research summary].

Kosicki, Andrzej J.; Maryland. State Highway Administration. Office of Structures

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Long-term bed degradation in Maryland streams (phase 2) : Blue Ridge and western Piedmont provinces [research summary].

2012-03-01
By Kosicki, Andrzej J.

[PDF-128.13 KB]

English

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Details:

Creators:

Kosicki, Andrzej J.
Corporate Creators:

Maryland. State Highway Administration. Office of Structures
Subject/TRT Terms:

[+]

Bed Load--Measurement Bridges Bridge Scour Channel Incision Channels (Waterways) Channel Stabilization Culvert Culverts Degradation (Hydrology) Entrenchment Erosion--Maryland Long Term Bed Degradation Maryland Streams River Channels--Maryland River Channels--Piedmont (U.S. : Region) River Sediments--Analysis Scour Stream Measurements--Maryland Streams
Publication/ Report Number:

SP109B4K
Resource Type:

Tech Report
Geographical Coverage:

Maryland
Edition:

Research summary.
Corporate Publisher:

Maryland. State Highway Administration
Abstract:

Problem:

Estimation of potential long-term down-cutting of the stream bed is necessary for evaluation and design of bridges for scour and culverts for fish passage. Existing guidelines for assessing this potential long-term bed degradation (LTBD) in Maryland streams require expertise that may not be available and/or field studies that, depending on the project budgets, may be cost prohibitive, especially for replacement of county structures. The morphological techniques recommended by these guidelines also lack verification data and may lead to overly conservative estimates, unnecessarily large foundation depths, and consequently, significantly higher costs.

Objective:

The purpose of this study was to improve predictions of LTBD in non-urbanized Maryland streams through the measurement and analysis of stream bed and waterway structure survey data and plans. A primary objective was the development of equations for estimating potential LTBD in streams in Frederick, Carroll, and Montgomery counties.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:a8e85acb7afc77e548c7edd23319f2bb2f1d4c5c2f4afda36c0358e8b719d4b2
Download URL:

https://rosap.ntl.bts.gov/view/dot/24197/dot_24197_DS1.pdf
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Long-term bed degradation in Maryland streams (phase 2) : Blue Ridge and western Piedmont provinces [research summary].

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