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Title:

PREDICTION METHODS FOR LOCAL SCOUR AT INTERMEDIATE BRIDGE PIERS

Accession Number:

00489705

Record Type:

Component

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Order URL: http://worldcat.org/isbn/0309047625

Abstract:

The ability to establish foundation elevations for intermediate bridge piers that will provide a reasonable degree of assurance that the pier will not be undermined by the flowing stream and to rate existing intermediate bridge pier foundations relative to their risk of being undermined has become a matter of national concern. This paper will document the results of a study that presents and recommends formulae that can be used to predict the anticipated depth of local scour in both uniform-particle, cohesionless streambeds, and graded, armored streambeds. The study incorporated both a literature search and a field verification of the results of the literature search. The Laursen and Toch formula will be recommended to predict anticipated local scour depths at intermediate bridge piers in uniform-particle, cohesionless streambeds, and the University of Aukland formula will be recommended for consideration for graded, armored streambeds. This document will show that these scour prediction formulae, in conjunction with other engineering data, can be a valuable tool to aid the engineer in economically and safely establishing an intermediate bridge pier foundation elevation, or rating the safety of an existing foundation.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1201, Arid Lands: Hydrology, Scour, and Water Quality.

Monograph Accession #:

01414025

Authors:

Copp, Howard D
Johnson, Jeffrey P
McIntosh, Jack L

Pagination:

p. 46-53

Publication Date:

1988

Serial:

Transportation Research Record

Issue Number: 1201
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309047625

Features:

Figures (5) ; References (7) ; Tables (2)

Old TRIS Terms:

Subject Areas:

Highways; Hydraulics and Hydrology; Safety and Human Factors; I26: Water Run-off - Freeze-thaw

Files:

TRIS, TRB, ATRI

Last Modified:

Nov 6 2013 3:48PM

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