00730223

Component

https://doi.org/10.1177/0361198196152300122

https://scholar.google.co...ewis&publication_year=1996

A study was conducted to simplify and broaden the procedures for estimating scour dimensions at culvert outlets. In addition, a means was sought to incorporate the influence of culvert shape, culvert slope, and culvert drop height into the scour prediction procedure. On the basis of a review of the literature and further analysis of existing outlet scour data, a general expression was developed relating the dimensions of scour to the culvert discharge, the hydraulic radius, time, and bed material gradation. Culvert-slope and drop-height coefficients were formulated and integrated into the outlet-scour prediction procedure. The results indicate that the 1983 HEC-14 scour calculation procedure can be more comprehensive and simplified for cohesionless materials.

This paper appears in Transportation Research Record No. 1523, Geometric and Other General Design Issues.

English

p. 178-185

1996

Transportation Research Record

0309062217

Figures (8) ; References (17) ; Tables (5)

Culvert outlets; Culverts; Equations; Estimating; Flow; Forecasting; Geometric configurations and shapes; Hydraulic properties; Hydrologic phenomena; Scour; Slopes; Time

Bridges and other structures; Highways; Hydraulics and Hydrology; I26: Water Run-off - Freeze-thaw

TRIS, TRB

Dec 12 1997 12:00AM

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