Demonstrate that the contraction scour can be classified as being “live-bed” at a bridge that crosses a stream bed of fine gravel (D50 = 0.0196-ft) when the stream is flowing at 6.8 ft/sec at a depth of 8.5 ft upstream of the contraction

Demonstrate that the contraction scour can be classified as being “live-bed” at a bridge that crosses a stream bed of fine gravel (D50 = 0.0196-ft) when the stream is flowing at 6.8 ft/sec at a depth of 8.5 ft upstream of the contraction

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter7: Seepage

Section: Chapter Questions

Problem 7.7CTP

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Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.

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Demonstrate that the contraction scour can be classified as being “live-bed” at a bridge that crosses a stream bed of fine gravel (D₅₀ = 0.0196-ft) when the stream is flowing at 6.8 ft/sec at a depth of 8.5 ft upstream of the contraction?

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