1. A gravel bed river with large boulders carries a flood discharge of 190,000 cfs during a 100-year flood event. It has a bed slope of 0.0015, with side slopes of 1:1, and the overbank areas arecovered with short grass. Find the minimum design elevation of the crest of the levees on bothbanks (with a freeboard of 3 ft.). The elevation of the flood plain area is 820 ft.Levee250ft25ft4Elevation 820 ft250ftFigure 125ft250ftLevee2. If a bridge is to be built across this section (Figure 1) with embankments on both abutments.Find minimum width of the channel formed as a bridge opening that would meet the criteria inthe definition of floodway (if a foot rise over is allowed).

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1. A gravel bed river with large boulders carries a flood discharge of 190,000 cfs during a 100- year flood event. It has a bed slope of 0.0015, with side slopes of 1:1, and the overbank areas are covered with short grass. Find the minimum design elevation of the crest of the levees on both banks (with a freeboard of 3 ft.). The elevation of the flood plain area is 820 ft.

1. A gravel bed river with large boulders carries a flood discharge of 190,000 cfs during a 100- year flood event. It has a bed slope of 0.0015, with side slopes of 1:1, and the overbank areas are covered with short grass. Find the minimum design elevation of the crest of the levees on both banks (with a freeboard of 3 ft.). The elevation of the flood plain area is 820 ft.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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