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A=30% A=45% Forestland Farmland Sandy loam Clay A = 25% Pasture 800 Elevation (m) 600 8 700 500 400 O 1000 2000 3000 4000 5000 6000 Distance (m) I Silty Figure 2 Figure 3

A=30% A=45% Forestland Farmland Sandy loam Clay A = 25% Pasture 800 Elevation (m) 600 8 700 500 400 O 1000 2000 3000 4000 5000 6000 Distance (m) I Silty Figure 2 Figure 3

Structural Analysis
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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Question

Given: Wonderboom catchment (A = 150 km2) in Pretoria North shown in Fig. 2. The slope of

the watershed is given in Fig. 3. The area is assumed to be in region 4.6.

 

3.1. Calculate the slope of the longest 

 

 

 


watercourse using: 

(a) Equal Area Method

(b) 1085 method

3.2. Calculate the intensity and flood peaks corresponding to a return periods of 30 and 75

years using the following methods: [Hint: Use slope = 2.8%]

(a) Rational Formula

(b) Standard Design Flood

(c) Francou-Rodier method

 

 

A=30% A=45% Forestland Farmland Sandy loam Clay A = 25% Pasture 800 Elevation (m) 600 8 700 500 400 O 1000 2000 3000 4000 5000 6000 Distance (m) I Silty Figure 2 Figure 3
Transcribed Image Text:A=30% A=45% Forestland Farmland Sandy loam Clay A = 25% Pasture 800 Elevation (m) 600 8 700 500 400 O 1000 2000 3000 4000 5000 6000 Distance (m) I Silty Figure 2 Figure 3
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