An agricultural catchment area of a town in Egaro is 65 ha. Average slope is calculated as 0.6%. Water travels with a maximum length of 700 m. The depth-duration relationship for a 10-year return period on the site is given below: Duration (m) 5 10 20 30 40 60 Depth of rainfall (mm) 17 26 40 50 57 62 1. Estimate the peak flow rate assuming that the runoff coefficient is 0.4. 2. If the land use and the corresponding percentage of the area and runoff coefficients are as given below, calculate the equivalent runoff coefficient. % of Land use Runoff coefficient Area Roads 9 0.7 Lawn 20 0.1 Residential 59 0.3 area Industrial area 12 0.8 NB Report your answers in three significant digits.
An agricultural catchment area of a town in Egaro is 65 ha. Average slope is calculated as 0.6%. Water travels with a maximum length of 700 m. The depth-duration relationship for a 10-year return period on the site is given below: Duration (m) 5 10 20 30 40 60 Depth of rainfall (mm) 17 26 40 50 57 62 1. Estimate the peak flow rate assuming that the runoff coefficient is 0.4. 2. If the land use and the corresponding percentage of the area and runoff coefficients are as given below, calculate the equivalent runoff coefficient. % of Land use Runoff coefficient Area Roads 9 0.7 Lawn 20 0.1 Residential 59 0.3 area Industrial area 12 0.8 NB Report your answers in three significant digits.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
#10
Transcribed Image Text:An agricultural catchment area of a town in Egaro is 65 ha. Average slope is calculated as 0.6%. Water travels with a
maximum length of 700 m. The depth-duration relationship for a 10-year return period on the site is given below:
Duration (m)
10
20
30
40
60
Depth of rainfall (mm)
17
26
40
50
57
62
1. Estimate the peak flow rate assuming that the runoff coefficient is 0.4.
2. If the land use and the corresponding percentage of the area and runoff coefficients are as given below, calculate
the equivalent runoff coefficient.
% of
Runoff coefficient
Area
Land use
Roads
9.
0.7
Lawn
20 0.1
Residential
59 0.3
area
Industrial area 12
0.8
NB Report your answers in three significant digits.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 3 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning