3- Estimate the Curve Number for all three AMC conditions for a basin with the following data: Soil group A Soil group B Soil group C Soil group D Total area (%) (%) (%) (%) (%) Land use Farm Seeded Pasture land (fair) 8 2 2 20 1 14 10 11 2 22 1 7 60 15 25

3- Estimate the Curve Number for all three AMC conditions for a basin with the following data: Soil group A Soil group B Soil group C Soil group D Total area (%) (%) (%) (%) (%) Land use Farm Seeded Pasture land (fair) 8 2 2 20 1 14 10 11 2 22 1 7 60 15 25

Fundamentals Of Construction Estimating

4th Edition

ISBN:9781337399395

Author:Pratt, David J.

Publisher:Pratt, David J.

Chapter4: Measuring Site Work, Excavation, And Piling

Section: Chapter Questions

Problem 3RQ: What is the purpose of a soils report, and how can the information it contains assist the estimator?

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Concept explainers

Soil engineering for highway design

Soil engineering is a part of geotechnical engineering that deals with the characteristics of soil. It also helps to understand the behavior of the soil in different conditions. The basic concepts of soil are studied to check the strength, compressibility, and porosity of the soil. This makes soil engineering an important topic for civil engineering.

Question

3- Estimate the Curve Number for all three AMC conditions for a basin with the following data:
Soil group A Soil group B Soil group C Soil group D
(%)
(%)
(%)
(%)
Land use
Farm
Seeded
Pasture land (fair)
8
2
2
20
1
14
10
11
2
22
1
7
Total area (%)
60
15
25

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Step 2: Determination of Curve numbers for each soil group

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Step 3: Calculate weighted average CN for AMC II

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Step 4: Calculate weighted average CN for AMC I and III

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