The following table is the recorded maximum depths (inches) of precipitation for a 30-minute duration. Determine the return period (years) for a depth of 3.0 inches using the Weibull method with an annual series. Year Date Depth, in Year Date Depth, in. 1973 May 3 2.5 1978 Aug 8 4.7 1979 May 66.0 June 3 1.0 1967 June 7 1.0 June 8 5.0 1975 July 2 1.0 Sept 4 3.0 1980 May 4 1.0 1981 Sept 8 5.0 1976 June 1 1.5 Aug 3 3.0 1977 July 4 1.5 1982 May 9 2.0

The following table is the recorded maximum depths (inches) of precipitation for a 30-minute duration. Determine the return period (years) for a depth of 3.0 inches using the Weibull method with an annual series. Year Date Depth, in Year Date Depth, in. 1973 May 3 2.5 1978 Aug 8 4.7 1979 May 66.0 June 3 1.0 1967 June 7 1.0 June 8 5.0 1975 July 2 1.0 Sept 4 3.0 1980 May 4 1.0 1981 Sept 8 5.0 1976 June 1 1.5 Aug 3 3.0 1977 July 4 1.5 1982 May 9 2.0

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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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.

Question

The following table is the recorded maximum depths (inches) of
precipitation for a 30-minute duration. Determine the return
period (years) for a depth of 3.0 inches using the Weibull
method with an annual series.
Year Date Depth, in Year Date Depth, in.
1978 Aug 8 4.7
1979 May 6 6.0
1973 May 3 2.5
June 3 1.0
1967 June 7 1.0
June 8 5.0
1975 July 2 1.0
1976 June 1 1.5
Sept 4 3.0
1980 May 4 1.0
Aug 3 3.0
1977 July 4 1.5
1981 Sept 8 5.0
1982 May 9 2.0

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