Probability plot A bridge will be built over the Meherrin River near the site that the discharge measurements were taken for the log-normal probability plot below. The service life of the bridge is 40 years. If a design discharge of 23,000 cfs is used for the bridge: (a) what is the probability that the bridge will be flooded in any one year? (b) What is the probability that the bridge will be flooded at least once over its service life? (Note: just focus on the “theoretical line” in the plot)

Q: The current population of a community is 40,000 capita, and the expected future population after 25…

A:

Q: 18. Fit the data in the table below into the Greenshields' model and determine; (i) The maximum flow…

A: I) The maximum flow, qmax=1852.416 veh/hr ii) Speed at which flow is maximum, u = 31.3 km/hr iii)…

Q: HURREVAC is the model run by NHC to estimate storm surge potential. True False

A: HURREVAC is a hurricane decision support tool developed by the National Hurricane Program to help…

Q: A discharge equal to or greater than 20,000 m3/s has a 75 percent chance of occurring during a…

A: Given data: A discharge equal to or greater than 20,000 m3/s has a 75 percent chance of occurring…

Q: 3. A recreational park is built near Buffalo Creek. The stream channel can carry 200 m³/s, which is…

A: Recreational park- peak flow =5 year flow of stream channel =200 m3/s

Q: A municipal water supply diversion pipe carries flow from Lake Agnes to the watershed divide at…

A: Using the formula, Q = 0.432×C×(D^2.63)×(S^0.54) Where, C = Hazen Williams' constant (For High…

Q: Determine the corresponding return periods of an annual exceedance series for corresponding annual…

A: The annual maximum return period is given as 2,5,20,25 and 100 years.

Q: A temporary dam is to be built to protect a 5-year construction activity for a hydroelectric power…

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Q: A culvert is designed for a flood frequency of 100 years and a useful life of 20 years. The risk…

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Q: 6-13. A 50-year annual series of peak river discharges with a mean of 2000 m/s and standard…

A: Given: Mean Discharge x¯= 2000 m3/ sec Standard Deviation (σn-1)= 500 m3/sec Recurrence Period T =…

Q: 11. For a return period (or recurrence interval) of 100 years, the probability of a discharge of…

A:

Q: 8.67 A 1/25 scale model of a spillway is tested. The discharge in the model is 0.1 m³/s. To what…

A:

Q: DA River in the Thunder Bay area experienced peak floods of 2600 ft/s and 3000 ft³/s respectively…

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Concepts of Flood Control

Flooding is a temporary overflow of water that submerges or covers the the usually dry land. It can also be defined as the overflow of the excess amount of water that covers a huge area of land which is normally dry.