t (hr) 1.5 0.015 0.0 0.5 Determine the first three 30 min increments rainfall intensity for a 10-yr, 24-hr storm byetograph for Miami, Florida based on the P/PT 0.0 0.005 0.01 following data 15 Pr=9 in and At= 0.5 hr (B) 0.09,0.09, 0.09 (D) 0.09, 0.108, 0.126 (A) 0.09,0.108, 0.09 (C) 0.09, 0.09, 0.0108 (E) 0.108, 0.108, 0.126 If 120 acres watershed has an average slope 8% and the hydraulic length is 1100 feet. 16 Determine the time of concentration (min). Assuming the CN is 90 (A) 96 Use the Rational Method to find the peak discharge of 25 years frequency assuming the 17 runoff coefficient is 0.35 (A) 49 (B) 85 C) 103 D110 |E 68 (B) 63.7 (C) 92.4 D77 E) 83.3

t (hr) 1.5 0.015 0.0 0.5 Determine the first three 30 min increments rainfall intensity for a 10-yr, 24-hr storm byetograph for Miami, Florida based on the P/PT 0.0 0.005 0.01 following data 15 Pr=9 in and At= 0.5 hr (B) 0.09,0.09, 0.09 (D) 0.09, 0.108, 0.126 (A) 0.09,0.108, 0.09 (C) 0.09, 0.09, 0.0108 (E) 0.108, 0.108, 0.126 If 120 acres watershed has an average slope 8% and the hydraulic length is 1100 feet. 16 Determine the time of concentration (min). Assuming the CN is 90 (A) 96 Use the Rational Method to find the peak discharge of 25 years frequency assuming the 17 runoff coefficient is 0.35 (A) 49 (B) 85 C) 103 D110 |E 68 (B) 63.7 (C) 92.4 D77 E) 83.3

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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Similar questions

Analysis of rainfall and runoff records for a certain storm over a basin (of area 3210 km²) gave the following data: Rainfall for successive 2 hr periods: 2.5, 6.5 and 4.5 cm/hr. Direct surface discharge at the concentration point for successive 2-hr periods: 400, 1200, 4500, 7700, 12000, 10220, 8260, 3900, 838 and 400 m’. Derive the unit hydrograph for the catchment area.
One of the following storms is excessive and causing runoff according to Konhke Select one a . 10 mm rainfall and 6min duration b . 12 mm rainfall and 1.1hour duration c . 22 mm rainfall and 15 min duration d . 15 mm rainfall and 1.2 hour duration
The incremental rainfall intensity data given in the table below were recorded at a gage located on a small urban watershed. Using a 0.5-hour time step: (a) Plot the rainfall Hyetograph. (b) Determine the total rainfall depth during the storm event. (c) If the runoff depth is 4.65 mm, find the phi- index in mm/ hr. Rainfall intensity data- Time (hr) 0- 0.5- 1.0- 1.5- 2.0- 2.5- 3.0- 3.5- 4.0- 4.5- 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall Intensity 2 2.5 5 1.5 1 0.5 (mm/hr)
11- The design storm of water shed has the depths of rainfall of 4.9 and 3.9 cm for the consecutive 1-hr periods. The 1-hr unit hydrograph can be approximated by a triangle of base 6hr with a peak of 50 m³/s occurring after 2 hr from the beginning. Compute the flood hydrograph assuming an average loss rate of 9 mm/hr and constant base flow of 10 m³/s. What are the areas of water shed and its coefficient of runoff?
Do all of the following parts of the question
Determine a CONSERVATIVE C-average for a 25 year storm to TWO decimal places given the following information: gravel road, 25 ha Pasture flat open sand loam, 54 ha Unimproved areas, 49 ha
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