Given the drainage area in above Figure calculate the discharge at the outfall using the rational method. Use the5-year rainfall intensity-duration curve Other data are: •for Area 1, C=0.50, Area = 1.3 acres, and inlet time = 7 mins; •for Area 2, C= 0.40 , area = 2.5 acres , and inlet time 5 mins•for Area 3, C=0.70, area 3.9 acres, and andinlet time = 5 mins.The sewer lines in Areas 2 and 3 are each 500 ft in length; and the average velocity of flow in the sewers may be assumed to be 3.0 ft/sec.

Q: Question 2 Compute the total volume of rainfall (acre-ft) for each of the storms and watersheds: (a)…

A: Given data Depth of rainfall=3 in Drainage area= 0.25mi2 Rainfall intensity= 0.6in/hr Duration =…

Q: 1. (a)The measured streamflow data for a 2hr storm over a catchment of area 1.98km2 is shown in…

A: Area = 1.98 Km2

Q: The following data was collected during a 5-hour storm event in the study watershed. The baseflow…

A: Given: Baseflow = 35 m3/s

Q: The 10-minute triangular unit hydrograph for a watershed has a peak discharge of 100 ft’/s at 40…

A: 10-minute triangular unit hydrograph peak discharge(Q)=100 ft3/s (occur at 40 minutes) Total…

Q: Estimate the lag time (hr) for the following watershed: Hydraulic length (miles ) = 1.12 %3D Curve…

A: Given:- The hydraulic length of watershed = 1.12 miles Curve number for watershed = 80  The average…

Q: Draw Thiessen polygons on the catchment shown below. If the rainfall depths recorded by Gauge A, B,…

A: Since you have posted multiple questions, we will provide the  solution   only to the first question…

Q: || 21 Using rational method, rainfall intensity-duration curves and the data given in Fig. P 2.27…

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Q: A small watershed has an area of 3 km². The slope of the catchment is 1/150 and the maximum length…

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Q: Calculate the runoff from a watershed of 0.01×R ha. The following data are available: Depth of…

A: To calculate runoff

Q: the TR-55 method, respecctively. 4. Problem 3.22 (page 118): A drainage basin has a composite curve…

A:

Q: Answer question 1

A: Given data in question  Volume 125.6 m3 Base area 500 m2 To find out  Storage depth

Q: 2. The Friends Creek watershed has five rainfall gauges at the locations shown in the figure below.…

A: given data,five rainfall gauge location and recorded rainfall is givenFindmean area rainfall by…

Q: tion 7-4 1. A hydraulic jump occurs in a 40-ft-wide rectangular channel. If the upstream and…

A:

Q: 4) Compute the peak runoff, Qp, for a 15 year storm using the Rational Method for a drainage basin…

A: Reference : Appendix C - Design chart for rational method. Table : Value of C, Runoff Coefficient…

Q: The following are the ordinates of the hydrograph of flow from a catchment area of 423 km² due to a…

A: Step 1:Step 2:Step 3: Step 4:

Q: Question 3 A watershed of 35 km? was subjected to a storm of 1h duration from which the following…

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Q: 4. Given the inlet below, with h=0.5 ft, W=1.5 ft, L=4.0 ft, and a gutter depression depth=0.33 ft,…

A: The value of "h" = 0.5 ft The value of "W" = 1.5 ft The value of "L" = 4 ft The gutter depression…

Q: Solve the problem using the NRCS method for a watershed located right outside New York City, New…

A: Given, Am = 1.29 sqm HSG B = 65% HSG C = 25% HSG D = 10%

Q: average giver (4) n Figure (4). The time of concentration from the lines AA, BB, CC and DD are 1, 2,…

A: Solution: "By considering the above Diagram given in question" The Calculation for discharge at 'O'…

Q: 2) Determine time of concentration, tc, for use in the Rational Method for a drainage basin having a…

A: Average Grass Overland flow length, L = 80’ Slope, S = 2.5% Shallow Conc. L = 450’ S = 4.8%…

Q: The peak of flood hydrograph due to a 3-hr duration of isolated storm in a catchment is 270 m³/s.…

A: 1. Peak of flood hydrograph: 2. Duration of isolated storm: 3 hours3. Total depth of rainfall: 6…

Q: Questions (3.2) Determine using the 'rational formula' with runoff co-efficient equal to 0.80, the…

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Q: 10-min unit hydrograph for a catchment is given in Table 1 below. Table 1: 10-min Unit Hydrograph…

A: Given Data is of a Unit hydrograph. Time has been given in minutes Discharge is given in m3/s…

Unit Hydrograph

Hydrology is the science which deals with the study of water on the earth’s surface. The word Hydrograph is derived from the word hydro which means water. Hydrograph is basically a graph in which the discharge is plotted against the time interval at a specific point in a river or other channel. In a hydrograph, the discharge is plotted along the y-axis and time interval is plotted along the x-axis. Hydrograph is used to estimate the runoff. The variations in discharges with the change in time is shown by a hydrograph. It was revealed that the total discharge at an outlet increases with time by a kinematic wave model.