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 le

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: 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: 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…

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Q: Answer question 1

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

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

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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: of 15 m/s, estimate the direct runoff hydrograph (DRH) and the discharge of the 6 -h unit hydrograph…

A: Peak flow Average depth Infiltration loss =0.25 cm/h,Base flow It is required to find the peak…

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: Two storms, each of 4-hr duration and having rainfall excess of 3.0 and 2.0 cm, respectively, occur…

A: ##Resultanting Direct Runoff Hydrograbh for First and Second Period of time  ###

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: a drainage basin with the following characteristics: Drainage Area is 125 acres Short grassy…

A: Applying snyder Mathode and using appropriate values of constand

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: Followings are given for a watershed: Rational method coefficient C = 0.37 Time of concentration =…

A: Solution: Given Data: Rational coefficient method, C=0.37Time of concentration=30 minWatershed…

Q: Please answer if sure it is correct. WILL thumbs up if correct.

A: Please refer below pages.If you have any doubts please feel free to ask.Explanation:Step 1:Step 2:…

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: Q2- A cumulative runoff depth 33mm , determine Ø - index and estimate volume of infiltration in…

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Q: The stream flow data for a basin with an area of 3500 km2 are given in the table 1, a. Separate the…

A: Area, A=3500 basin area NO. Accumulative time Total flow m3/s 1  8.00 Pm 16 2  9.00 Pm 15 3…

Q: Problem 4.8 (page 174): The time of concentration of a 2 ac catchment is 20 min. If the composite…

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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.