Information on the 50-year storm is given Duration (minutes) 15 30 45 60 180 Rainfall (mm) 40 60 75 100 120   A culvert has to drain 200 ha of land with a maximum length of travel of 1.25 km. The general slope of the catchment is 0.001 and its runoff coefficient is 0.20. Estimate the peak flow by the rational method for designing the culvert for a 50-year flood

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 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: Example. A rectangular sedimentation tank has a length of 10m and a width of 5m. For a flow rate of…

A: Introduction : Weir loading rate is the design parameter of sedimentation tank Weir loading…

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: GF Q2: Estimate the peak flowrate for a catchment which has an area of 10 km². The length and slope…

A: Answer  We know that peak flow rate is given by Q = A*I*R360 where  Q = peak flow rate in m3/sec A =…

Q: The average water surface area in a reservoir is 5000ha, calculate the water surface elevation in…

A: As per water balance Equation ∑Inflow - ∑Outflow = Change in Storage Final elevation = Initial…

Q: A four hour unit hydrograph of a catchment is triangular in shape with base of 80 hours. The area of…

A: Given data- 4 hour unit hydrographTriangular hydrographbase 80 hoursA=720 km2To Find-The peak flood…

Q: Q15. Storm drainage of an area of 0.15 km^2 will be based on rainfall of 10-year return period. The…

A:

Q: A peak flow of a flood hydrograph due 3 to a 6 hour storm is 470 m/s. The corresponding average…

A:

Q: The streamflow clata given in the lable was produced by a storm of 1-hour duration considered to…

A:

Q: A bridge is proposed across a stream which has a catchment area of 3200 km². Ryve's coefficient of C…

A: Given data : The value of Ryve's coefficient C=10 The value of catchment area A=3200 km2   To find :…

Q: If the following runoff is created by 5 hours of rainfall with a depth of 30 cm. What is the…

A: Rainfall Depth = 30 cm Duration of rainfall = 5 hours

Q: The drainage area of a watershed is 50 km2. The index is 0.5 cm/hour and the base flow at the outlet…

A: Given data  Watershed area (A) = 50 km2  Φ-index = 0.5 cm/hr Base flow = 10 m3/s  1hr UH  have time…

Q: a small watershed consists of the following: Area Land use Soil type (Donum) 12000 Residential lot…

A: For the soil type D, B, A and A the runoff coefficient is .85, .1, .2 and .25 respectively. The…

Q: a. Using the rainfall data provided in Table 1, the two-hour unit hydrograph given in Table 2, a…

A: The rainfall data are provided in the table 1 and two hour UH is given in the table 2 we need to…

Q: 1. The following is a formula for calculating the maximum flood discharge Q from a catchment of area…

A:

Q: Answer question 1

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

Q: A catchment area of 120 sq km has three distinct zones, namely zone A with an area of 61 sq.km and…

A: Given data,  Total area = 120 km² Zone A area = 61 km²  & Runoff = 52 vm Zone B area = 39 km²…

Q: Direction: One hour triangular unit hydrograph of a watershed has the peak discharge of 60 m³/sec.cm…

A: Peak discharge = 60 m3/sec.cm Duration = 10 hrs. Time base 30 hrs. f index = 0.4 cm per hrs. Base…

Q: Given is the hydrograph of 2 hour, find the unit hydrograph of 4 hours. The value of excess rainfall…

A: Excess Rainfall = 12 cm Base flow = 20 m3/s 2 hr Hydrograph = Time 0 2 4 6 8 10 12 14 Ordinates…

Q: 1. Determine the direct runoff hydrograph by separating the baseflow. 2. Derive the unit hydrograph…

A: 1- Determination of Direct Runoff hydrograbh and UNIT hydrograbh ###

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

A:

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: Q3: A river catchment has a 2.0 hour unit hydrograph with the ordinates 0,3,11,35,55,66,63,40,22,9…

A:

Q: Problem 5.3 Given below in. Table 5.10, are the daily mean flows (m'/s) at a gauging station for a…

A: Given:- The daily mean flows at a gauging station are given  The number of days = 5 days The…

Q: 1) The inflow hydrograph generated by a 100 year storm is given in the Table 1. A flood control…

A: using2S∆t+QwhereS= storageQ= discharge∆t=12 hrsfor the intervals

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: For a catchment of area 4400 ha, the maximum flood flow will be. Dicken's formula and take CD= 6).…

A: For a catchment area,Catchment area,A=4400 hectare (ha)Dicken's coeffiient,To find maximum flood…

Q: Q2. Direct runoff hydrograph and catchment area The outflow hydrograph from the storm in Q1 is as…

A: Data is as given below

Q: An effective rainfall of 2 hour duration produced a flood hydrograph peak of 200 m³/s. The flood…

A: Given data- Rainfall = 2 cm, Base flow=20 m3/s, Flood hydrograph peak = 200 m3/s, ϕ=0.4 cm/hr, To…

Q: A full direct runoff hydrograph (DRH) contributes 3.53 cm of runoff depth. If the DRH discharge at t…

A: Effective rainfall: (ER) = 3.53 cm  Peak discharge at 12 hour of DRH: Q = 235 m3/s  To calculate:…

Q: An effective rainfall of 2-hour duration produced a flood hydrograph peak of 200 m³/s. The flood…

A:

Q: Question SIX An open channel model is constructed to a vertical scale of 1:100 and a horizontal…

A:

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: From the data given in Table 6.1 below, derive a 6-hour unit hydrograph if this data is obtained…

A: given, the given question is from hydrology and water resource engineering. our aim is to derive 6hr…

Q: A peak flow of a flood hydrograph due 3 to a 6 hour storm is 470 m³/s. The corresponding average…

A: Given- 6 hour stormPeak flow Qf=470 m3/sAverage depth d=8 cm=0.80 mInfiltration loss I=0.25…

Q: 4. Evaluale the peak flow for the following catchment: A=200 ha, runoff coefficient= 0.5,…

A: Given data : Runoff coefficient (C)=0.5Area (A)=200 haPrecipitation intensity (i)=1 cm/hr

Q: A catchment having an area of 150 km2 has the ø index 0.3 cm/hr. The base flow at the 3 outlet is…

A:

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: A catchment has a runoff coefficient of 0.42, area = 85 ha with a general slope of 1 in 200 and…

A: Area (A) = 85 ha Slope (S) = 1 in 200 or 0.005Length (L) = 1.8 km or 1800 m

Q: The excess runoff hydrograph from a catchment area 10 km² due to a storm of 6 hrs duration has been…

A: Given- Catchment area=10 km2 6 hours storm duration triangular in shape, Peak flow = 10 m3/s, Base…

Q: A catchment has a drainage area of 0.025 km², a runoff coefficient of 0.6, an inlet time of 20…

A: This question is from Hydrology.

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…

A:

Q: :The direct runoff hydrograph is 64hr and maximum discharge is 30 m/sec. If the observed runoff due…

A: Direct runoff hydrograph resulting from a unit depth of excess rainfall occurring uniformly on a…

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.