The daily record of rainfall over a catchment area is 0.2 million cubic meters. It has been found that 80% of the rainwater reaches the storage reservoir and then passes over a rectangular weir. What should be the length of the weir, if the water is not to rise more than 426mm above the crest? Assume suitable value of coefficient of discharge for the weir as 0.62.

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

A:

Q: A rectangular reservoir with dimensions 3.30m and 2.98 discharges water through a suppressed weir…

A: Given:- Dimensions of rectangular reservoir Length = 3.30 m Breadth = 2.98 m Depth of flow over weir…

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: stream with a flowrate of 10 m3/min and an MTBE concentration of 5 g/m3 flows into the first…

A: Inflow rate = Inflow concentration = Reservoir volume (V) = Time (t) = 1 hour = 60 minutes

Q: USING FRANCIS FORMULA: A rectangular suppressed weir of length 1 m is constructed or cut at the top…

A: From the given question, it is required to compute the time required to discharge 72 m3 of water…

Q: The daily record of rainfall over a catchment area is 0.2 million cubic meters. It has been found…

A: Given: Total rainfall over the catchment (QR) = 0.2 million cubic meter. QR = 0.2 x 106 m3 The head…

Q: Situation 2: A reservoir with vertical sides has a plan area of 560 x 106 sq.cm. If the discharge…

A: Given : Plan area of reservoir with vertical sides, A = 56000 m2Crest length of the trapezoidal…

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

A:

Q: It is required to find the maximum flow rate to be used in the design for the rainwater system to be…

A: To obtain maximum flow rate in the designing of the rainwater system. Total area = 3.2 km2…

Q: Analyse the flow of a 10m wide rectangular channel with a crump weir. Crest is 50cm above the…

A: Given data:- Width of rectangular channel, b = 10 m Height of crest, h = 50 cm Height of the…

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: 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: Q.64 The town of Panipat has a low turbidity raw water and is designing its overflow weir at a…

A: given- overflow rate=180 m3/d/mflow rate=0.6 m3/s

Q: a) Table shows total rainfall for each month of the year 2012 for a 200 m? sub- basin located…

A: Given data: Area of sub-basin = 200 m2 Runoff generated = 70% Evaporation = 2 mm/day

Q: Determine the minimum discharge in the pipe for this condition. is desired to increase the discharge…

A: According to given data  Two reservoirs have a minimum difference in water-surface elevation of 40 m…

Q: QUESTION 1 (C01:PO1) A flood control reservoir has an average surface area of 5 km2. During the…

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Q: Consider the following data for a drain L=50 m, a= 10 m, b=D10.3 m, and k=1x 10 m/s If the drains…

A: Given, L= 50m a = 10m b = 10.3m K = 1×10^-⁵ m/s

Q: Develop the following triangular inflow hydrograph through a linear reservoir: Peak inflow R = 4737…

A: To find outflow

Q: During a storm event, the measured discharge of the river to a reservoir is 58 cu. m. per sec (cms).…

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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: 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: 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: 21) A water treatment plant treats 12000 m/d of raw water by using three rectangular clarifiers,…

A: Given,  Flow= 12,000 m³/day We have 3 Rectangular Clarifiers.  Each clarifier dimensions:  25m×5m×4m…

Q: Average runoff from a 600 km2 catchment area was measured as 60 m3/s for a 3-hr period .lf the…

A:

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: We are to determine the seepage (infiltration) in a 250 hectare reservoir. The reservoir has 0.50…

A: Given, A = 250 ha or 2500000 m2 Qin = 0.50 m3/s Qout = 0.30 m3/s Qi = 0.10 m3/s  P = 20 mm or 0.02m…

Q: initial capacity of 25,000 acre-ft if the average annual inflow is 40,000 acre-ft ,The useful life…

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Q: the Question in the attachment picture ,  Find the following :-  1- Inflow discharge (mm/year) =…

A: From the given hydrological data it is required to find the inflow & outflow discharge, change…

Q: 4. A reservoir has an average area of 50 km2 over a year. The normal annual rainfall at the place is…

A:

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: The observed rainfall and discharge of a catchment is given the table. The catchment area is…

A:

Q: b) A slightly permeable catchment has an area of 40 hectares. The distance from the farthest point…

A: Given: Area, A = 40 hectares Length, L = 2000 m Height, h = 10 m T = 10 years

Q: 3. For a 2 hour, 8 mm/h intensity rainfall, the hydrograph given in Table is observed. The area of…

A: time (hr)024681012141618202224flow rate(m3/sec)81814304538282418141088The area of watershed = 500…

Q: The following data was collected during a 5-hour storm. If the base flow for the stream is 35 m?/s,…

A: Given: Base flow = 35 m3/s   Also, Let area of basin = 2 km2

Q: A 12 hour rainfall with uniform intensity of 4 cm/hr produces a storm hydrograph of peak discharge…

A: given- 12 hr rainfallintensity I=4 cm/hrpeak discharge=1000 m3/sbase flow=30 m3/s

Q: Water is to be discharged from an 8-m-deep lake into a channel through a sluice gate with a 5-m wide…

A:

Probability, risk and uncertainty analysis for hydrological design

It gives a framework that is financially critical for finding the exceptional designs of hydrological systems with a reduced cost in total inclusive of the project cost and the disaster mitigation cost. But there would be hardly any assessment of a decent quality damage function. Hence, errors in demonstrating the hydrologic events, incorrect model parameters, and so on may occur. Here, we will discuss a specific hydrological design that of a detention basin for studying and understanding the risk-based procedure, uncertainties, and probability analysis by following a systematic framework.