PROBLEM 2 Monthly rainfall values of 50% dependable year at a site selected for construction of irrigation tank is given below. Estimate the monthly and annual runoff volume of this catchment of area 2000 ha. [Assume the catchment classification as Good Catchment] Use Strange's Table Month June July Aug Sept Oct Monthly rainfall (mm) 100 175 150 30 200

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: A field channel has cultivable commanded area of 2000 hectares. The intensities of irrigation for…

A:

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: 3.consider 2 pipes and 2 inlets in fig below.Calculate peak flow handled by this system Assume, Tc…

A:

Q: =pectively and for rice as 19.0 cm and 2.5 weeks respectively, compute the average disc quirement…

A: Answer: Avg discharge requirement = 2.89 cumecPeak demand = 3.14 cumec Solution: Given,   Wheat…

Q: If the runoff from an area of 22 m^2 is 16.5 L/min, determine the infiltration capacity under a…

A:

Q: Estimate the lag time (hr) for the following watershed: Hydraulic length (km) - 3.04 Curve number 60…

A: Given data:Hydraulic length(L)=3.04 km=9973.753 ft.Curve number(CN)=60 Average land slope(S)=1.1%

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

A: To calculate runoff

Q: Groundwater flows through an aquifer with a cross-sectional area of 1.0 × 104 m² and a length of…

A: Given data- Area of the aquifer- A=1.0×104 m2,Length L=1500 m,Heads 300 m & 250 m,Discharge…

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: Determine the time of concentration for use in the Rational Method for a drainage basin having  the…

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

Q: Q2/ A farm has area 50 donum. Cu =16.1 mm/day, farm losses is 15% of net depth. If the time…

A: Given Data: Area of farm is A=50 donum. Consumptive use is Cu=16.1 mm/day. Farm Losses is 15% of net…

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: A 12-hour unit hydrograph (of 1 cm excess rainfall) of a catchment is of a triangular shape with a…

A:

Q: A catchment area 5000 km². In one day, the depth of precipitation is 55mm, Evapotranspiration is 0.8…

A: From given data: A=5000 km2=5×109 m2Vpresipitation=dpresipitation×A=0.055 m×5×109 m2=275×106…

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

A: To find outflow

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: Compute the discharge.

A: To find: Discharge

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

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: Determine the time required to irrigate a strip of land of 0.04 hectares in area from a tube-well…

A: Given data- Area , A= 0.04 hectares           = 0.04×104 m2=400 m2 Discharge (Q) = 0.02 m3/sec,  f =…

Q: A catchment area 5000 km2. In one day, the depth of precipitation is 55mm, Evapotranspiration is 0.8…

A:

Q: A field channel has cultivable commanded area of 2000 hectares. The intensities of irrigation for…

A: A field channel-Cultivable command area-CCA=2000 ha,Intensity of irrigation for wheat…

Q: Analyse the given water distribution network using Hardy Cross method. Data: Inflow = 500 m³/sec…

A:

Q: A 100 ha watershed has the following characteristics i. Maximum length of travel of water in the…

A: Step 1: Calculate the Concentration Time (tc​)Given the formula for concentration 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: The following table gives values of measured discharges at a stream gauging site in a year. Upstream…

A:

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

A:

Q: O -index is 0.5 cm/h and the base flow at the outlet is The drainage area of a watershed is 50 km2 D…

A:

Q: Balili Watershed is 2500 square kilometer in area and receives 1300mm of rainfall in a year, the…

A: Given : Watershed area = 2500 km2 Precipitation = 1300 mm Outflow = 30 m3/sec

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: A reservoir is to be constructed with the following characteristics: Mean Annual Runoff, MAR =50mm…

A: Weibull distribution P(X -x) = 1-e-(aX/x)b

Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.