An urban catchment has an area of 0.85 km². The slope of the catchment is 0.006 and the maximum length of travel of water is 950 m. The maximum depth of rain with a 25 year return period is as shown: Duration (min) 5 10 20 30 Rainfall (mm) 17 26 40 50 40 57 60 62 If a culvert for drainage at the outlet of this area is to be designed for a return per of 25 years, estimate the required peak-flow rate by assuming the runoff coeffici of 0.3

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: 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: Problem 4. An irrigation system consists of 5 parallel triangular-shaped swales (Fig. 4). The…

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

A:

Q: Last two digit 30

A: yn=1m R=yn=1m ( for wide rectangular channel)

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: 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: A saddle siphon spillway has the following data: Full reservoir level = 485.9 m Level of centre of…

A: Given:Full reservoir level = 485.9 mLevel of centre of siphon outlet = 479.6 mHFL=High flood level =…

Q: (b) A simple reservoir has a linear storage indication curve defined by Q/2 = S/At, where At = 1.0…

A: Given, Q/2 = S /Δt, where Δt = 1.0 h S at 8 A.M=0 ft3 /s-hr To determine, Route the hydrograph

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: Determine the peak flow of return period 5 years at the outlet D. The IDF equation for the area is:…

A:

Q: The length of a parking lot is L = 100 m, and it is sloped at So = 0.02. The surface of the lot is…

A: The time of concentration (tc) represents the time it takes for the water to flow from the furthest…

Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.