6.... A small watershed with 2-yr 24-hr rainfall depth of 3 inches has a maximum hydraulic distance of 1,600 feet. Of which sheet flow occurs for first 95 feet while the concentrated sheet flow occurs for the rest of the hydraulic travel distance. Sheet flow section of the watercourse has dense grass with Manning's constant (n) of 0.24 with slope 0.01. While the concentrated sheet flow section of the watercourse has average velocity of 1.5 ft/sec. Determine Time of Concentration for the watershed for 2-yr 24-hr rainfall.

Q: Given the recoding gage chart in Figure, answer the next three questions. 13 12 11 10 9 8 7 4 3 2 0…

A: Given data in question  Graph Between precipitation depth VS time duration  To find out Total…

Q: A catchment consists of an asphalt pavement that drains into a rectangular concrete  channel. The…

A: Given data:- The given asphalt has an average slope is, 0.6% The catchment boundary to the drain is,…

Q: Q. Find the Lacey's scour depth for a stream carrying discharge of 4 cumec/m and having silt factor…

A: Lacey's Scour depth for stream is given by ; R =1.35 ×(q2f)13  Where ; R = Scouring depth q =…

Q: A uniform rainfall with the intensity of 7.9 in/hr happened across an entire watershed. The soil has…

A: It is required to determine the value of ∆θ. ∆θ=1-Seθe Here Se the initial moisture content, θe and…

Q: In Thakurgaon district, a man-made channel is to be constructed parallel to Shuk river 500 m away…

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Q: Design an irmigation channel to carry 45 cumecs of discharge. Slope is I in 3700. Lacey's Silt…

A: To Determine Design an irrigation Channel using Lacey's method.

Q: The hydraulic jump occurs in a trapezoidal channel with side slopes of 1:1 and a base of 4m. If the…

A: Given:- Upstream depth  before jump, y1 = 1 m Down stream depth, y2 = 2 m Base width of channel, b =…

Q: The peak of flood hydrograph due to a 3-h duration isolated storm in a catchment is 300 m3/s. The…

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Q: Question- A sediment reservoir is planned for a 2100 sq.m site that has a peak inflow of 120cumec.…

A: Given- Area A= 2100 sq.m, Peak inflow =120 cumec, 4cm rainfall, The runoff R = 2.04 cm, Peak…

Q: A river discharges 1000 cum/sec of water at high flood level of RL 103 m. A weir is constructed for…

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Q: It is proposed to adopt the dilution method of stream gauging for a river whose hydraulic properties…

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Q: (A) what is the discharge per foot of width of channel (i.e., q)? (B) compute the energy loss (in…

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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: A wood crib filled with earth serves as a temporary cofferdam across a canal to lower the water…

A: Length of the cofferdam (L): 200 ftWidth of the cofferdam (W): 30 ftHydraulic conductivity (k):…

Q: Q- An unlined canal under regime conditions along with a silt factor of 1 has a width of flow 71.25…

A: Given Data  Silt factor (f) = 1  Width of flow (B) = 71.25 m  Assume unlined wide channel  Find…

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: in a border irrigation run, Q= 8 l/s, n= 0.15, and %3D S=0.45%. The water depth at the inlet can be…

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Q: In a wide rectangular channel (R~yO), if the normal depth is increased by 20%, the discharge would…

A: Given-Wide rectangular channel-Normal depth is increased by 20%,It is needed to find the % increase…

Q: The rainfall depths recorded by Gauge A, B and C are 10mm, 8mm, 7mm and the corresponding polygon…

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Q: ▪ An unlined canal under regime conditions along with a silt factor of 1 has a width o flow 71.25 m.…

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Q: Four wells located at the corners of a square area with side length of 50 m are to be used to…

A: NOTE: We don't provide handwritten solutions. Given, Drawdown= S= 6m K= 1m/d Saturated thickness= 30…

Q: n Thakurgaon district, a man-made channel is to be constructed parallel to Shuk river 500 m away…

A: A.Determine the maximum elevation of the water table=10 m The location of groundwater=500 m as per…

Q: The wetted perimeter of a regime channel for a discharge of 64 m³/s, as per Lacey's theory, will

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Q: Design an irrigation channel in alluvial soil according to Lacey's silt theory with the following…

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Q: 6. A sand layer lies beneath the levee pictured below. The hydraulic conductivity of the sand layer…

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Q: 2. A wide rectangular channel is to carry a discharge intensity of 2.0 m³/s/m width at a Froude…

A: For a wide rectangular Channel section carrying discharge of 2.0 m3/ s/m width find the  a) Normal…

Q: Q 1 (part ii) A 4m wide rectangular channel (n=0.013) carries the water on a 2% slope from the…

A:

Q: An unlined canal under regime conditions along with a silt factor of 1 has a width c flow 71.25 m.…

A: Given:Width of channel(B)=71.25 msilt factor(f)=1For a unlined rectangular…

Q: 1.5m 0.70 H20 Sand 1.2 e=0.50. A 1.0 B valve оpen flow

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Q: Explain the auger method and the wash boring method.

A: Making and advancing of bore holes is known as Boring. It is the first step for the collection of…

Q: A uniform rainfall with the intensity of 7.9 in/hr happened across an entire watershed. The soil has…

A:

Q: The sequent depth ratio in a hydraulic jump formed in a rectangular horizontal channel is 10. The…

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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.