Runoff Quantity with Full Gutter Flow Calculator

✖Length of Opening is the length of the opening in ground.ⓘ Length of Opening [L_o]			+10% -10%
✖Depression in Curb Inlet is the height of depression at the curb achieved from the steeper grade of the gutter cross slope relative to the roadway cross-slope.ⓘ Depression in Curb Inlet [a]			+10% -10%
✖Depth of Flow at Inlet is the flow length at the inlet.ⓘ Depth of flow at Inlet [y]			+10% -10%

✖Quantity of Runoff is the amount of water that storms bring to the earth.ⓘ Runoff Quantity with Full Gutter Flow [Q_R]

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Formula

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Runoff Quantity with Full Gutter Flow

Formula

`"Q"_{"R"} = 0.7*"L"_{"o"}*("a"+"y")^(3/2)`

Example

`"123.974ft³/s"=0.7*"7ft"*("4ft"+"1.8ft")^(3/2)`

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Runoff Quantity with Full Gutter Flow Solution

STEP 0: Pre-Calculation Summary

Formula Used

Quantity of Runoff = 0.7*Length of Opening*(Depression in Curb Inlet+Depth of flow at Inlet)^(3/2)
Q_R = 0.7*L_o*(a+y)^(3/2)
This formula uses 4 Variables

Variables Used

Quantity of Runoff - (Measured in Cubic Meter per Second) - Quantity of Runoff is the amount of water that storms bring to the earth.
Length of Opening - (Measured in Meter) - Length of Opening is the length of the opening in ground.
Depression in Curb Inlet - (Measured in Meter) - Depression in Curb Inlet is the height of depression at the curb achieved from the steeper grade of the gutter cross slope relative to the roadway cross-slope.
Depth of flow at Inlet - (Measured in Meter) - Depth of Flow at Inlet is the flow length at the inlet.

STEP 1: Convert Input(s) to Base Unit

Length of Opening: 7 Foot --> 2.13360000000853 Meter (Check conversion here)
Depression in Curb Inlet: 4 Foot --> 1.21920000000488 Meter (Check conversion here)
Depth of flow at Inlet: 1.8 Foot --> 0.548640000002195 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Q_R = 0.7*L_o*(a+y)^(3/2) --> 0.7*2.13360000000853*(1.21920000000488+0.548640000002195)^(3/2)

Evaluating ... ...

Q_R = 3.51055253873225

STEP 3: Convert Result to Output's Unit

3.51055253873225 Cubic Meter per Second -->123.973992912117 Cubic Foot per Second (Check conversion here)

FINAL ANSWER

123.973992912117 ≈ 123.974 Cubic Foot per Second <-- Quantity of Runoff

(Calculation completed in 00.004 seconds)

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Home » Engineering » Civil » Environmental Engineering » Flow velocity in straight sewers » Disposing of storm water » Runoff Quantity with Full Gutter Flow

Credits

Created by Mridul Sharma

Indian Institute of Information Technology (IIIT), Bhopal

Mridul Sharma has created this Calculator and 200+ more calculators!

Verified by M Naveen

National Institute of Technology (NIT), Warangal

M Naveen has verified this Calculator and 900+ more calculators!

< 10+ Disposing of storm water Calculators

Depth of Flow at Inlet when Runoff Quantity with Full Gutter Flow is Giiven

Go Depth of flow at Inlet = ((Quantity of Runoff/(0.7*Length of Opening))^(2/3))-Depression in Curb Inlet

Depression in Curb Inlet given Runoff Quantity with Full Gutter flow

Go Depression in Curb Inlet = ((Quantity of Runoff/(0.7*Length of Opening))^(2/3))-Depth of flow at Inlet

Length of Opening given Runoff Quantity with Full Gutter Flow

Go Length of Opening = Quantity of Runoff/(0.7*(Depression in Curb Inlet+Depth of flow at Inlet)^(3/2))

Runoff Quantity with Full Gutter Flow

Go Quantity of Runoff = 0.7*Length of Opening*(Depression in Curb Inlet+Depth of flow at Inlet)^(3/2)

Depth of Flow given Inlet Capacity for Flow Depth more than 1ft 5in

Go Depth = ((Inlet Capacity/(0.6*Area))^2)*(1/(2*Acceleration due to Gravity))

Area of Opening given Inlet Capacity for Flow Depth more than 1ft 5in

Go Area = Inlet Capacity/(0.6*(2*Acceleration due to Gravity*Depth)^(1/2))

Inlet Capacity for Flow Depth more than 1ft 5in

Go Inlet Capacity = 0.6*Area*((2*Acceleration due to Gravity*Depth)^(1/2))

Depth of Flow at Inlet given Inlet Capacity for Flow Depth up to 4.8in

Go Depth of flow at Inlet = (Water Flow/(3*Perimeter of grate opening))^(2/3)

Perimeter when Inlet Capacity for Flow Depth is up to 4.8 inches

Go Perimeter of grate opening = Water Flow/(3*Depth of flow at Inlet^(3/2))

Inlet Capacity for Flow Depth

Go Water Flow = 3*Perimeter of grate opening*Depth of flow at Inlet^(3/2)

Runoff Quantity with Full Gutter Flow Formula

Quantity of Runoff = 0.7*Length of Opening*(Depression in Curb Inlet+Depth of flow at Inlet)^(3/2)
Q_R = 0.7*L_o*(a+y)^(3/2)

What is a curb inlet?

Curb Inlets are used to assist in storm water drainage of the street surface area. The Curb Inlet is usually a below ground box structure with a vertical opening at the street level.

How to Calculate Runoff Quantity with Full Gutter Flow?

Runoff Quantity with Full Gutter Flow calculator uses Quantity of Runoff = 0.7*Length of Opening*(Depression in Curb Inlet+Depth of flow at Inlet)^(3/2) to calculate the Quantity of Runoff, The Runoff quantity with full gutter flow formula calculates the amount of the water flow per second when we have a prior info of opening length,depression in curb and depth of flow at the inlet. Quantity of Runoff is denoted by Q_R symbol.

How to calculate Runoff Quantity with Full Gutter Flow using this online calculator? To use this online calculator for Runoff Quantity with Full Gutter Flow, enter Length of Opening (L_o), Depression in Curb Inlet (a) & Depth of flow at Inlet (y) and hit the calculate button. Here is how the Runoff Quantity with Full Gutter Flow calculation can be explained with given input values -> 4378.1 = 0.7*2.13360000000853*(1.21920000000488+0.548640000002195)^(3/2).

FAQ

What is Runoff Quantity with Full Gutter Flow?

The Runoff quantity with full gutter flow formula calculates the amount of the water flow per second when we have a prior info of opening length,depression in curb and depth of flow at the inlet and is represented as Q_R = 0.7*L_o*(a+y)^(3/2) or Quantity of Runoff = 0.7*Length of Opening*(Depression in Curb Inlet+Depth of flow at Inlet)^(3/2). Length of Opening is the length of the opening in ground, Depression in Curb Inlet is the height of depression at the curb achieved from the steeper grade of the gutter cross slope relative to the roadway cross-slope & Depth of Flow at Inlet is the flow length at the inlet.

How to calculate Runoff Quantity with Full Gutter Flow?

The Runoff quantity with full gutter flow formula calculates the amount of the water flow per second when we have a prior info of opening length,depression in curb and depth of flow at the inlet is calculated using Quantity of Runoff = 0.7*Length of Opening*(Depression in Curb Inlet+Depth of flow at Inlet)^(3/2). To calculate Runoff Quantity with Full Gutter Flow, you need Length of Opening (L_o), Depression in Curb Inlet (a) & Depth of flow at Inlet (y). With our tool, you need to enter the respective value for Length of Opening, Depression in Curb Inlet & Depth of flow at Inlet and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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