Depth of Flow at Inlet given Runoff Quantity with Full Gutter Flow Calculator

✖Runoff Quantity is the amount of water that storms bring to the earth.ⓘ Runoff Quantity [Q_ro]			+10% -10%
✖Length of Opening refers to the dimension of the structure that allows water to pass through.ⓘ 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 refers to the depth of water in a channel or conduit at the point where water enters a structure, such as a culvert, intake structure, or storm water inlet.ⓘ Depth of Flow at Inlet given Runoff Quantity with Full Gutter Flow [y]

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Formula

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Depth of Flow at Inlet given Runoff Quantity with Full Gutter Flow

Formula

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

Example

`"7.117442ft"=(("329ft³/s"/(0.7*"7ft"))^(2/3))-"4ft"`

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Depth of Flow at Inlet given Runoff Quantity with Full Gutter Flow Solution

STEP 0: Pre-Calculation Summary

Formula Used

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

Variables Used

Depth of Flow at Inlet - (Measured in Meter) - Depth of Flow at Inlet refers to the depth of water in a channel or conduit at the point where water enters a structure, such as a culvert, intake structure, or storm water inlet.
Runoff Quantity - (Measured in Cubic Meter per Second) - Runoff Quantity is the amount of water that storms bring to the earth.
Length of Opening - (Measured in Meter) - Length of Opening refers to the dimension of the structure that allows water to pass through.
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.

STEP 1: Convert Input(s) to Base Unit

Runoff Quantity: 329 Cubic Foot per Second --> 9.3162425288798 Cubic Meter per Second (Check conversion here)
Length of Opening: 7 Foot --> 2.13360000000853 Meter (Check conversion here)
Depression in Curb Inlet: 4 Foot --> 1.21920000000488 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

y = ((Q_ro/(0.7*L_o))^(2/3))-a --> ((9.3162425288798/(0.7*2.13360000000853))^(2/3))-1.21920000000488

Evaluating ... ...

y = 2.1693962729996

STEP 3: Convert Result to Output's Unit

2.1693962729996 Meter -->7.11744184052139 Foot (Check conversion here)

FINAL ANSWER

7.11744184052139 ≈ 7.117442 Foot <-- Depth of Flow at Inlet

(Calculation completed in 00.020 seconds)

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Credits

Created by Mridul Sharma

Indian Institute of Information Technology (IIIT), Bhopal

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

Verified by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

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< 10+ Disposing of Storm Water Calculators

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

Go Depth = ((Inlet Capacity/(0.6*Area of Opening))^2)*(1/(2*Acceleration Due To Gravity in Environment))

Depression in Curb Inlet given Runoff Quantity with Full Gutter flow

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

Depth of Flow at Inlet given Runoff Quantity with Full Gutter Flow

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

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

Go Area of Opening = Inlet Capacity/(0.6*(2*Acceleration Due To Gravity in Environment*Depth)^(1/2))

Length of Opening given Runoff Quantity with Full Gutter Flow

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

Inlet Capacity for Flow Depth more than 1ft 5in

Go Inlet Capacity = 0.6*Area of Opening*((2*Acceleration Due To Gravity in Environment*Depth)^(1/2))

Runoff Quantity with Full Gutter Flow

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

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)

Depth of Flow at Inlet given Runoff Quantity with Full Gutter Flow Formula

Depth of Flow at Inlet = ((Runoff Quantity/(0.7*Length of Opening))^(2/3))-Depression in Curb Inlet
y = ((Q_ro/(0.7*L_o))^(2/3))-a

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 Depth of Flow at Inlet given Runoff Quantity with Full Gutter Flow?

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

How to calculate Depth of Flow at Inlet given Runoff Quantity with Full Gutter Flow using this online calculator? To use this online calculator for Depth of Flow at Inlet given Runoff Quantity with Full Gutter Flow, enter Runoff Quantity (Q_ro), Length of Opening (L_o) & Depression in Curb Inlet (a) and hit the calculate button. Here is how the Depth of Flow at Inlet given Runoff Quantity with Full Gutter Flow calculation can be explained with given input values -> 23.35119 = ((9.3162425288798/(0.7*2.13360000000853))^(2/3))-1.21920000000488.

FAQ

What is Depth of Flow at Inlet given Runoff Quantity with Full Gutter Flow?

The Depth of Flow at Inlet given Runoff Quantity with Full Gutter Flow is defined as the depth of flow at the inlet when we have a prior info of amount of the water flow per second, opening length and depression in curb inlet and is represented as y = ((Q_ro/(0.7*L_o))^(2/3))-a or Depth of Flow at Inlet = ((Runoff Quantity/(0.7*Length of Opening))^(2/3))-Depression in Curb Inlet. Runoff Quantity is the amount of water that storms bring to the earth, Length of Opening refers to the dimension of the structure that allows water to pass through & 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.

How to calculate Depth of Flow at Inlet given Runoff Quantity with Full Gutter Flow?

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

How many ways are there to calculate Depth of Flow at Inlet?

In this formula, Depth of Flow at Inlet uses Runoff Quantity, Length of Opening & Depression in Curb Inlet. We can use 1 other way(s) to calculate the same, which is/are as follows -

Depth of Flow at Inlet = (Water Flow/(3*Perimeter of Grate Opening))^(2/3)

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