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Mean Depth refers to the average depth of water in a stream channel or conduit. Mean Depth is equal to the cross-sectional area divided by the surface width.

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Table of Contents:

**Formula**

**Mean Depth :**

h_{m} = A/T

**Area of Section Flow :**

A = h_{m}*T

**Top Water Surface Width :**

T = A/ h_{m}

**Where,**

h_{m} = Mean Depth,

A = Area of Section Flow,

T = Top Water Surface Width.

The advanced online Mean Depth Calculator is useful in calculating the hydraulic mean depth of water.

__Example__:

Calculate the Mean depth of water in a stream by the given details.

Area of Section Flow (A) = 25 m^{2}

Top Water Surface Width (T) = 20 m

__Solution__:

**Apply Formula:**

h_{m} = A/T

h_{m} = 25/20

**Mean Depth (h _{m}) = 1.25 m**

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