The image above represents hydrostatic pressure of a dam.

To compute for hydrostatic pressure of a dam, two essential parameters are needed and these parameters are **Specific Weight of Water (γ) and Depth of water (h).**

The formula for calculating hydrostatic pressure of a dam:

H_{n} = ^{γh²} / _{2}

Where:

H_{n} = Hydrostatic Pressure of a Dam

γ = Specific Weight of Water

h = Depth of Water

Let’s solve an example;

Find the hydrostatic pressure of a dam when the specific weight of water is 10 and the depth of water is 5.

This implies that;

γ = Specific Weight of Water = 10

h = Depth of Water = 5

H_{n} = ^{γh²} / _{2}

H_{n} = ^{(10)(5)²} / _{2}

H_{n} = ^{10(25)} / _{2}

H_{n} = ^{250} / _{2}

H_{n} = 125

Therefore, the **hydrostatic pressure of the dam** is **125**.

**Calculating the Specific Weight of Water when the Hydrostatic Pressure of the Dam and the Depth of Water is Given.**

γ = ^{Hn x 2} / _{h2}

Where;

γ = Specific Weight of Water

H_{n} = Hydrostatic Pressure of a Dam

h = Depth of Water

Let’s solve an example;

Find the specific weight of water when the hydrostatic pressure of a dam is 30 and the depth of water is 6.

This implies that;

H_{n} = Hydrostatic Pressure of a Dam = 30

h = Depth of Water = 6

γ = ^{Hn x 2} / _{h2}

γ = ^{30 x 2} / _{62}

γ = ^{60} / _{36}

γ = 1.667

Therefore, the **specific weight of water **is** 1.667.**

**Calculating the Depth of Water when the Hydrostatic Pressure of the Dam and the Specific Weight of Water is Given.**

h = √^{Hn x 2} / _{γ}

Where;

h = Depth of Water

H_{n} = Hydrostatic Pressure of a Dam

γ = Specific Weight of Water

Let’s solve an example;

Find the depth of water when the hydrostatic pressure of a dam is 12 and the specific weight of water is 4.

This implies that;

H_{n} = Hydrostatic Pressure of a Dam = 12

γ = Specific Weight of Water = 4

h = √^{Hn x 2} / _{γ}

h = √^{12 x 2} / _{4}

h = √^{24} / _{4}

h = √6

h = 2.449

Therefore, the **depth of water **is **2.449.**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the depth of water.

To get the answer and workings of the depth of water using the **Nickzom Calculator – The Calculator Encyclopedia. **First, you need to obtain the app.

You can get this app via any of these means:

**Web** – https://www.nickzom.org/calculator-plus

To get access to the **professional **version via web, you need to **register** and **subscribe **for** NGN 1,500 **per** annum** to have utter access to all functionalities.

You can also try the **demo **version via https://www.nickzom.org/calculator

**Android (Paid)** – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)** – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)** – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to the **Calculator Map, **then click on **Agricultural **under **Engineering****.**

Now, Click on **Water Budget **under **Agricultural**

Now, Click on **Hydrostatic Pressure of a Dam** under **Water Budget**

The screenshot below displays the page or activity to enter your values, to get the answer for the hydrostatic pressure of a dam according to the respective parameters which are the **Specific Weight of Water (γ) and Depth of water (h).**

Now, enter the values appropriately and accordingly for the parameters as required by the **Specific Weight of Water (γ)** is **10 **and** Depth of water (h)** is **5**.

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia solves for the hydrostatic pressure of a dam and presents the formula, workings and steps too.