What is the difference between a detention pond and a retention pond?

What is the difference between a detention pond and a retention pond?

The Difference Between Detention and Retention Ponds A detention, or dry, pond has an orifice level at the bottom of the basin and does not have a permanent pool of water. A retention basin or pond has a riser and orifice at a higher point and therefore retains a permanent pool of water.

What is the difference between retention tank and detention tank?

Both tanks are used to collect rainwater or stormwater. However, a retention tank is designed to keep the water for use at a later date, while a detention tank eventually drains the water shortly after it is collected. For the purpose of clarity, it is worth distinguishing between rainwater and stormwater.

What does a detention pond do?

A common stormwater treatment system is called a wet detention pond. Wet detention ponds contain water at all times and serve a dual purpose. They treat stormwater runoff to protect our creeks and streams, and during severe storms, they help prevent flooding.

What are water retention ponds?

Retention ponds are ponds or pools designed with additional storage capacity to attenuate surface runoff during rainfall events. They consist of a permanent pond area with landscaped banks and surroundings to provide additional storage capacity during rainfall events.

Do detention ponds hold water?

Detention ponds hold water for a short period of time; this pond temporarily holds water before it enters the stream. combination of these types of practices is needed to impact nonpoint source pollution.

Why do neighborhoods have retention ponds?

Retention ponds are permanent structures designed to hold water flow for a short period of time, similar to a dam. In response to a storm, the pond’s water level fluctuates, reducing risk and saving the community from potential flood damage and costly repairs.

What is retention and detention?

By definition, a detention BMP is an area where stormwater is temporarily stored, or detained, and is eventually allowed to drain slowly when water levels recede in the receiving channel. On the other hand, retention stormwater BMPs hold or retain stormwater on a more permanent basis.

What’s the difference between retention time and detention time?

Detention and retention both refer to storing rain water on-site during a storm event, when the risk of flooding is highest. The difference is that when water is detained, it is slowly released into a stream or river and leaves the site. When water is retained, it is not intended to leave the site.

Does a retention pond increase property value?

Any stormwater runoff would normally soak into the ground in a natural environment. These ponds are a solution to significant stormwater runoff issues, such as flooding and pollution. Another significant benefit is an increase in property values. Retention ponds can increase a rural home’s property by up to 15%.

Can you fish in a retention pond?

A: It is legal to fish storm water retention ponds, so long as the angler has a valid fishing license, said Lisa Coleman of the city’s engineering department. As for consuming fish from a retention pond, Coleman said she wouldn’t recommend it.

What is the difference between a detention and a retention pond?

The difference between a retention pond and a detention pond is simple. The retention pond is designed to always have water in it and a detention pond only detains the water during rainy periods. Both retention and detention ponds are designed to help control the runoff and limit flooding during high water times.

What’s the difference between detention and retention?

4 Differences Between Detention and Retention Ponds Wet versus Dry. The biggest difference between detention and retention ponds is how long they hold water. Detention Ponds are more common in the West. In areas that are really dry, when it does rain, detention ponds give a place for snow to melt or stormwater Different kinds of basins. Both types assist with flood management.

How deep are retention ponds?

The detention pond’s depth influences its water quality. Generally, detention ponds should be deep enough to maintain open water areas and limit sediment resus- pension by current, wind, or waves. Typically, the average depth should be at least 4-5 feet and maximum depth at least 8 feet.

What is the definition of a retention pond?

A retention pond is a man-made pond or reservoir that is designed to catch runoff water from higher elevation areas. The structures can be either temporary or permanent depending on the circumstances and the volume of water at issue. Most are built to be sloped basins that capitalize on gravity and the natural flow…