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Harris County's
Flooding History
Harris County's
Floodplain Types
Watersheds and
Sub-Watersheds
Addicks Reservoir
Armand Bayou
Barker Reservoir
Brays Bayou
Buffalo Bayou
Carpenters Bayou
Cedar Bayou
Clear Creek
Cypress Creek*
Galveston Bay
Greens Bayou
Hunting Bayou
Jackson Bayou
Luce Bayou
San Jacinto River
Sims Bayou
Spring Creek
Spring Gully & Goose Creek
Vince Bayou
White Oak Bayou
Willow Creek
Harris County
Watersheds Puzzle
Landowner's Bill of Rights
LiDAR: What is it?
Maintenance or Management?
Quizzes
Stormwater Detention: How It Works
TS-Allison Overview
Who Owns the Raindrop?
WRDA: What is it?

Harris County's Watersheds


You may ask, "What exactly is a watershed?"
Basically, a watershed is a land area that ultimately drains rainfall runoff (or stormwater) to a common outlet point - typically a body of water, which is mostly creeks and bayous in Harris County. You're sitting in a watershed now. For example, if you live in the Brays Bayou watershed, the rain that falls on your house will eventually end up in Brays Bayou.

When viewing Harris County's watershed map, the individual watershed boundaries may look "jurisdictional," similar to a community's boundaries. However, watershed boundaries are formed by nature and are largely determined by the topography or "lay of the land." Through study, we're able to learn where those boundaries are located. Some of our area watersheds even cross city or county borders, as shown on the map.

Harris County has 22 major watersheds that each drain into 22 major waterways. The watersheds come in all shapes and sizes. Some are large, some small... and each has its own independent flooding issues.

Click on any of the watershed links below (also found in the in the left nav) to view detailed information about each of Harris County's watersheds.

> See also Watersheds & Channels Reference Guide PDF


> Addicks Reservoir
> Armand Bayou
> Barker Reservoir
> Brays Bayou
> Buffalo Bayou
> Carpenters Bayou
> Cedar Bayou
> Clear Creek
> Cypress Creek*
> Galveston Bay
> Greens Bayou
> Hunting Bayou
> Jackson Bayou
> Luce Bayou
> San Jacinto River
> Sims Bayou
> Spring Creek
> Spring Gully & Goose Creek
> Vince Bayou
> White Oak Bayou
> Willow Creek

Harris County Flood Control District
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