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Interactive Map: Flood-prone roadways, freeways, and underpasses in Houston area

With flooding on Houston streets almost inevitable, this map shows you those flood-prone areas.

HOUSTON — Houston emergency management officials urge motorists to avoid flood-prone roadways during prolonged or intense rainfall.

All underpasses and low-lying areas are potentially dangerous during periods of heavy and/or prolonged rainfall.

If you see a barricade in your path, do not drive around it or move it. 

THE LATEST | Flash Flood Watch in effect: Heavy rain expected

When the forecast calls for 2 to 3 inches of rain per hour, you should expect to see street flooding. 

There are more than 100 locations of flood-prone roadways.

The Houston Emergency Operations Center has a map here to show those flood-prone areas.

These areas are where TxDOT and Houston Public Works pre-stage their barricades before a big flood event because they know those spots are dangerous.

Some of the areas have flood gauges on the roads to give drivers a heads up, but others have no warning at all so it's good to know what's around you if you have to head out.

Can't see the map, click here. 

During the actual flood, Transtar will be updating their maps and closures in real time.

The map only covers the City of Houston. 

We reached out to other counties, who say their flood areas depend most on where the rain falls. They offer websites that tell those in real time during a storm: 

Galveston County:  https://gcoem.org/  or visit their Facebook: https://www.facebook.com/GalvestonCountytx/ 

Montgomery County: http://moco.maps.arcgis.com/apps/webappviewer/index.html?id=6f553b1811df417bb304707162877ef0

Fort Bend County: https://fbcoem.org/closures-and-outages/road-closures/?locale=en-us

Interactive map: https://www.google.com/maps/d/u/0/viewer?mid=1iVZFzzl9gPwhlXn0538ch35tZts0kovL&ll=29.324704599999993%2C-95.61702589999999&z=17 

Drive Texas also shows flooded areas: https://drivetexas.org/#/10/29.7019/-95.5371?future=false

 Waze has a live map as well with closures: https://www.waze.com/livemap

READ: What you need to know before driving through floodwaters

SCHOOL CLOSURES: List of school closures for Thursday

WEATHER ALERTS: View weather alerts/watches/warnings

RADAR: Track rain & storms across Texas

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