Flooded Roadway Warning System
Current Closures

For Saturday, March 25, 2023, 12:37, there are FRWS closures.
Bexar, 6000 St. under RR
Dowdy Ferry @ Middlefield
Frost, Oakdale, Farragut @ Oakland Channel
Hatcher, 4700
Illinois @ Linfield
Pemberton Hill @ Sarah Lee
Ravenview, 11900
Sargent @ Southerland
Second Ave. @ Dixon
Second Ave. Low Road
Simpson Stuart @ Five Mile Creek
St. Augustine @ Lake June
Umphress @ Hillburn
5000 Lawnview
Simpson Stuart @ I-45
Beckley, 1200 S.
Louisiana, 200 W.
Polk @ Pentagon Pkwy
California Crossing @ Luna
Goodnight @ Walnut Hill
Inwood, 9800 @ Park
Luna @ Y
Tantor @ X
Wildwood @ California Crossing
Abrams, 4600 under RR
Easton, 800
Ferguson, 11500
Goforth @ Lanshire
Merriman Pkwy, 7400
West Lawther @ Northwest Hwy
Peavy @ Dixon Branch
Skillman, 4400 under RR
White Rock Trail, 9200
Lake Highlands, 9500
Park Central @ LBJ
Farmers Market @ Pearl
Farmers Market under Central
Good Latimer under Pacific
Hi Line under RR
Ervay, 2300 S. under RR
Harwood, 2300 S. under RR
Lamar, 2400 S. under RR

On April 25, 2000 the City of Dallas commissioned the Flooded Roadway Warning System with a press conference hosted by councilperson Barbara Mallory Caraway.

Central Business District

Press Conferance April 25, 2000

From left to right:
Steve White, Division Manager of Street Services
Barbara Mallory Caraway, Councilperson
Ron Shindoll, District Manager of the Flood Control District
Jim Wood, Director of Street Services

Click for full size inage Click for full size inage

The Flooded Roadway Warning System is made up of three components:

The sensor monitors the elevation of a nearby stream and reports every twenty minutes to the central computer.

When the flood water reaches the edge of the roadway, a float switch tells the sensor to signal the sign to change to the warning text and turn on the flashing lights. The sign sends a message back to the sensor confirming that everything is working properly. The sensor radios all this information back to the central computer. Pages are sent to staff and messages are printed out at the appropriate Street Services district alerting them of the need to place barricades at this location as soon as possible.

The signs and sensors are battery powered and recharged with solar cells. All communication between the sensors and signs and sensors and the central computer are by radio.

The sensors normally controls the signs without intervention from the central computer. However, the central computer can issue commands to turn on the signs and lights.

The signs include changeable text messages and red flashing lights. In the non-alarm state, the lights are off and the sign shows “High Water When Flashing”. In alarm state, the lights alternate flashing and the sign changes to “Do Not Enter High Water”. The signs and lights are equipped with sensors to detect the status.


FRWS Pictures