Brazos River Floodgates

BRAZORIA COUNTY, Texas – The U.S. Army Corps of Engineers Galveston District prepares to reinstall the East Brazos River Floodgates following a yearlong refurbishing process in which each of the 80-ton sector gates along with an additional 40 tons of organic material were removed for repair and cleaning to restore and enhance their structural integrity and operation. 


Floodgate Dimensions: 750 feet long by 75 feet wide; maximum to length is 1,180 feet and maximum tow width is 55 feet.

Note: When head differential in either East or West gates are between 0.7 feet and 1.8 feet, installation will go on RESTRICTIONS.

When head differential exceeds 1.8 feet, that gate will be CLOSED FOR NAVIGATION. 


Facility Directions




    Notice To Navigation Interest.   Brazos Flood Gate is now operating under normal conditions so long as weather permits.   *Note J&S maintenance crew will continue work starting Monday the 16th April, 2018.  Brazos Flood Gate will be close from 0700hrs until 1500hrs unless otherwise  announced,  Monday-Thursday.  Any questions please contact Lockmaster Bob Page @ (979) 482-7320.




Closure Notices

 Closures are imminent. Please refer to the following Notice to Navigation for more information or call 979-233-1251 or 979-402-2888.

Commercial Vessel Check-in Procedures

West bound vessels check in at Bryan Beach bridge - East bound vessels check in at Jones Lake. West bound vessels use north bank moorings when tripping barges. East bound vessels use south bank moorings when tripping barges.....

Facility Information

Brazos River Flood Gates Elevation and Velocity Data

Brazos River Lock Status

To contact the East Gate Operator call: 

979-233-1251 or 979-402-2888

Gate Differentials:  

East Gate                  West Gate
River Side   3.4    River Side  3.4
Canal Side  3.4    Canal Side 3.0
Differential   .0     Differential  .4

*MLT= Mean high Tide

Last Update July 11, 2018 @ 1000

Galveston District Lockmaster Brazos River Floodgates

Mailing Address:
Brazos River Floodgates
4335 East Flood Gate Road
Freeport, Texas  77542

Phone: 979-233-3146
Fax: 979-233-5632

Office Hours:
7:30 a.m.- 5 p.m. Monday - Thursday
7:30 a.m.-4 p.m. Friday
After hours: 979-233-1251

Meet Lockmaster Robert Page

Ensuring operational readiness and compliance of the Brazos River Floodgates for nearly 2,500 commercial and recreational vessels each month is no easy task, but it’s one that a handful of talented U.S. Army Corps of Engineers and a dedicated lockmaster make look easy. Read full story.

Floodgate Dimensions

750 feet long by 75 feet wide
Maximum tow length = 1,180 feet
Maximum tow width = 55 feet