Since Harvey
Completed Levee Contruction
The Steep Bank Creek Erosion Repair is a project consisting of interlocking steel wire baskets filled with rock also known as gabions. The gabion structure is designed to protect against further erosion caused by the water flowing around the sharp turn in Steep Bank Creek.
Gabion Wall Structure
This project added two 8’ x 8’ sluice gates to the Outfall #2 structure located on the western edge of the southern levee system, three 6’ x 5’ sluice gates to the Woods/Acreage estates levee system outfall structure, and five 10’ x 10’ sluice gates to the north pump station outfall structure located in the southwest corner of the north levee system. These gates provide an emergency back-up system to the existing exterior flap gates currently located on these structures.
The Sienna Parks & Levee Improvement District (“SPLID”) will hold a bond election on November 6, 2018. This bond election includes funds for projects intended to improve the levee and drainage systems to better handle future rain events like Hurricane Harvey and natural disasters.
Funds will cover projects to:
- Expand channels and clean out creeks;
- Install additional sluice gates, flap gates and backup gates at pump stations;
- Increase capacity of current pumping stations, construct additional pump stations, and harden these facilities against storm damage;
- Installation of real time flood monitoring system, including water surface gauge panels, internal and external water surface monitoring equipment, rainfall monitoring equipment, and a SCADA monitoring system;
- Improve access to North and South pump stations;
- Harden the external face of the levee along the Brazos River; and
- Stop river erosion from encroaching into the levee
If passed, the bonds will accelerate $139 million in levee system improvements with NO SPLID tax rate increase. If not passed, the projects will take more than a decade to build on a pay as you go basis.
Early voting for the 2018 SPLID Bond Election will be held from October 22, 2018 through November 2, 2018. Election Day is Tuesday, November 6, 2018.
Levee Construction Projects – Ongoing
This will be the second pump station constructed in the southern levee system. Located on Channel 3 on the western edge of the south levee system, this pump station will add an additional 270,000 gpm to the southern levee pumping capacity, thus increasing total pumping capacity in the southern levee system to 530,000 gpm.
The 5’ x 5’ sluice gates located at the northern end of Oyster Creek and Long Point Slough and the 5’ x 5’ flap gate at the southern end of Oyster Creek will provide back-up systems to existing structures during Brazos River high water events.
This project consists of adding three 8’ x 8’ sluice gates to the GCWA levee structure located 900’ west of Sienna Parkway and McKeever Road. These gates will provide the first line of defense during a Brazos River high water event and will be backed up by a three 8’ x 8’ existing aluminum stop log system. Delivery of the gates is expected in April 2020. Construction has not begun.
This project consists of adding five 10’ x 10’ flap gates to the exterior face of the north pump station outfall structure located in the southwestern corner of the northern levee system. These flap gates will provide the first line of defense during a Brazos River high water event and will be backed up by the five 10’ x 10’ sluice gate project that was just completed as the emergency back-up system on this structure.
