Highlands Reservoir Dam, located in Harris County, Texas, was completed in 1944 and serves as a crucial water supply source for the city of McNair.
Wind
Humidity
The dam stands at a height of 20 feet and has a hydraulic height of 18.3 feet, with a total length of 34,700 feet. It is primarily composed of earth and stone, resting on rock and soil foundations, making it a sturdy structure for water storage and management.
With a normal storage capacity of 1,903 acre-feet and a maximum storage of 5,885 acre-feet, Highlands Reservoir Dam plays a vital role in regulating water flow and providing flood protection in the region. The dam features an uncontrolled spillway with a width of 28 feet and multiple outlet gates for controlled water release. Inspected regularly and found to be in satisfactory condition, the dam is regulated by the Texas Commission on Environmental Quality (TCEQ) and has undergone hydraulic and structural modifications in 2013 to enhance its performance.
The risk assessment for Highlands Reservoir Dam categorizes it as having a moderate risk level, with a hazard potential that is not available. Despite this, the dam has implemented risk management measures to ensure the safety of the surrounding community and maintain its operational effectiveness. With its critical role in water supply and flood control, Highlands Reservoir Dam stands as a significant infrastructure asset in the region, contributing to sustainable water resource management and climate resilience efforts.
Years Modified |
2013 - Hydraulic, 2013 - Structural |
Year Completed |
1944 |
Dam Length |
34700 |
Dam Height |
20 |
River Or Stream |
OFF CH-GOOSE CREEK |
Primary Dam Type |
Earth |
Surface Area |
805 |
Hydraulic Height |
18.3 |
Drainage Area |
1.26 |
Nid Storage |
5885 |
Structural Height |
20 |
Outlet Gates |
Other Controlled - 7, Uncontrolled - 1 |
Hazard Potential |
Not Available |
Foundations |
Rock, Soil |
Nid Height |
20 |
Goose Ck At Baytown
|
6cfs |
Cedar Bayou Nr Crosby
|
13cfs |
Greens Bayou At Ley Rd
|
2120cfs |
Vince Bayou At Pasadena
|
1cfs |
Garners Bayou Nr Humble
|
58cfs |
Hunting Bayou At Ih 610
|
22cfs |