The Upper East Fk Laterals WS SCS Site 5a Dam, also known as Rainbow Lake, is a prominent earth dam located in Rockwall, Texas.
Wind
Humidity
Constructed in 1955 by the USDA NRCS, this dam serves multiple purposes including flood risk reduction, fire protection, stock management, and recreation. With a height of 39 feet and a length of 1934 feet, this dam has a normal storage capacity of 131 acre-feet and a maximum storage capacity of 890 acre-feet.
Owned by the local government and regulated by the TCEQ, the Upper East Fk Laterals WS SCS Site 5a Dam plays a crucial role in managing water resources in the area. The dam has a fair condition assessment as of April 2021 and is inspected every 5 years to ensure its structural integrity. In the event of an emergency, the dam has slide and uncontrolled gates for water release, with a spillway width of 109 feet.
With its strategic location on the Brockway Branch river, the Upper East Fk Laterals WS SCS Site 5a Dam is a key asset in the region's water management infrastructure. Enthusiasts of water resources and climate will appreciate the role that this dam plays in flood risk reduction and water storage, while also providing opportunities for recreation and fire protection in the area.
Year Completed |
1955 |
Dam Length |
1934 |
Dam Height |
39 |
River Or Stream |
BROCKWAY BRANCH |
Primary Dam Type |
Earth |
Hydraulic Height |
39 |
Drainage Area |
1.33 |
Nid Storage |
890 |
Structural Height |
39 |
Outlet Gates |
Slide (sluice gate) - 1, Uncontrolled - 2 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
39 |