Dam 21
Dam 21 is an earth dam located in Coryell County, Texas. It carries a Low hazard potential classification and has a fair condition assessment.
About Dam 21
The primary purpose of Dam 21 is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Fort Cavazos (federal). It impounds the Coryell near Killeen.
The dam stands 22 feet tall and stretches 1,110 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 272 acre-feet, and collects water from a drainage area of 1 square miles.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 09/14/2020.
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Location
| State | Texas |
| County | Coryell |
| Nearest City | Killeen |
| River/Stream | Coryell |
| Coordinates | 31.19854, -97.82676 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 1,110 ft |
Storage & Hydraulics
| NID Storage | 272 acre-ft |
| Max Storage | 272 acre-ft |
| Normal Storage | 11 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,542 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Debris Control |
| Owner | Fort Cavazos |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 09/14/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX07583 |
| Federal ID | TX07583 |
| More Info | State Dam Safety Program |