Warren Lake Dam is an earth dam located in Harris County, Texas, built in 1961. It carries a Significant hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 19 ft19 ft tall and 2,009 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Warren Lake Dam
The primary purpose of Warren Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Coastal Prairie Conservancy;warren Group Inc (private). It impounds the Rock Hollow Creek.
The dam stands 19 feet tall and stretches 2,009 feet across, creates a reservoir covering 208 acres, has a maximum storage capacity of 2,000 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1961, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 10/05/2023.
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Location
| State | Texas |
| County | Harris |
| River/Stream | Rock Hollow Creek |
| Coordinates | 29.97666, -95.84249 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 2,009 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 2,000 acre-ft |
| Max Storage | 2,000 acre-ft |
| Normal Storage | 987 acre-ft |
| Surface Area | 208 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 2 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Coastal Prairie Conservancy;warren Group Inc |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 10/05/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX03398 |
| Federal ID | TX03398 |
| More Info | State Dam Safety Program |