Cement Plant Dam
Cement Plant Dam is an earth dam located in Ellis County, Texas, built in 1961. It carries a High hazard potential classification.
About Cement Plant Dam
Cement Plant Dam is a dam in Ellis, Texas. The dam is owned by Martin Marietta North Texas Cement Llc (private). It impounds the Cottonwood Creek.
The dam stands 38 feet tall and stretches 760 feet across, creates a reservoir covering 38 acres, has a maximum storage capacity of 384 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1961, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 11/29/2023.
At 38 feet, this dam is taller than 85% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Texas dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Texas |
| County | Ellis |
| River/Stream | Cottonwood Creek |
| Coordinates | 32.45625, -97.02515 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 760 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 384 acre-ft |
| Max Storage | 384 acre-ft |
| Normal Storage | 128 acre-ft |
| Surface Area | 38 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 2,456 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | MARTIN MARIETTA NORTH TEXAS CEMENT LLC |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 11/29/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX01313 |
| Federal ID | TX01313 |
| More Info | State Dam Safety Program |