Decker Dry Detention Dam
Decker Dry Detention Dam is an earth dam located in Montgomery County, Texas, built in 2001. It carries a High hazard potential classification and has a fair condition assessment.
About Decker Dry Detention Dam
The primary purpose of Decker Dry Detention Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Schwartz Page & Harding Llp;wood Trace Mud 1 (local government). It impounds the Tr Of Decker Branch near The Woodlands.
The dam stands 16 feet tall and stretches 1,700 feet across, creates a reservoir covering 26 acres, has a maximum storage capacity of 163 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 2001, the structure is relatively new.
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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 10/03/2023.
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 | Montgomery |
| Nearest City | The Woodlands |
| River/Stream | Tr Of Decker Branch |
| Coordinates | 30.14895, -95.67264 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 1,700 ft |
| Year Completed | 2001 (25 years old) |
Storage & Hydraulics
| NID Storage | 163 acre-ft |
| Max Storage | 163 acre-ft |
| Surface Area | 26 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 5,690 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | SCHWARTZ PAGE & HARDING LLP;WOOD TRACE MUD 1 |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 10/03/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX07489 |
| Federal ID | TX07489 |
| More Info | State Dam Safety Program |