Timberlake Dam B
Timberlake Dam B is an earth dam located in Wake County, North Carolina, built in 1966. It carries a Significant hazard potential classification and has a fair condition assessment.
About Timberlake Dam B
The primary purpose of Timberlake Dam B is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by James L Wetmore (private). It impounds the Marsh Creek near Raleigh.
The dam stands 15 feet tall, and has a maximum storage capacity of 36 acre-feet. Completed in 1966, 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 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 11/08/2022.
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Location
| State | North Carolina |
| County | Wake |
| Nearest City | Raleigh |
| River/Stream | Marsh Creek |
| Coordinates | 35.80830, -78.58720 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 36 acre-ft |
| Max Storage | 36 acre-ft |
Ownership & Safety
| Purpose | Recreation |
| Owner | James L Wetmore |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 11/08/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NC04486 |
| Federal ID | NC04486 |
| More Info | State Dam Safety Program |