Lower Little Black G-2 Dam
Lower Little Black G-2 Dam is an earth dam located in Ripley County, Missouri, built in 1999. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Lower Little Black G-2 Dam
Lower Little Black G-2 Dam is a dam in Ripley, Missouri. The dam is private-owned. It impounds the Harris Creek near Doniphan.
The dam stands 55 feet tall and stretches 750 feet across, creates a reservoir covering 80 acres, has a maximum storage capacity of 7,441 acre-feet, and collects water from a drainage area of 14 square miles. Completed in 1999, the structure is 27 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 09/01/2022.
At 55 feet, this dam is taller than 94% 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 Missouri 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 | Missouri |
| County | Ripley |
| Nearest City | Doniphan |
| River/Stream | Harris Creek |
| Coordinates | 36.56992, -90.73386 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 55 ft |
| Dam Height | 55 ft |
| Dam Length | 750 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 7,441 acre-ft |
| Max Storage | 7,441 acre-ft |
| Normal Storage | 706 acre-ft |
| Surface Area | 80 acres |
| Drainage Area | 14 sq mi |
| Max Discharge | 17,200 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/01/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MO31995 |
| Federal ID | MO31995 |
| More Info | State Dam Safety Program |