Auxiliary Dam No 2
Auxiliary Dam No 2 is an earth dam located in Logan County, Arkansas, built in 1966. It carries a High hazard potential classification and has a fair condition assessment.
About Auxiliary Dam No 2
The primary purpose of Auxiliary Dam No 2 is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Booneville Human Development Center (state). It impounds the Petit Jean River-tr near Magazine.
The dam stands 33 feet tall and stretches 415 feet across, creates a reservoir covering 18 acres, has a maximum storage capacity of 315 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1966, 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. 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 02/28/2019. That was 7 years ago, which is on the longer end for a high-hazard structure.
At 33 feet, this dam is taller than 78% 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 Arkansas 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 | Arkansas |
| County | Logan |
| Nearest City | Magazine |
| River/Stream | Petit Jean River-tr |
| Coordinates | 35.09184, -93.91807 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 415 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 315 acre-ft |
| Max Storage | 315 acre-ft |
| Normal Storage | 168 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 970 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Booneville Human Development Center |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 02/28/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | AR00894 |
| Federal ID | AR00894 |
| More Info | State Dam Safety Program |