Blue Mountain Dam
Blue Mountain Dam is an earth dam located in Yell County, Arkansas, built in 1947. It carries a High hazard potential classification.
About Blue Mountain Dam
The primary purpose of Blue Mountain 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 Usace - Little Rock District (federal). It impounds the Petit Jean near Danville.
The dam stands 115 feet tall and stretches 2,800 feet across, creates a reservoir covering 2,910 acres, has a maximum storage capacity of 258,000 acre-feet, and collects water from a drainage area of 488 square miles. Completed in 1947, the structure is well-established, with more than 75 years of service.
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 12/09/2025.
At 115 feet, this dam is taller than 98% of all dams in the United States.
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 | Yell |
| Nearest City | Danville |
| River/Stream | Petit Jean |
| Coordinates | 35.10425, -93.64915 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 115 ft |
| Dam Height | 115 ft |
| Dam Length | 2,800 ft |
| Year Completed | 1947 (79 years old) |
Storage & Hydraulics
| NID Storage | 258,000 acre-ft |
| Max Storage | 258,000 acre-ft |
| Normal Storage | 25,000 acre-ft |
| Surface Area | 2,910 acres |
| Drainage Area | 488 sq mi |
| Max Discharge | 76,300 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | USACE - Little Rock District |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 12/09/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | AR00157 |
| Federal ID | AR00157 |
| More Info | State Dam Safety Program |