Dierks Lake Dam
Dierks Lake Dam is a rockfill dam located in Howard County, Arkansas, built in 1956. It carries a Low hazard potential classification and has a poor condition assessment.
About Dierks Lake Dam
The primary purpose of Dierks Lake Dam 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 Weyerhaeuser Company (private). It impounds the Long Hollow Creek near Dierks.
The dam stands 48 feet tall and stretches 1,350 feet across, creates a reservoir covering 54 acres, has a maximum storage capacity of 1,385 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1956, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 02/09/2026.
At 48 feet, this dam is taller than 92% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Arkansas |
| County | Howard |
| Nearest City | Dierks |
| River/Stream | Long Hollow Creek |
| Coordinates | 34.12667, -93.99833 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 48 ft |
| Dam Height | 46 ft |
| Dam Length | 1,350 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 1,385 acre-ft |
| Max Storage | 1,385 acre-ft |
| Normal Storage | 1,100 acre-ft |
| Surface Area | 54 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 2,701 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Weyerhaeuser Company |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 02/09/2026 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AR00911 |
| Federal ID | AR00911 |
| More Info | State Dam Safety Program |