Oak Grove Park Dam is an earth dam located in Sioux County, Iowa, built in 1977. It carries a Low hazard potential classification.
Dam profile
NID height · 26 ft26 ft tall and 255 ft long, taller than 55% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Oak Grove Park Dam
The primary purpose of Oak Grove Park Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Sioux County Conservation Board (local government). It impounds the Tr-big Sioux River near Hawarden.
The dam stands 26 feet tall and stretches 255 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 65 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1977, the structure is 49 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.
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Location
| State | Iowa |
| County | Sioux |
| Nearest City | Hawarden |
| River/Stream | Tr-big Sioux River |
| Coordinates | 43.05750, -96.47680 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 255 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 65 acre-ft |
| Max Storage | 65 acre-ft |
| Normal Storage | 37 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Sioux County Conservation Board |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01637 |
| Federal ID | IA01637 |
| More Info | State Dam Safety Program |