Helvey Park Dam is an earth dam located in Clay County, Missouri, built in 1960. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 36 ft36 ft tall and 800 ft long, taller than 82% 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 Helvey Park Dam
The primary purpose of Helvey Park 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 City of Smithville (local government). It impounds the Tr Wilkerson Creek near Smithville.
The dam stands 36 feet tall and stretches 800 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 203 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1960, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/22/2020.
At 36 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Missouri |
| County | Clay |
| Nearest City | Smithville |
| River/Stream | Tr Wilkerson Creek |
| Coordinates | 39.38292, -94.56766 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 800 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 203 acre-ft |
| Max Storage | 203 acre-ft |
| Normal Storage | 159 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 200 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Smithville |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/22/2020 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MO10584 |
| Federal ID | MO10584 |
| More Info | State Dam Safety Program |