Clark Dam is an earth dam located in Woodbury County, Iowa, built in 1971. It carries a Low hazard potential classification.
Dam profile
NID height · 39 ft39 ft tall and 292 ft long, taller than 85% 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 Clark Dam
The primary purpose of Clark Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Glen Clark (private). It impounds the Tr-west Fork Little Sioux near Rolly Springs.
The dam stands 39 feet tall and stretches 292 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 38 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1971, 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.
At 39 feet, this dam is taller than 85% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Woodbury |
| Nearest City | Rolly Springs |
| River/Stream | Tr-west Fork Little Sioux |
| Coordinates | 42.34260, -96.10890 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 292 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 38 acre-ft |
| Max Storage | 38 acre-ft |
| Normal Storage | 26 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Glen Clark |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01179 |
| Federal ID | IA01179 |
| More Info | State Dam Safety Program |