Upper Beaver Subwatershed Site 20-1
Upper Beaver Subwatershed Site 20-1 is an earth dam located in Monona County, Iowa, built in 1967. It carries a Low hazard potential classification.
About Upper Beaver Subwatershed Site 20-1
The primary purpose of Upper Beaver Subwatershed Site 20-1 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 Monona County Swcd (local government). It impounds the Tr-beaver Creek near Little Sioux.
The dam stands 51 feet tall and stretches 297 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 68 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1967, 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 51 feet, this dam is taller than 93% 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 | Monona |
| Nearest City | Little Sioux |
| River/Stream | Tr-beaver Creek |
| Coordinates | 42.06210, -95.84930 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 51 ft |
| Dam Height | 51 ft |
| Dam Length | 297 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 68 acre-ft |
| Max Storage | 68 acre-ft |
| Normal Storage | 51 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Monona County SWCD |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00716 |
| Federal ID | IA00716 |
| More Info | State Dam Safety Program |