Walling Subwatershed Sta 99+70 #1
Walling Subwatershed Sta 99+70 #1 is an earth dam located in Woodbury County, Iowa, built in 1953. It carries a Low hazard potential classification.
About Walling Subwatershed Sta 99+70 #1
Walling Subwatershed Sta 99+70 #1 is a dam in Woodbury, Iowa. The dam is owned by Woodbury County Swcd (local government). It impounds the Tr-little Sioux River near Oto.
The dam stands 40 feet tall and stretches 300 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 59 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1953, 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 40 feet, this dam is taller than 87% 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 | Oto |
| River/Stream | Tr-little Sioux River |
| Coordinates | 42.33020, -95.87000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 300 ft |
| Year Completed | 1953 (73 years old) |
Storage & Hydraulics
| NID Storage | 59 acre-ft |
| Max Storage | 59 acre-ft |
| Normal Storage | 24 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Woodbury County SWCD |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01805 |
| Federal ID | IA01805 |
| More Info | State Dam Safety Program |