Facebook North Detention Dam is an earth dam located in Polk County, Iowa, built in 2020. It carries a Low hazard potential classification.
Dam profile
NID height · 11 ft11 ft tall and 910 ft long. 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 Facebook North Detention Dam
The primary purpose of Facebook North Detention Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Siculus, Inc. C/o Facebook, Inc. (private). It impounds the Tributary to Muchikinock Creek near Altoona.
The dam stands 11 feet tall and stretches 910 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 51 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2020, the structure is relatively new.
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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Polk |
| Nearest City | Altoona |
| River/Stream | Tributary to Muchikinock Creek |
| Coordinates | 41.66880, -93.50940 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 910 ft |
| Year Completed | 2020 (6 years old) |
Storage & Hydraulics
| NID Storage | 51 acre-ft |
| Max Storage | 51 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Siculus, Inc. C/o Facebook, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04353 |
| Federal ID | IA04353 |
| More Info | State Dam Safety Program |