Diamond Lake Dam
Diamond Lake Dam is an earth dam located in Dickinson County, Iowa, built in 1957. It carries a Low hazard potential classification.
About Diamond Lake Dam
The primary purpose of Diamond Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Iowa Department Of Natural Resources (state). It impounds the Tr- Little Sioux River near Spencer.
The dam stands 8 feet tall and stretches 400 feet across, creates a reservoir covering 129 acres, has a maximum storage capacity of 1,800 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1957, 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Dickinson |
| Nearest City | Spencer |
| River/Stream | Tr- Little Sioux River |
| Coordinates | 43.47780, -95.19530 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 400 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 1,800 acre-ft |
| Max Storage | 1,800 acre-ft |
| Normal Storage | 750 acre-ft |
| Surface Area | 129 acres |
| Drainage Area | 2 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Iowa Department of Natural Resources |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA03164 |
| Federal ID | IA03164 |
| More Info | State Dam Safety Program |