Lake Of The Hills Dam
Lake Of The Hills Dam is an earth dam located in Scott County, Iowa, built in 1972. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Lake Of The Hills Dam
Lake Of The Hills Dam is a dam in Scott, Iowa. The dam is owned by Iowa Department Of Transportation,scott County Conservation (state). It impounds the Blackhawk Creek near Davenport.
The dam stands 48 feet tall and stretches 2,400 feet across, creates a reservoir covering 657 acres, has a maximum storage capacity of 1,950 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1972, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 07/17/2023.
At 48 feet, this dam is taller than 92% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Iowa dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Scott |
| Nearest City | Davenport |
| River/Stream | Blackhawk Creek |
| Coordinates | 41.52450, -90.67460 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 48 ft |
| Dam Height | 48 ft |
| Dam Length | 2,400 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 1,950 acre-ft |
| Max Storage | 1,950 acre-ft |
| Normal Storage | 613 acre-ft |
| Surface Area | 657 acres |
| Drainage Area | 2 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Iowa Department of Transportation,SCOTT COUNTY CONSERVATION |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/17/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IA00978 |
| Federal ID | IA00978 |
| More Info | State Dam Safety Program |