Arsenal Power
Arsenal Power is a concrete dam located in Rock Island County, Illinois, built in 1878. It carries a Low hazard potential classification and has a poor condition assessment.
About Arsenal Power
The primary purpose of Arsenal Power is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Rock Island Arsenal (federal). It impounds the Mississippi River near Rock Island.
The dam stands 29 feet tall and stretches 728 feet across, and has a maximum storage capacity of 30,000 acre-feet. Completed in 1878, the structure is over a century 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 08/29/2020.
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Location
| State | Illinois |
| County | Rock Island |
| Nearest City | Rock Island |
| River/Stream | Mississippi River |
| Coordinates | 41.51500, -90.54000 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 29 ft |
| Dam Height | 26 ft |
| Dam Length | 728 ft |
| Year Completed | 1878 (148 years old) |
Storage & Hydraulics
| NID Storage | 30,000 acre-ft |
| Max Storage | 30,000 acre-ft |
| Normal Storage | 30,000 acre-ft |
| Max Discharge | 312,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Rock Island Arsenal |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 08/29/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL00798 |
| Federal ID | IL00798 |
| More Info | State Dam Safety Program |