Rockville is a gravity dam located in Manitowoc County, Wisconsin, built in 1913. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 14 ft14 ft tall and 130 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Rockville
The primary purpose of Rockville 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 Rockville Mill Pond Management District (local government). It impounds the Sheboygan near Rockville.
The dam stands 14 feet tall and stretches 130 feet across, creates a reservoir covering 137 acres, has a maximum storage capacity of 730 acre-feet, and collects water from a drainage area of 153 square miles. Completed in 1913, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 10/04/2013. That was over 13 years ago.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wisconsin |
| County | Manitowoc |
| Nearest City | Rockville |
| River/Stream | Sheboygan |
| Coordinates | 43.92024, -87.99837 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 130 ft |
| Year Completed | 1913 (113 years old) |
Storage & Hydraulics
| NID Storage | 730 acre-ft |
| Max Storage | 730 acre-ft |
| Normal Storage | 320 acre-ft |
| Surface Area | 137 acres |
| Drainage Area | 153 sq mi |
| Max Discharge | 1,130 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Rockville Mill Pond Management District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 10/04/2013 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00152 |
| Federal ID | WI00152 |
| More Info | State Dam Safety Program |