Rockville

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.

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 12 years ago.

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Low HazardFair ConditionEmergency Action Plan: Yes

Location

StateWisconsin
CountyManitowoc
Nearest CityRockville
River/StreamSheboygan
Coordinates43.92024, -87.99837

Physical Characteristics

Dam TypeGravity
NID Height14 ft
Dam Height14 ft
Dam Length130 ft
Year Completed1913 (113 years old)

Storage & Hydraulics

NID Storage730 acre-ft
Max Storage730 acre-ft
Normal Storage320 acre-ft
Surface Area137 acres
Drainage Area153 sq mi
Max Discharge1,130 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeHydroelectric
OwnerROCKVILLE MILL POND MANAGEMENT DISTRICT
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection10/04/2013
Emergency Action PlanYes

Identifiers

NID IDWI00152
Federal IDWI00152
More InfoState Dam Safety Program

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