NEW WATERSTONE LAKE DAM - OH02895-3535
Dam Name: NEW WATERSTONE LAKE DAM
State: OH
Downstream Hazard Potential: L
Incident Type: Non-Failure
Incident Date: 05/23/2022
Incident Driver: Deterioration or Poor Condition
Incident Mechanism 1: Spillway Riser Failure
Incident Mechanism 2Sinkhole
Incident Mechanism 3
Incident IDOH02895-3535
Incident DescriptionCMP principal spillway riser failed at the bottom of the riser. This developed into a sinkhole and erosion of the upstream slope so that the hole was in direct connect with the lake. Lake completely drained through large hole in the riser.
Named Hydrologic Event
EAP Enacted (Y/N) due to IncidentNo
Fatalities (Number)
Number of People Evacuated0
Number of Habitable Structures Evacuated0
Number of Habitable Structures Flooded0
Other Infrastructure ImpactsNone
Economic Damages (in $)
Response
Volume released at failure (ac-ft)
Additional Remarks or UpdatesThe owner called the dam safety office after most of the damage to the dam had already occurred and most of the water had drained through the hole in the spillway.
Owner TypeP
Dam TypeRE
Primary Purpose(s)R
EAPN
Dam Height19 ft
Max Storage (ac-ft)83.10
Surface Area (acres)4.00
Year Completed1997
NID NumberOH02895
River NameTRIBUTARY TO POLK RUN
Latitude39.2917
Longitude-84.3036
Year Modified
Regulatory Agency(ies)DEPARTMENT OF NATURAL RESOURCES
Incident Time
Incident Duration1 day
Incident Report ProducedYes
Information SourcesOH Dam Safety
