Dam Name : Lyons
NPDP ID : CA00387

NPDP IDCA00387
Dam NameLyons
Other Dam Name 
Year of Completion1930
State ID01061-01-01
Is in NIDYes
Is in OperationYes
Longitude-120.16
Latitude38.1
StateCA
CountyTuolumne
Town SectionS.24,T.3N,R.16E
RiverSouth Fork Stanislaus River
Owner NamePacific Gas And Electric Co.
Owner TypePrivate
Dam TypesConcrete Arch
NID Core 
Crest Length535
Dam NID Height132
Structral Height 
Hydraulic Height 
Dam Volume 
NID Type 
Max Storage Capacity6400
Normal Storage Capacity6230
NID Storage Capacity6400
Surface Area184
Drainage Area 
Primary PurposeHydroelectric
Secondary PurposeFire Proctection, Stock, Or Small Farm Pond
Hazard ClassificationHigh
EAPYes
Is State RegulatedNo
State Regulatory Agency 
Federal Regulatory AgencyDOE FERC