SFPUC 2001 Alameda Watershed Management Plan

III. ENVIRONMENTAL SETTING AND IMPACTSH. CULTURAL RESOURCESTABLE III.H-1 (Continued)KNOWN CULTURAL RESOURCES OF THE ALAMEDA WATERSHEDNo. Type a Name Date Status b Comment Sensitivity c40 Hist. Arch. Hollenbeck Family Homestead Site circa 1878 one structure on 160 acres High41 Hist. Struct. Calaveras Dam Spillway 1925 Low42 Hist. Struct. Blue Stone House Moderate43 Hist. Struct. Calaveras Dam Bridge over Spillway 1925 Moderate44 Hist. Struct. Calaveras Reservoir Adit Tower 1925 Moderate45 Hist. Struct. Calaveras Dam 1925 Moderate46 Hist. Struct. Calaveras Filtration Plant Complex circa 1900 includes chlorination building and aerator Moderatebuilding47 Hist. Struct. Calaveras Dam Watershed Keeper’s Complex circa 1900 includes barn Moderate48 Hist. Struct. Alameda Diversion Tunnel circa 1925 Low49 Hist. Struct. Alameda Diversion Tunnel Dam circa 1925 Low50 Hist. Arch. Homestead-era Site circa 1876 one structure on 80 acres High51 Hist. Arch. D. and T. Williams Property Homestead Site circa 1876 one structure on 160 acres High52 Hist. Arch. Louie Frenk Homestead Site late 1800s High53 Hist. Arch. School and two-structure complex late 1800s High54 Hist. Arch. Homestead-era Site one structure High55 Hist. Struct. Parks Family Homestead Site circa 1860 Moderate56 Hist. Arch. R. Charles McLaughlin Property Homestead Site circa 1876 one structure on 640 acres High57 Prehist. Unconfirmed prehistoric archaeological siteHighArch.58 Hist. Arch. Homestead-era Site circa 1876 one structure on 160 acres Higha Type Nat. Reg. National Register of Historic Places (listed or eligible) Prehist. Arch. Prehistoric Archaeological SitesHist. Struct. Historic Structures and Features (includes stage roads) Prehist/Ethn. Prehistoric/Ethnohistoric Sites (includes Indian Villages)Hist. Arch. Historic Archaeological Sitesb Status 1 National Register of Historic Places 3 California Inventory of Historic Resources2 California Historical Landmarks 4 Historic Civil Engineering Landmarksc SensitivityBased on importance of site, age of site, and current condition.SOURCE: Environmental Science Associates, 1994NOP 96.223E: Alameda Watershed Management Plan III.H-6 ESA / 930385January 2001