AKA: Key Route, Mole Railway Substation, Oakland, CA; State of California, Department of Transportation (Caltrans), Substation, Oakland, CA

Structure Type: built works - infrastructure - transportation structures

Designers: Brown, Arthur, Jr., and Associates, Architect (firm); Donovan, John J., Architect (firm); Pflueger, Timothy L. Architect (firm); Arthur Brown Jr. (architect); John Joseph Donovan Sr. (architect); Timothy Ludwig Pflueger (architect)

Dates: constructed 1937