Scope and Content Correspondence, receipts, and bids re construction of Aliso St. ViaductBlueprint "Aliso Street Viaduct, WO 40251 UPRR Crossing"Correspondence and receipts re construction of Aliso St. Viaduct Blueprint "Proposed relocation main tracks - Aliso St. to permit construction of viaduct abutment" (undated)Correspondence re construction of Aliso St. ViaductBlueprint "Union Pacific RR Co, So Central District - 1st subdivision, Aliso St. Los...