Scope and Content Legal documents re bridges at Long Beach Harbor, including:Typescript protest to Secretary of War by SPLA&SLRR about decision to require removal of SPLA&SLRR "trestle bridge over the mouth of the Old San Gabriel (Los Angeles) river, and of the dike and dam built to protect said bridge" (1906)Supplemental agreement between LA&SLRR and Southern California Edison Company, re operation and use of draw bridge across San Gabriel River at the Entrance to Long...