Trenton Town Hall - 1861 posted This photo of the building of the CPR bridge is from around 1913. The bridge opened in 1914. Still existing today, it is 1600' long and stands 70' above the Trent River.
The reason for saving this picture is the construction scene. The URL on their page indicates it is Trenton in CA. But I could not find a Trent River there and CPR did not make sense in CA. So then I did a search for "Trent River," and Google found one in Ontario. CPR does make sense there. After tracing the river from Rice Lake to the mouth, I found it: