Question: When was the route that U.S. Route 123 is a spur of originally made?
Sentence (from "New Jersey Route 73"): It runs 34.64 mi as an outer bypass of the Camden area from an intersection with U.S. Route 322 in Folsom, Atlantic County to the Tacony-Palmyra Bridge in Palmyra, Burlington County, where it continues into Philadelphia, Pennsylvania as Pennsylvania Route 73.
Relevant evidence: No