There are hereby created in the city the streets and parts of streets hereinafter described and designated as through streets for the purpose of this chapter, and when signs are erected giving notice thereof to drivers of vehicles, they shall yield the right of way at every intersection before entering any of the following:
A. Birch Street prior to entering Lead Street.
B. Birch Street prior to entering Copper Street. (Ord. 331, 8-7-1961)
C. Birch Street prior to entering Nickel Street. (Ord. 260, 12-4-1956)
When yield signs are erected as herein provided for, at or near the entrance to any intersection herein designated, every driver of a vehicle shall yield the right of way at such street or clearly marked yield sign before entering the intersection, except when directed to proceed by a police officer or traffic-control signal. (Ord. 331, 8-7-1961)