It is a spur of SR 75 and connects the rest of the state highway system with Naval Air Station North Island.

The road is part of a link connecting to the metropolitan area of San Diego via SR 75 and the Coronado Bay Bridge.

Attempts to build first a highway, and later a tunnel, to allow base traffic to bypass the Coronado city streets, were rejected by voters in 1974 and 2010, respectively.

[12] In April, plans were under way to repave Fourth and Third Streets and add signals at the Orange Avenue intersections.

[16] Coronado Mayor Rolland McNelly opposed the proposal in early November 1974 as it would require approval from over 30 government agencies and would force the city to continue with it, although some declared the road "impossible to build.

[20] In April 2006, the Navy commenced construction on an entrance to the Naval Air Station from the intersection of Third Street and Alameda Boulevard.

Before then, traffic entering the base had to continue southwest on Alameda Boulevard, making a left on Fourth Street.

[22] The city endorsed a proposed study in 2004 to determine possible alternatives to resolve the traffic issues, which included keeping the status quo.

[24] This concluded ten years of studies and proposals by the city of Coronado to find a way to reduce traffic to the naval station during rush hour.