Atlantic Boulevard
... that Jacksonville's Atlantic Boulevard, which is considered to have been the beginning of Florida's highway system, was just 18 ft (5.5 m) wide when first built?
... that <a href="./Jacksonville,_Florida" id="mwDwI" rel="mw:WikiLink" title="Jacksonville, Florida">Jacksonville</a>'s <b id="mwDwM"><a href="./Atlantic_Boulevard_(Jacksonville)" id="mwDwQ" rel="mw:WikiLink" title="Atlantic Boulevard (Jacksonville)">Atlantic Boulevard</a></b>, which is considered to have been the beginning of <a href="./Florida" id="mwDwU" rel="mw:WikiLink" title="Florida">Florida</a>'s highway system, was just 18<span id="mwDwY" typeof="mw:Entity"> </span>ft (5.5<span id="mwDwc" typeof="mw:Entity"> </span>m) wide when first built?