Florida State Road 312
|Maintained by FDOT|
|Length:||3.603 mi (5.798 km)|
|West end:||SR 207 near St. Augustine|
|East end:||SR A1A / CR A1A in St. Augustine|
State Road 312 (SR 312) is a 3.6-mile-long (5.8 km) state highway serving St. Augustine, Florida in the United States. Its western terminus is at SR 207, and its eastern terminus is at SR A1A near St. Augustine Beach.
State Road 312 begins at the intersection between SR 207 and SR 312, where SR 207 continues northeast into central St. Augustine. About 0.4 mile east of the western terminus, SR 312 passes over the Florida East Coast Railway main line via an overpass. A mile from the western terminus, SR 312 intersects US 1, with SR 312 continuing a few blocks east through St. Augustine until a crossing with the Intracoastal Waterway. At the waterway, SR 312 enters St. Augustine city limits, where it terminates at SR A1A.
The entire route is in St. Johns County.
|||0.000||0.000||SR 207 to I-95||Western terminus|
|||0.801||1.289||Old Moultrie Road (CR 5A)|
|||1.009||1.624||US 1 (Ponce de Leon Boulevard / SR 5) – St. Augustine, Bunnell|
|Bridge over Matanzas River (Atlantic Intracoastal Waterway)|
|3.603||5.798||SR A1A – St. Augustine Beach, St. Augustine Amphitheatre||Eastern signed terminus|
|||3.836||6.173||East end of state maintenance|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi