Special routes of U.S. Route 90
U.S. Highway 90 Alternate is an alternate route of U.S. Highway 90 in Jacksonville, Florida, United States. It runs from the split of Beach Boulevard and Atlantic Boulevard east along Atlantic Boulevard (State Road 10; US 90 and SR 212 use Beach Boulevard) to Southside Boulevard (State Road 115), where it turns south to end at Beach Boulevard (US 90/SR 212).
U.S. Route 90 in Florida
After the intersection with CR 369B in Oak Grove it passes by the Joshua Davis House and then curves southeast where it enters Mount Pleasant as it intersects CR 369. The CSX Tallahassee Subdivision which began in Chatahoochee and carried the Amtrak Sunset Limited approaches US 90 south of there in Saint John running entirely along the southwest side. The tracks follow US 90 even as it enters the City of Gretna where the road is named Main Street and the closest two intersections resembling major ones are with CR 268, and later CR 270A. Southeast of Gretna, the road enters Douglas City as it turns back east again as it joins a concurrency with State Road 12, which also contains a hidden concurrency with State Road 65, although Google Maps refers to it as County Road 65. The tracks begin to move away from US 90/SRs 12/65, but almost comes back just before the intersection with CR 274 before entering Quincy where the multiplex becomes West Jefferson Street. Within the city the roat encounters an at-grade railroad crossing with a spur of the Tallahassee Subdivision. This spur runs next to the beginning of the concurrency with State Road 267 and CR 268 once again. The concurrency with SR 267 may have been in the process of being eliminated though, as a four-lane stub extends a block north of US 90. US 90/SRs 12/65/267/CR 268 enter the Quincy Historic District at Stewart Street. Four blocks later at Adams Street, SR 267 leave US 90 to the north, and CR 268 turns in the opposite direction. Between there it runs in front of the Gadsden County Courthouse and a block later at Madison Street, SRs 12/65 turns north. From there, US 90 becomes East Jefferson Street.