always carries a Florida Department of Transportation (FDOT)-designated state road number, be it signed or unsigned: The entire route is in Jacksonville, Duval County.

crosses Eastern Avenue NE and enters the state of Maryland from DC in Prince George's County.

The route heads northeast along the partially four-lane divided Bladensburg Road passing industrial areas and warehouses on the northwest and the Fort Lincoln Funeral Home and Cemetery on the southeast straddling the southeastern boundary of the town of Cottage City.

leaves the boundary between Colmar Manor and Cottage City as it crosses over the Anacostia River just to the southeast of the confluence between its Northeast and Northwest branches and enters the town of Bladensburg.

Immediately after crossing the river, the route's median for its directional Y intersection with the eastern terminus of MD 450 (Annapolis Road), which is the old alignment of US 50 in the capital region of Maryland which heads east into downtown Bladensburg.

curves north and its name changes to Baltimore Avenue passing industrial areas on the east and the Old Port of Bladensburg Community Park on the west.

The route narrows to a two-lane undivided road and continues through a mix of residential, commercial, and industrial areas.

reaches an at-grade railroad crossing with a component of the Y junction between CSX Transportation's Capital Subdivision line and its Alexandria Extension.

serves the southwestern Baltimore County community of Halethorpe and connects US 1 with full-access interchanges with Interstate 95 (I-95) and I-695.

The segment from SR 16 to the northern terminus at US 1 is maintained by the City of St. Augustine and is the only AASHTO-defined road in Florida that is not under state maintenance.

and SR A1A run along the west shore of the Matanzas River then curves to the northwest in front of the Castillo de San Marcos.

They extend into the heart of Waycross, while the mainline route of US 1/US 23/SR 4 heads west across the southern portion of the city.

On a curve to a nearly due west direction, they leave the CSX Transportation tracks and cross over the city drainage canal.

The five highways immediately begin paralleling the Jesup Subdivision and pass an office of the Georgia Department of Labor.

then turns left onto State Street, also signed as Ossie Davis Parkway, and travel to the northwest.

Just north of Abner Street, they begin paralleling another CSX Transportation rail line, specifically the Fitzgerald Subdivision.

An intersection with the northern terminus of Airport road leads to the Erin Johnson Softball Complex, Ware State Prison, St. Illa Substance Abuse Center, the Ware County Sheriff's Office, and the Southland Waste Transfer Station.

was established in 1996, replacing the old mainline US 1/SR 4 through Waycross, via Memorial Drive, Plant Avenue, State Street, and Alma Highway.

Just south of an intersection with the western terminus of Tiger Trail, they pass Swainsboro High School.

It travels north through the heart of downtown, while the main route of US 1/SR 4 heads through the eastern part of the city.

Just south of an intersection with the eastern terminus of Coleman Chapel Road, they curve to a nearly due north direction.

Here, SR 24 splits off and then the other three highways pass Helen Clark Memorial Park and an office of Georgia Power.

A short distance north of Forest Street, the northbound lanes curve back to the northeast before intersecting US 1/SR 4/SR 17 in the northern part of the city.

is a business route and former segment of US 1 entirely within the city limits of Southern Pines, North Carolina.

was established in 1960 as a renumbering of US 1A through downtown Sanford, North Carolina, via Carthage Street and Hawkins Avenue.

was established in 1960 as a renumbering of US 1A through Gill and downtown Henderson, North Carolina, via Raleigh Road and Garnett Street.

When a bypass of Penndel was completed to the north of the borough in 1989, US 1 was moved from the Lincoln Highway to the freeway, allowing US 1 Bus.

begins as an offshoot of US 1 southwest of Newcastle and proceeds into the town, where it meets the southern terminus of State Route 215 (SR 215).

The two routes continued northeast and became City Avenue, forming the border between Montgomery County to the northwest and Philadelphia to the southeast.

was first designated by 1940 to run from Swarthmore to Northeast Philadelphia, continuing past Broad Street along Roosevelt Boulevard.