U.S. Route 23 or U.S. Highway 23 (US 23) is a major north–south U.S. Highway between Jacksonville, Florida, and Mackinaw City, Michigan. It is an original 1926 route which originally reached only as far south as Portsmouth, Ohio, and has since been extended. It was formerly part of the major highway known as the Dixie Highway. The highway's southern terminus is in Jacksonville, Florida at US 1/US 17. The northern terminus is at I-75 in Mackinaw City, Michigan. Route description |- |FL |37.67 |60.66 |- |GA |391.69 |630.74 |- |NC |109.22 |175.88 |- |TN |78.14 |125.83 |- |VA |60.91 |98.08 |- |KY |157.76 |253.89 |- |OH |234.86 |378.20 |- |MI |364.92 |587.63 |- |Total |1435.17 |2309.68 |} Florida U.S. Route 23 begins at U.S. Route 1 (Main Street) at the northern end of downtown Jacksonville, starting as a one-way pair, with the northbound lanes meeting with Florida State College. It is also unsigned State Road 139 from its southern terminus to its interchange with US 1 in northwestern Jacksonville (SR 139 continues east along SR 10A from the end of US 23 to SR 115). West of I-95, US 23 ends the one-way pair, continuing as Kings Road through northwestern Jacksonville, as an off-grid road. A few miles to the west, US 23 meets with US 1/SR 15 (Martin Luther King Jr. Parkway), becoming concurrent with the highway through the rest of its journey through Florida. The road continues northwest, intersecting with Interstate 295 and eventually makes its way out of Jacksonville. At Callahan, US 1/US 23 meets with U.S. Route 301, beginning a three-way concurrency as the road continues northward towards the St. Mary's River, leaving Florida and entering Georgia. Georgia In Georgia, US 23 enters from Florida running concurrently with US 1 and US 301 just south of Folkston. Within Homeland, US 301 branches off and US 23 continues northwesterly with US 1 as a divided four-lane highway toward Waycross where it intersects US 82. US 23 splits from US 1 north of Alma and continues to Hazlehurst as a two-lane highway. In Hazlehurst, US 23 intersects US 221 and begins running concurrently with US 341, a divided four-lane highway designated the Golden Isles Parkway. Continuing into McRae the highway intersects US 280, US 319 and US 441. In Eastman leaves US 341 to intersect I-16 near Macon. US 23 is two lanes from Eastman to the community