State Road 5 is a mostly-unsigned state highway

State highway

State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...

 in the state of Florida

Florida

Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

. It is mainly signed as U.S. Route 1 from its south end in Key West, Florida

Key West, Florida

Key West is a city in Monroe County, Florida, United States. The city encompasses the island of Key West, the part of Stock Island north of U.S. 1 , Sigsbee Park , Fleming Key , and Sunset Key...

 to Jacksonville, Florida

Jacksonville, Florida

Jacksonville is the largest city in the U.S. state of Florida in terms of both population and land area, and the largest city by area in the contiguous United States. It is the county seat of Duval County, with which the city government consolidated in 1968...

, and U.S. Route 17 from Jacksonville to the Georgia

Georgia (U.S. state)

Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...

 state line at the Saint Marys River. U.S. Route 1 is State Road 15

State Road 15 (Florida)

State Road 15 is part of the Florida State Road System. It runs from SR 80/SR 880 at Belle Glade north along the east shore of Lake Okeechobee to Okeechobee. Then it runs north to SR 500 at Holopaw, and northwest along SR 500 to Ashton State Road 15 (commonly SR 15) is part of the Florida State...

 northwest from Jacksonville.

However, from northern Lantana, Florida

Lantana, Florida

Lantana is a town in Palm Beach County, Florida, United States. The population was 9,437 at the 2000 census. As of 2004, the population recorded by the U.S. Census Bureau is 10,389.-History:...

 through Lake Worth, Florida

Lake Worth, Florida

Lake Worth is a city in Palm Beach County, Florida, which takes its name from the body of water along its eastern border, originally called "Lake Worth", and now generally known as the Lake Worth Lagoon. The lake itself was named for General William J. Worth, who led U.S. forces during the last...

 to Belvedere Road in West Palm Beach, Florida

West Palm Beach, Florida

West Palm Beach, is a city located on the Atlantic coast in southeastern Florida and is the most populous city in and county seat of Palm Beach County, the third most populous county in Florida with a 2010 population of 1,320,134. The city is also the oldest incorporated municipality in South Florida...

, State Road 5 is separate from U.S. Route 1, which runs to the west on the older but wider Dixie Highway

Dixie Highway

The Dixie Highway was a United States automobile highway, first planned in 1914 to connect the US Midwest with the Southern United States. It was part of the National Auto Trail system, and grew out of an earlier Miami to Montreal highway. The final result is better understood as a small network of...

. State Road 5 uses the parallel Olive Avenue until Belvedere Road, where it turns west one block to rejoin Dixie Highway and U.S. Route 1. Until around 2004, Olive Avenue carried northbound U.S. Route 1 (State Road 5) north from Belvedere Road. Olive Avenue is now a two-way city street from Belvedere Road north to State Road 704

State Road 704 (Florida)

Also known as Okeechobee Boulevard, State Road 704 is a major east–west boulevard in the West Palm Beach area. Its western terminus is an intersection with SR 7 near Royal Palm Beach and The Acreage; its eastern terminus is an intersection with SR A1A in Palm Beach.-Route description:East of...

 where the one-way pair

One-way pair

A one-way pair, one-way couple, or just couplet is a pair of parallel, usually one-way streets that carry opposite directions of a signed route or major traffic flow, or sometimes opposite directions of a bus or streetcar route....

now begins, and so both directions of State Road 5 now go west one block on Belvedere Road to Dixie Highway.