US-1

US-1 is a major north-south US Highway that spans the eastern coast of the United States, passing through Florida, Georgia, South Carolina, North Carolina, Virginia, Maryland, Delaware, Pennsylvania, New Jersey, New York, Connecticut, Rhode Island, Massachusetts, New Hampshire, and Maine. The highway connects major cities such as Miami, Florida, Jacksonville, Florida, Savannah, Georgia, Charleston, South Carolina, Wilmington, North Carolina, Richmond, Virginia, Washington, D.C., Baltimore, Maryland, Philadelphia, Pennsylvania, New York City, New York, New Haven, Connecticut, Providence, Rhode Island, Boston, Massachusetts, Portland, Maine, and Bangor, Maine. US-1 also passes through notable landmarks like the Everglades National Park, Cape Hatteras National Seashore, Assateague Island National Seashore, and Acadia National Park.

● Route Description

US-1 begins in Key West, Florida, at the southernmost tip of the continental United States, and runs north through the Florida Keys, passing by Key Largo, Islamorada, Florida, and Marathon, Florida. The highway then enters the Florida mainland, passing through Homestead, Florida, Miami, Florida, and Fort Lauderdale, Florida. US-1 continues north through Georgia, passing by Savannah, Georgia, and into South Carolina, where it goes through Charleston, South Carolina. The highway then enters North Carolina, passing by Wilmington, North Carolina, and continues into Virginia, where it passes through Richmond, Virginia, and the nation's capital, Washington, D.C.. US-1 then enters Maryland, passing by Baltimore, Maryland, and continues into Delaware, where it goes through Wilmington, Delaware. The highway then passes through Pennsylvania, entering New Jersey, and passing by New York City, New York, before continuing into Connecticut, where it goes through New Haven, Connecticut. US-1 then enters Rhode Island, passing by Providence, Rhode Island, and continues into Massachusetts, where it passes through Boston, Massachusetts. The highway then enters New Hampshire, passing by Portsmouth, New Hampshire, and continues into Maine, where it passes through Portland, Maine, and ends at the Canada–United States border in Fort Kent, Maine, near the Saint John River.

● History

The establishment of US-1 dates back to November 11, 1926, when the American Association of State Highway Officials (AASHO) approved the United States Numbered Highway System. The original route of US-1 was designed to connect the major cities of the eastern seaboard, providing a direct route for travelers and commerce. Over the years, the highway has undergone numerous changes, including realignments, bypasses, and upgrades to improve safety and efficiency. Notable events, such as the Great Depression, World War II, and the Interstate Highway Act of 1956, have also impacted the development and maintenance of US-1. The highway has been recognized for its historical significance, with sections listed on the National Register of Historic Places, such as the Old Spanish Trail in Florida and the Fall Line in Virginia.

● Major Intersections

US-1 intersects with several major highways, including I-95, I-85, I-75, I-64, and I-78. In Florida, US-1 meets US-27 in Miami, Florida, and US-17 in Jacksonville, Florida. In Georgia, the highway intersects with US-17 and US-80 in Savannah, Georgia. In South Carolina, US-1 meets US-17 and US-52 in Charleston, South Carolina. In North Carolina, the highway intersects with US-17 and US-64 in Wilmington, North Carolina. In Virginia, US-1 meets US-17 and US-60 in Richmond, Virginia, and US-50 in Washington, D.C.. In Maryland, the highway intersects with US-50 and US-40 in Baltimore, Maryland. In Pennsylvania, US-1 meets US-30 and US-202 in Philadelphia, Pennsylvania. In New Jersey, the highway intersects with US-9 and US-22 in Newark, New Jersey. In New York, US-1 meets US-9 and US-20 in New York City, New York. In Connecticut, the highway intersects with US-5 and US-44 in New Haven, Connecticut. In Rhode Island, US-1 meets US-1A and US-6 in Providence, Rhode Island. In Massachusetts, the highway intersects with US-3 and US-20 in Boston, Massachusetts. In New Hampshire, US-1 meets US-4 and US-202 in Portsmouth, New Hampshire. In Maine, the highway intersects with US-2 and US-201 in Bangor, Maine.

● Route Mileage

The total length of US-1 is approximately 2,369 miles (3,813 km), making it one of the longest highways in the United States. The highway spans across 15 states, from Key West, Florida to Fort Kent, Maine. The route mileage of US-1 varies by state, with the longest segment in Florida at approximately 547 miles (881 km), and the shortest segment in Delaware at approximately 15 miles (24 km). Other notable segments include the 174-mile (280 km) stretch in Georgia, the 170-mile (274 km) stretch in South Carolina, and the 216-mile (348 km) stretch in North Carolina.

● Traffic Volume

The traffic volume on US-1 varies significantly along its route, with the highest volumes in urban areas such as Miami, Florida, Washington, D.C., New York City, New York, and Boston, Massachusetts. According to the Federal Highway Administration (FHWA), the average annual daily traffic (AADT) on US-1 ranges from over 100,000 vehicles per day in Florida and New York to less than 10,000 vehicles per day in Maine. The highway is also a major route for commercial traffic, with many trucking companies and logistics providers relying on US-1 to transport goods and commodities along the eastern seaboard. Notable transportation hubs, such as the Port of Miami, Port of Savannah, and Port of New York and New Jersey, are also located along US-1, further increasing the highway's traffic volume. Category:U.S. Route 1