Numbered_highways_in_the_united_states

Highways in the United States are split into at least four different types of systems.

• Interstate Highways
  • The Interstate Highway System is a federally funded and administered (but state-maintained) system of freeways that forms the transportation backbone of the U.S., with millions of Americans relying on it for commutes and freight transport daily. Interstate highways are all constructed to precise standards, designed to maximize high-speed travel safety and efficiency. Interstate Highways also contain auxiliary routes, which are normally assigned a three-digit route number. All Interstate Highways are part of the National Highway System, a network of highways deemed essential to the defense, economy, and mobility of the country.

• U.S. Highways
  • The U.S. Highway System is an older system, coordinated by the American Association of State Highway and Transportation Officials and maintained by state and local governments. Because of the prominence of the Interstate System, many U.S. Routes have been downgraded to state-numbered routes over the years, most famous being the decommissioning of the well-known U.S. Route 66.

• State Highways
  • Each state also has a state highway system (see also: State highway#United States). State highways are of varying standards and quality. Some state highways become so heavily traveled they are built to Interstate standards; others are so lightly traveled they are roads of minimal quality.

• County Highways
  • The final administrative level in some states is the county-maintained county highway. County routes vary widely from well-travelled expressways to dirt access roads into remote parts of the county.

Highways are generally organized by a route number or letter. These designations are generally displayed along the route by means of a highway shield; each system has its own unique shield design that will allow quick identification to which system the route belongs. Below is a list of the different highway shields used throughout the U.S.

Contents 1 Shield list 1.1 Interstate Highways 1.2 U.S. Numbered Highways 1.3 Generic routes 1.4 State highways and other similar systems 1.5 Territorial Highways 2 See also 3 External links

Shield list

This list is incomplete; you can help by expanding it.

Interstate Highways

Interstate Highway

Shown: Interstate 95

Interstate Highway, 3-digit variant

Shown: Interstate 695

Interstate Highway, state-name variant

Shown: Interstate 80 in California

Hawaii Interstate Highway

Shown: Interstate H-1

Alaska Interstate Highway**

Shown: Interstate A-1

Puerto Rico Interstate Highway**

Shown:PRI-1

Business Loop Highway

Shown: Business Loop 10

Business Spur Highway

Shown: Business Spur 20

** Note that the Alaska and Puerto Rico Interstates exist but are not signed as such - the above shields are theoretical only, and based on the real-life Hawaii Interstate Highways (H1, H2, H3, and H201), which are signed.

U.S. Numbered Highways

United States Numbered Highways

Shown: U.S. Route 30

United States Numbered Highways, California variant

Shown: U.S. Route 50 in California

United States Numbered Highways, Old Style variant

Shown: U.S. Route 66 in Arizona

Suffixed United States Numbered Highways

Shown: U.S. Route 25E

Historic United States Numbered Highways

Shown: Historic U.S. Route 66

Historic United States Numbered Highways, California variant

Shown: Historic U.S. Route 99 in California

Business Route

Shown: U.S. Route 1 Business

Bypass Route

Shown: U.S. Route 60 Bypass

Business Route, Maryland variant

Shown: U.S. Route 13 Business in Maryland

Truck Route

Shown: U.S. Route 9 Truck

Alternate Route

Shown: U.S. Route 40 Alternate

Scenic Route

Shown: U.S. Route 412 Scenic

Generic routes

Generic county route

Shown: County Route 64 in Baldwin County, Alabama

Generic county route (Alternate shield)

Shown: County Route 4 in St. Louis County, Minnesota

Generic Forest Route

Shown: Forest Route 7

Generic Indian Route

Shown: Indian Route 18

Generic U.S. Bicycle Route

Shown: U.S. Bicycle Route 76

Generic U.S. Bicycle Route (Alternate shield)

Shown: U.S. Bicycle Route 13

State highways and other similar systems

Many state highway markers are designed to suggest the geographic shape of the state or some other state symbol such as its flag. Most of the others are generically rectangular or some other neutral shape. Pennsylvania uses the unique shape of a keystone, designating "The Keystone State".

State Routes in Alabama

Shown: State Route 67

Alaska Routes

Shown: Alaska Route 5

State Route in Arizona

Shown: State Route 48

State Highway in Arkansas

Shown: State Highway 87

State Route in California

Shown: State Route 2

State Highways in Colorado

Shown: State Highway 62

Routes in Connecticut

Shown: Route 16

State Routes in Delaware

Shown: State Route 1

District of Columbia Routes

Shown: District of Columbia Route 295

State Roads in Florida

Shown: State Road 13

State Roads in Florida, tolled

Shown: State Road 869

State Route in Georgia

Shown: State Route 3

Route in Hawaii

Shown: Route 66

State Highway in Idaho

Shown: State Highway 41

Illinois Route

Shown: Illinois Route 19

State Roads in Indiana

Shown: State Road 67

State Highway in Iowa*

Shown: Iowa Highway 92

State Highway in Kansas*

Shown: K-99

State Highway in Kentucky*

Shown: State Highway 1

State Highway in Louisiana*

Shown: Louisiana Highway 3021

State Route in Maine

Shown: State Route 9

Maryland state highway

Shown: Maryland Route 2

Route in Massachusetts

Shown: Route 24

State Trunkline in Michigan

Shown: M-28

Highway in Minnesota

Shown: Highway 62

Highway in Mississippi

Shown: Mississippi Highway 1

Route in Missouri

Shown: Route 43

Route in Missouri, supplemental variant

Shown: Route K

Highway in Montana

Shown: Montana State Highway 80

Secondary Highway in Montana

Shown: Montana Secondary Highway 201

State Highway in Nebraska

Shown: Nebraska Highway 2

State Route in Nevada

Shown: State Route 28

New Hampshire Route

Shown: New Hampshire Route 16

Route in New Jersey

Shown: Route 33

State Highway in New Mexico*

Shown: New Mexico State Highway 516

Route in New York

Shown: New York State Route 15

Parkway in upstate New York

Shown: Bronx River Parkway

Parkway on Long Island, New York

Shown: Meadowbrook Parkway

State Highway in North Carolina

Shown: North Carolina Highway 130

State Highways in North Dakota*

Shown: State Highway 23

State Route in Ohio

Shown: State Route 2

State Highway in Oklahoma, new shield

Shown: State Highway 1

State Highway in Oklahoma, old shield

Shown: State Highway 1

Route in Oregon

Shown: Oregon Route 58

State Route in Pennsylvania*

Shown: Pennsylvania Route 39

Route in Rhode Island

Shown: Route 3

State Highway in South Carolina, new shield

Shown: South Carolina Highway 462

State Highway in South Carolina, old shield

Shown: South Carolina Highway 64

State Highway in South Dakota

Shown: South Dakota Highway 10

State Route in Tennessee

Shown: State Route 14

Secondary State Route in Tennessee

Shown: Secondary State Route 14

State Highway in Texas

Shown: State Highway 6

State Highway in Texas, tolled

Shown: State Highway 121

State Highway Loop in Texas

Shown: State Highway Loop 1

State Highway Spur in Texas

Shown: State Highway Spur 366

State Beltway in Texas

Shown: Texas Beltway 8

Farm to Market Road in Texas

Shown: Farm to Market Road 1093

Park Road in Texas

Shown: Park Road 5

Recreational Road in Texas

Shown: Recreational Road 2

State NASA Road in Texas

Shown: NASA Road 1

Old San Antonio Road in Texas

Shown: Texas OSR the first road in Texas

State Route in Utah

Shown: State Route 201

Vermont Route

Shown: Vermont Route 15

Vermont Route, "state numbered town highway" variant

Shown: Locally maintained Vermont Route 1

Virginia State Route

Shown: State Route 7

Virginia State Highway, secondary or frontage state highway

Shown: State Route 7100

State Route in Washington

Shown: State Route 202

Primary State Highways in Washington

Shown: PSH 1

West Virginia State Route*

Shown: West Virginia Route 46

West Virginia County Route

Shown: County Route 5

Wisconsin State Trunk Highway

Shown: State Trunk Highway 29

Wisconsin County Trunk Highway

Shown: County Trunk Highway L

State Highway in Wyoming*

Shown: Wyoming Highway 24

A * means that the official name is unconfirmed.

Territorial Highways

American Samoa Highway*

Shown: Territorial Route 001

Guam Highways*

Shown: Guam Highway 8

Puerto Rico Primary Highway*

Shown: Puerto Rico Primary Highway 1

Puerto Rico Urban Primary Highway*

Shown: Puerto Rico Urban Primary Highway 1

Puerto Rico Secondary Highway*

Shown: Puerto Rico Secondary Highway 970

Puerto Rico Tertiary Highway*

Shown: Puerto Rico Tertiary Highway 3

U.S. Virgin Islands Highway*

Shown: U.S. Virgin Islands Highway 10

A * means that the official name is unconfirmed.

See also

• List of roads and highways
• List of toll roads
• Circular highway shield
• National Highway System
• Numbered highways in Canada

External links

• Full list of state route markers
• Road Signs (drawings and photos of old and new signs)
• Old Trails - US and Canadian Roads in the 20th Century (includes drawings and photos of old signs)

v • d • e Numbered highways in the United States
National systems	Interstate Highways • U.S. Routes	: image is invalid or non-existent U.S. Roads Portal
State highways	Alabama • Alaska • Arizona • Arkansas • California • Colorado • Connecticut • Delaware • Florida • Georgia • Hawaii • Idaho • Illinois • Indiana • Iowa • Kansas • Kentucky • Louisiana • Maine • Maryland • Massachusetts • Michigan • Minnesota • Mississippi • Missouri • Montana • Nebraska • Nevada • New Hampshire • New Jersey • New Mexico • New York • North Carolina • North Dakota • Ohio • Oklahoma • Oregon • Pennsylvania • Rhode Island • South Carolina • South Dakota • Tennessee • Texas • Utah • Vermont • Virginia • Washington • West Virginia • Wisconsin • Wyoming
Other areas	Washington, D.C. • American Samoa • Guam • Puerto Rico • Virgin Islands

v • d • e U.S. state insignia
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