WP:Naming conventions (U.S. state and territory highways)

{{Wikipedia subcat guideline|naming convention|U.S. state and territory highways|WP:USSH}}

This Naming Convention is intended to standardize the naming formats used in articles pertaining to highways in the United States.

The highway types covered by this convention have two naming formats – official name and article title – which can be the same. The official name is the naming format typically used by the state department of transportation (DOT) or the general public, and is what should be used to refer the highway in article prose. The article title is a disambiguated form obviously used for article naming, and should only be used in article prose if a sentence would otherwise be ambiguous.

If you disagree with the conventions described here, or wish to add to them, please discuss it on the talk page. These conventions were established through previous debates, and any proposals to change such conventions may be contentious (see also the Arbitration Committee Highways case).

U.S. state highways

The following are systems of state highways maintained and numbered by each U.S. state, territory or district. The naming conventions listed below may be supplemented by guidelines of individual state highway task forces under the U.S. Roads WikiProject (please see WP:USRD/SUB for a list). The standardized abbreviations in use in the {{tl|jct}} template are also listed below for convenience.

class=wikitable

!scope="col"|State/Territory/District

!scope="col"|Official name

!scope="col"|Article title

!scope="col"|Abbreviation

Alabama

|State Route X

|Alabama State Route X

|SR X

Alaska

|Alaska Route X

|Alaska Route XNamed highways are at Highway.

|AK-X

American Samoa

|American Samoa Highway X

|ASXXXXAmerican Samoa uses four-digit numbers, padding them with the necessary zeros.

Arizona

|State Route X

|Arizona State Route X

|SR X

Arkansas

|Highway X

|Arkansas Highway X

|AR X

California

|State Route X

|California State Route X

|SR X

Colorado

|State Highway X

|Colorado State Highway X

|SH X

Connecticut

|Route X

|Connecticut Route X

|Route X

Delaware

|Delaware Route X

|DE X

District of Columbia

|District of Columbia Route X

|DC X

Florida

|State Road X

|Florida State Road X

|SR X

Georgia

|State Route X

|Georgia State Route X

|SR X

Guam

|Guam Highway X

|GH-X

Hawaii

|Route X

|Hawaii Route X

|Route X

Idaho

|State Highway X

|Idaho State Highway X

|SH-X

Illinois

|Illinois Route X

|IL X

Indiana

|State Road X

|Indiana State Road X

|SR X

Iowa

|Iowa Highway X

|Iowa X

Kansas

|K-X

|K-X (Kansas highway)

|K-X

Kentucky

|Kentucky Route X

|KY X

Louisiana

|Louisiana Highway X

|LA X

Maine

|State Route X

|Maine State Route X

|SR X

Maryland

|Maryland Route X

|MD X

Massachusetts

|Route X

|Massachusetts Route X

|Route X

Michigan

|M-X

|M-X (Michigan highway)

|M-X

Minnesota

|Minnesota State Highway X

|MN X

Mississippi

|Mississippi Highway X

|MS X

Missouri

|Route X

|Missouri Route X

|Route X

Montana

|Montana Highway X

|MT X

Montana (secondary)

|Secondary Highway X

|Montana Secondary Highway X

|S-X

Nebraska

|Nebraska Highway X

|N-X

Nevada

|State Route X

|Nevada State Route X

|SR X

New Hampshire

|New Hampshire Route X

|NH X

New Jersey

|Route X

|New Jersey Route X

|Route X

New Mexico

|State Road X

|New Mexico State Road X

|NM X

New York

|New York State Route X

|NY X

North Carolina

|NC X

|North Carolina Highway X

|NC X

North Dakota

|North Dakota Highway X

|ND X

Northern Mariana Islands

|Northern Mariana Islands Highway X

|Hwy. X

Ohio

|State Route X

|Ohio State Route X

|SR X

Oklahoma

|State Highway X

|Oklahoma State Highway X

|SH-X

Oregon

|Oregon Route X

|OR X

Pennsylvania

|Pennsylvania Route X

|PA X

Pennsylvania Quadrant

|State Route XXXX

|State Route XXXX (Y County, Pennsylvania)

|SR X

Puerto Rico

|PR-X

|Puerto Rico Highway X

|PR-X

Rhode Island

|Route X

|Rhode Island Route X

|Route X

South Carolina

|South Carolina Highway X

|SC X

South Dakota

|Highway X

|South Dakota Highway X

|SD X

Tennessee

|State Route X

|Tennessee State Route X

|SR X

Texas

|State Highway X

|Texas State Highway X

|SH X

U.S. Virgin Islands

|U.S. Virgin Islands Highway X

|Hwy X

Utah

|State Route X

|Utah State Route X

|SR-X

Vermont

|Vermont Route X

|VT X

Virginia

|State Route X

|Virginia State Route X

|SR X

Washington

|State Route X

|Washington State Route X

|SR X

West Virginia

|West Virginia Route X

|WV X

Wisconsin

|State Trunk Highway X

|Wisconsin Highway X

|WIS X

Wyoming

|Wyoming Highway X

|WYO X

The official name is to be used when writing about the road in an article; only use the article title in another article if the sentence would otherwise be ambiguous. Never use a colloquial title other than those listed above, unless you are adding a mention of its existence to the article.

Official nicknames for highways (i.e. Golden State Freeway, Tri-State Tollway, New Jersey Turnpike) may be used if the DOT uses it. However, colloquial names such as The Loneliest Road in America should not be used.

Interstate and U.S. Routes

The following are systems of national highways maintained by the states which have their numbering assignments made by the American Association of State Highway and Transportation Officials (AASHTO).

class=wikitable

!scope="col"|System

!scope="col"|Subtype

!scope="col"|Official name

!scope="col"|Article title

!scope="col"|Abbreviation

rowspan=5|Interstate Highway System

|Primary

|Interstate X

|Interstate X
Interstate X (State)The state name must be added where the route number is repeated in multiple locations. If the segments cover multiple states, use only the terminal state names separated by an en dash (–). In these cases, "Interstate X" should be used as a disambiguation page.

|rowspan=3|I-XTxDOT uses "IH X" internally, but for consistency, we've standardized on "I-X" to match the other states.For Alaska, use A-X. For Hawaii, use H-X. For Puerto Rico, use PRI-X.

Primary, state-detail

|Interstate X

|Interstate X in State

Auxiliary

|Interstate X

|Interstate X
Interstate X (State)

Business loops

|Interstate X Business Loop,
Business Loop Interstate X

|rowspan=2|Interstate X Business (City, State)

|I-X BL
BL I-X
I-X Bus.

Business spurs

|Interstate X Business Spur
Business Spur Interstate X

|I-X BS
BS I-X
I-X Bus.

rowspan=8|United States Numbered Highway System

|Primary

|U.S. Route XThe official AASHTO route logs and documents refer to these highways as "U.S. Route X" while "United States Highway" appears as the heading for each route in the 1989 log, United States Numbered Highways. The term "U.S. Highway X" is used by many state DOTs, and may be used in article prose where this nomenclature is prevalent.

|U.S. Route X

|rowspan=2|US X
US-XHyphenation varies by state at this time

Primary, state-detail

|U.S. Route X

|U.S. Route X in State

Alternate routes

|U.S. Route X Alternate,
Alternate U.S. Route X

|U.S. Route X Alternate (Location)

|US X Alt.
Alt. US X
US XA

Business routes

|U.S. Route X Business,
Business U.S. Route X

|U.S. Route X Business (Location)

|US X Bus.
Bus. US X
US XB

Bypass routes

|U.S. Route X Bypass,
Bypass U.S. Route X

|U.S. Route X Bypass (Location)

|US X Byp.
Byp. US X

Scenic routes

|U.S. Route X Scenic,
Scenic U.S. Route X

|U.S. Route X Scenic (Location)

|US X Scenic
Scenic US X

Spur routes

|U.S. Route X Spur,
Spur U.S. Route X

|U.S. Route X Spur (Location)

|US X Spur
Spur US X
US XS

Truck routes

|U.S. Route X Truck,
Truck U.S. Route X

|U.S. Route X Truck (Location)

|US X Truck
Truck US X

Footnotes

U.S. state highways