Highway naming

From Wazeopedia

Revision as of 04:32, 30 January 2019 by SkyviewGuru (talk | contribs) (Corrected Idaho guidance)

This table identifies the specific naming conventions used for the various highway types for each state in the Unites States. Details of the naming convention is covered in the road naming page.

All interstate highways (freeways) are named the same across all states, so they are not included in the table below.

The state names are linked to the respective wiki page that provides specific editing guidelines (and other information) for that state. If the state link is red, there are no specific guidelines for that state yet. If you actively edit in that state consider creating that page and providing information to other editors in your state.

State State Highway/Route
County Highway/Road Township Highway/Road
Alabama SR-xxx CR-xxx
Alaska AK-xxx N/A
Arizona SR-xxx CR-xxx
Arkansas AR-xxx CR-xxx
California SR-xxx
(currently under discussion)
Colorado SH-xxx
(SW Forum) &
(CO Forum)&
(CO Forum)
Connecticut SR-xxx N/A (Wikipedia)
Delaware SR-xxx (Forum)

N/A (Wikipedia)
District of Columbia DC-295
(TTS="DC 295")
Florida SR-xxx CR-xxx
Georgia SR-xxx CR-xxx
Hawaii HI-xxx CR-xxx
Idaho ID-xxx CR-xxx
Illinois SR-xxx CH-xxx (Shielded County Hwy)
CR-xxx (Named County Road)
Indiana IN-xxx
(TTS="Indiana xxx")
When signed "County Road xxx"
Iowa IA-xxx
(TTS="Iowa xxx")
Kansas K-xxx
(TTS="kay xxx")
County Hwy xxx
Kentucky KY-xxx
(TTS="Kentucky xxx")
(Only if signed)
Louisiana LA-xxx
(TTS="Louisiana xxx")
Parish Rd xxx
Maine SR-xxx
SR-xxx BUS
Maryland MD-xxx
(TTS="Maryland xxx")
Massachusetts SR-xxx N/A
Michigan M-xxx
(TTS="emm xxx")
Minnesota MN-1.png = MN-xxx

(TTS="Minnesota xxx")

Baldwin County Route 64 AL.svg.png = CH-xxx
St Louis County Route 7 MN.svg.png = CR-xxx
Mississippi MS-xxx
(TTS="Mississippi xxx")
Missouri MO-xxx

(TTS="Missouri xxx")
SH-xxx (Sec lettered)(TTS="State Highway xxx")

Montana MT-xxx MT-1.png (Primary Highways) (TTS="Montana xxx")
SH-xxx (Secondary Highways) (TTS="State Highway xxx")
Nebraska N-xxx
(TTS="Nebraska xxx")
(TTS="Nebraska Link xxx")
(TTS="Nebraska Spur xxx")
(TTS="Nebraska Recreation Road xxx")
Nevada NV-xxx
(TTS="Nevada xxx")
New Hampshire SR-xxx County Hwy xxx
New Jersey SR-xxx
(TTS="State Route xxx")
New Mexico SR-xxx CR-xxx
New York NY-xxx
(TTS="New York xxx")
(TTS="County Road xxx")
North Carolina NC-xxx
(TTS="North Carolina xxx")
N/A (Wikipedia)
North Dakota ND-xxx
(TTS="North Dakota xxx")
County Hwy xxx
Ohio SR-xxx CR-xxx, CH-xxx (only in Wyandot county) TR-xxx, TH-xxx (only in Wyandot county)
Oklahoma SH-xxx CR-xxx
Oregon State Hwy xxx N/A
Pennsylvania SR-xxx na
Rhode Island RI-xxx N/A
South Carolina SC-xxx
(TTS="South Carolina xxx")
S-##-xxx (secondary roads)
CR-xxx# (county routes)
South Dakota SD-xxx
(TTS="South Dakota xxx")
Tennessee TN-xxx for Primary
(TTS="Tennessee xxx")
SR-xxx for Secondary
Texas SH-xxx CR-xxx
Utah SR-xxx CR-xxx
Vermont VT-xxx
(TTS="Vermont xxx")
Virginia SR-xxx < 600 & 785 & 895, VA-xxx > 600
(TTS="Virginia xxx")
Washington SR-xxx CR-xxx
West Virginia WV-xxx
(TTS="West Virginia xxx")
Wisconsin WIS-xxx
(TTS="Wisconsin xxx")
Wyoming WY-Highway-Blank.png = SH-xxx
(TTS="State Highway xxx")
WY-County-Blank.png = CR-xxx & County Lane xxx

Note: Some states are in the process of considering a change and may be designated with cnsd.

If you are an editor for a particular state that feels your state should consider a different format than you see above, please come to the US forums and select the sub-forum region for your state. In that sub-forum start a discussion around making a change to the naming convention for your state and tell the reasons why you think it should be done. Once consensus is reached the change can be made here.

General discussions on this page can be found in this thread.