This is a file from the Wikimedia Commons. The description on its description page there is shown below.
Image File history File links Commons-logo. ...
I, the creator of this image, hereby release it into the public domain. If that cannot be done for any reason including bureaucratic garbage, I release it under the following license:
This image is copyrighted. The copyright holder has irrevocably released all rights to it, allowing it to be freely reproduced, distributed, transmitted, used, modified, built upon, or otherwise exploited in any way by anyone for any purpose, commercial or non-commercial, with or without attribution of the author.
600 mm by 600 mm (24 in by 24 in) U.S. Route shield, made to the specifications of the 2004 edition of Standard Highway Signs. (Note that there is a missing "J" label on the left side of the diagram.) Uses the Roadgeek fonts. (United States law does not permit the copyrighting of typeface designs, and the fonts are meant to be copies of a U.S. Government-produced work anyway.)
Missouri 366 in St. ... The following bannered highways have existed: Defunct routes are listed in italics. ... List of Oklahoma State Highways Oklahoma has a large network of roads maintained by the state. ... // Summary Below is a list of highways in Texas, comprising of primary and secondary Interstate Highways, primary and secondary U.S. Highways, and state highways. ... Junction Location Dallas, County SH 183 Irving TX Spur 482 Irving TX Loop 12 Irving TX Spur 348 Irving SH 161 (aka President George Bush Turnpike) Irving Tarrant, County SH 121 Grapevine Bus SH 114 Grapevine SH 121 Grapevine SH 26 Grapevine Bus SH 114 Grapevine FM 1709 Southlake Denton...