,
Texas, from the south. The Veterans Administration Hospital is shown in the background. ,
New Mexico, as it appears from U.S. Route 87, which becomes
Interstate 25 .
Texas In Texas, US 87 is a north–south highway that begins near the
Gulf Coast in
Port Lavaca, Texas, and heads north through
San Antonio,
Lubbock,
Amarillo, and
Dalhart to the
New Mexico state line near
Texline.
New Mexico US 87 continues in a northwesterly direction in
New Mexico and is signed by
NMDOT primarily as an east–west route. It merges with
US-64 (and thus the
Santa Fe Trail National Scenic Byway) in
Clayton, shortly after entering New Mexico. It continues to the northwest until
Des Moines, when it takes a more westerly approach to
Raton. In Raton, it separates from US 64 and merges with
Interstate 25 and
US 85, with which it remains concurrent through
Raton Pass and into Colorado, though it is unsigned on much of the concurrency.
Colorado US 87 remains concurrent with
I-25 throughout the state of
Colorado, which is a rare occurrence for a US highway to have a concurrency with an Interstate in its entirety within state boundaries. It is unsigned through the entire state.
Wyoming US 87 remains concurrent with Interstate 25 northward until exit 160 east of Glenrock where it joins
US Route 20/
US Route 26 from Glenrock to Casper. In Casper it splits from US-20/26 and rejoins I-25 at exit 186. It then remains concurrent with Interstate 25 northward until its terminus with
Interstate 90. It then follows I-90 west to exit 44 where it runs up to Sheridan. A portion of US-87 has been washed out for several years along this stretch and "temporary" detour signs are posted directing US-87 traffic along
Wyoming Highway 193 through Story. In Sheridan US-87 rejoins Interstate 90 into Montana.
Montana US 87 remains concurrent with Interstate 90 westward until Billings, where it breaks off and heads north. Between
Crow Agency and Billings, US 87 and I-90 are merged with
US 212. It intersects with (and briefly merges with)
US 12 in
Roundup and continues north with a slight bend to the northwest until, at
Grass Range it takes a sharp turn to the west at an intersection with
Montana State Highway 200. US 87 remains concurrent with Montana State Highway 200 until Great Falls. In
Lewistown, it merges with
US 191 and remains heading generally west. Some out of Lewistown, it breaks with US 191 and merges with
Montana State Highway 3, heading generally northwest and merging briefly with
US 89 before breaking with all three in
Great Falls. US 87 heads northeast then east to
Fort Benton and then generally northeast to its terminus with
US 2 about west of
Havre. ==History==