Business Loop I-90 - Gillette

1st-st-e-at-gillette-av — This sign directs motorists on 1st Street east to Gillette Avenue for the Gillette Business Loop. Gillette Avenue bisects the city center south from Business Loop I-90 (2nd Street). 06/30/12

bl-090-e-gillette — Within Downtown Gillette, Business Loop I-90 combines with U.S. 14-16/WY 59 along Second Street. The four routes are well signed through the city center, including this shield assembly posted along eastbound Second Street near Gillette Avenue. 06/30/12

Interstate 90 arcs across Gillette while a business loop connects the freeway with Downtown along Second Street. The 3.9 mile long route runs between Exit 124 at Skyline Drive (WY 50) and Exit 128. With the exception of a very short segment at the western end along WY 50, this business route is also signed in part as U.S. 14, U.S. 16 and Wyoming Highway 59.

With the development of Gillette into one of the largest cities in northern Wyoming, several motorist services are found along WY 59 (Douglas Highway) via Interstate 90 at Exit 126 rather than along the business loop. Guide signs along I-90 eastbound at Exit 128 omits all signed routes and instead displays "Port of Entry".

Updated August 1, 2026