Business Loop I-25 - Cheyenne

Business Loop I-25 travels 7.9 miles east from I-25 through Cheyenne alongside Business U.S. 87 between Exits 7 and 12. The southernmost segment of Business Loop I-25 and Business U.S. 87 is an east-west leg that overlaps with WY 212 (College Drive) between Exit 7 and Central Avenue, where the business route combines with U.S. 85 northward to Interstate 80.

Meeting I-80 at Exit 362, Business Loop I-25, U.S. 85, and Business U.S. 87 north combine with I-180. Despite the Interstate 180 designation, Central Avenue is an at-grade boulevard with traffic signals and a speed limit of 40 miles per hour. However, this is the best route from Interstate 80 into Downtown Cheyenne, as it has twin viaducts that carry Central Avenue over the large Union Pacific Railroad yard.

Upon descending from the viaducts, Business Loop I-25, U.S. 85, Business U.S. 87, and I-180 meet Business Loop I-80 and U.S. 30 (Lincolnway / 16th Street). Interstate 180 ends at this traffic signal complex, and the northbound and southbound directions separate into a couplet (Central Avenue south and Warren Avenue north) from Business Loop I-80 and U.S. 30 (Lincolnway / 16th Street) to Cheyenne Regional Airport (CYS).

As Cheyenne is the capital city of Wyoming, the business route passes near the Wyoming state governmental complex, steering close to the Wyoming State Capitol and Wyoming State Museum, among other Wyoming state buildings. North of Cheyenne Regional Airport, Warren Avenue forms a multi lane arterial to Central Avenue, which returns the business route to Interstate 25 across from F.E. Warren Air Force Base at Exit 12. Business Loop I-25 and U.S. 87 Business end at this point, while U.S. 85 joins Interstate 25 and U.S. 87 north. A short spur also carries WY 224 to additional state governmental buildings on the west side of the diamond interchange at Exit 12.