Business Loop I-90 - Coeur d’Alene

Former Business Route

Ramsey Rd east at the former Business Loop I-90 in Couer d'Alene, ID
Ramsey Road travels south over Interstate 90 at Exit 11. Business Loop I-90 in Coeur d'Alene, Idaho began at this interchange. The overhead pictured here was adjusted by 2012 to remove the business loop shield. 09/02/06

Business Loop I-90 followed the course of old U.S. 10 for 3.8 miles between Exits 11 and 15. The route followed Northwest Boulevard south to the city center and Sherman Avenue east back to I-90. Two segments remain state maintained as of 2016. These include a 0.116 mile section of Northwest Boulevard within the diamond interchange at Exit 11 and what the ITD Milepoint Log labels as the 0.147 mile long I-90 Spur between 23rd Street / Coeur d' Alene Lake Drive and the east side ramps with I-90 at Exit 15 (ITD, 2026).

All signed references to the Business Loop were removed by August 2012. This included green outs over signs posted at Northwest Boulevard.

Back in 1989, when Interstate 90 along the northern edge of Lake Coeur d’Alene was incomplete, the business loop designation continued even further east beyond Exit 15 along what is now Coeur d’Alene Lake Drive (former U.S. 10). Coeur d’Alene Lake Drive provided a temporary routing for I-90 pending completion of the freeway. Today, this segment is a 5.5-mile long scenic drive that culminates at a dead-end in the shadow of the freeway. It was still maintained by the state as of October 2013 (Coeur d’Alene Press, 2012 2013)

References

Idaho Transportation Department (ITD). (2026, January 25). I-90 Business Loop. Milepoint Log - State Highway System. Retrieved August 3, 2026 from https://apps.itd.idaho.gov/apps/milepointlog/logs/interState/I_90_MPLog.pdf
City to discuss taking over maintenance of Coeur d’ Alene Lake Drive. (2012, October 1). Coeur d’Alene Press.
Drive delay: Coeur d’Alene City Council in no hurry over ITD road offer. (2013, May 21). Coeur d’Alene Press.
Updated August 1, 2026