U.S. Route 52 in Iowa - Related Route

Related Route

Iowa Highway 946's short route begins at a partial trumpet interchange along the US 52 / US 61 / US 151 expressway. Northbound traffic passes beneath the expressway and joins southbound traffic on Locust Street. In the half-mile (800 m) between US 52 / US 61 / US 151 and US 20, Iowa 946 passes a light industrial area containing a Hy-Vee grocery store.

Iowa 946 intersects U.S. Route 20, known locally as Dodge Street, at a signal-controlled intersection. Immediately east of this intersection is the approach to the Julien Dubuque Bridge, which carries US 20 across the Mississippi River into East Dubuque, Illinois. Iowa 946 continues north on Locust for 1,000 feet (300 m) through another light industrial area. At the edge of downtown Dubuque, Highway 946 turns east for 600 feet (180 m) where it meets US 52 / US 61 / US 151 just west of Dubuque's Ice Harbor.

Iowa 946 was created along Locust Street upon the completion of an expressway which relocated U.S. Route 52, U.S. Route 61, and U.S. Route 151 away from Locust Street and closer to the Mississippi River. The new expressway carried the three routes beneath the approach to the Julien Dubuque Bridge, making a direct intersection impossible. Since all four routes are U.S. Highways and come from all directions, it was imperative to keep the routes connected.