Iowa Highway 946

From the AARoads Wiki: Read about the road before you go
Jump to navigation Jump to search

Iowa Highway 946

Iowa 946 highlighted in red
Route information
Maintained by Iowa DOT
Length0.940 mi[1] (1,513 m)
CountryUnited States
Highway system

Iowa Highway 946 (Iowa 946) is a short state highway that provides a direct connection between U.S. Highway 61 (US 61)  / US 151 and US 20 in downtown Dubuque. It was created in 1991 after the construction of an expressway made a direct connection between the two roadways impossible.

Route description

Iowa Highway 946's short route begins at an interchange along the 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 61 / US 151 and US 20, Iowa 946 passes a light industrial area. Iowa 946 intersects U.S. Highway 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 61 / US 151 just west of Dubuque's Ice Harbor.[2][3]


Iowa 946 was created along Locust Street upon the staggered completion of an expressway starting in 1991 which relocated US 52, US 61, and US 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. With the completion of the Southwest Arterial around the southern edge of Dubuque, US 52 was routed away from the downtown area.

Major intersections

The entire route is in Dubuque, Dubuque County.


US 61 south / US 151 south / Great River Road south
No access to northbound or from southbound US 61/US 151
0.7031.131 US 20 (Dodge Street) – Illinois, Waterloo
0.9401.513 US 61 / US 151 / Great River Road
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b 2016 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2016. Retrieved June 15, 2024.
  2. ^ Google (June 15, 2024). "Iowa Highway 946" (Map). Google Maps. Google. Retrieved June 15, 2024.
  3. ^ Iowa Department of Transportation (2021). State of Iowa Transportation Map (PDF) (Map). Ames: Iowa Department of Transportation. Dubuque inset. Retrieved June 15, 2024.

External links