Iowa Highway 136

Iowa Highway 136
Iowa 136 highlighted in red
Route information
Maintained by Iowa DOT
Major junctions
South end	IL 136 at Fulton, Ill.
Major intersections	US 67 / Great River Road in Clinton US 61 near Delmar US 151 in Cascade
North end	US 20 / US 52 in Dyersville
Location
Country	United States
State	Iowa
Counties	Clinton Jones Dubuque
Highway system
Iowa Primary Highway System Interstate US State Secondary Scenic
← US 136 → Iowa 137

Iowa Highway 136 (Iowa 136) is a state highway maintained by the Iowa Department of Transportation. It runs for 87.611 miles (140.996 km) in eastern Iowa. It begins at the Mississippi River in Clinton on the Mark Morris Memorial Bridge, where it continues as Illinois Route 136. It ends at an interchange with U.S. Highway 20 (US 20) and US 52 in Dyersville. Although signed as a north–south highway throughout, the highway runs east to west between Clinton and Oxford Junction, while turning north at Oxford Junction to complete its run to Dyersville. For most of its existence, Iowa 136 connected Clinton and Luxemburg. During the 1950s-1960s, the northern and southern ends of the route shifted slightly because nearby United States highways changed their alignments. The northern end of Iowa 136 shifted again in early 2022.