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Iowa Highway 136 (Iowa 136) is a state highway maintained by the Iowa Department of Transportation, which runs for 98 miles (158 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 intersection with U.S. Route 52 and Iowa Highway 3 in Luxemburg. 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 Luxemburg. For most of its existence, Iowa 136 has 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.

Iowa Highway 136 marker

Iowa Highway 136
Iowa 136 highlighted in red
Route information
Maintained by Iowa DOT
Length97.733 mi[1] (157.286 km)
Major junctions
South end IL 136 at Fulton, Ill.
North end US 52 / Iowa 3 in Luxemburg
Highway system
US 136Iowa 137


Route descriptionEdit

Iowa Highway 136 begins on the Mark Morris Memorial Bridge over the Mississippi River at Clinton. It descends the approach to the bridge and intersects U.S. Route 67 (US 67), which is running along N. Second Street. It turns to the north, overlapping US 67 for 34 mile (1.2 km) until US 67 splits away at N. Third Street.[1] From US 67, Iowa 136 goes west along Main Avenue and leaves town enters rural Clinton County.[2] It heads to the north-northwest for 10 miles (16 km) towards Goose Lake along a narrow, curving stretch of road. Conditions along this part of Iowa 136 have led some residents to create a page on the social networking website Facebook dedicated to calling attention to the road.[3]

From Goose Lake, Iowa 136 continues to the west towards Delmar for 15 miles (24 km), passing through Charlotte along the way. Three miles (4.8 km) west of Delmar, it meets U.S. Route 61 at a diamond interchange. This interchange is adjacent to the 61 Drive In outdoor movie theatre. It continues west through the small communities of Elwood and Lost Nation, before reaching Oxford Junction.[4]

At Oxford Junction, Iowa 136 turns to the north and travels 7 miles (11 km) to Wyoming, where it meets Iowa Highway 64. For one mile (1.6 km), Iowa 64 and Iowa 136 overlap each other through Wyoming. On the western edge of the community, Iowa 136 splits away and travels north towards Onslow. North of Onslow, it passes through rural Jones County for 15 miles (24 km), crossing the Maquoketa River, before reaching Cascade and U.S. Route 151.[1]

Now in Dubuque County, Iowa 136 crosses the North Fork Maquoketa River and heads northwest towards Worthington. Five miles (8.0 km) later, it meets U.S. Route 20 at a partial cloverleaf interchange south of Dyersville. North of Dyersville, it travels north, through New Vienna, and to the northeast towards Luxemburg.[4] At Luxemburg, Iowa 136 enters town along Andre Street. The route ends at an intersection with U.S. Route 52 and Iowa Highway 3. Northbound US 52 continues north along Andre Street, while southbound US 52 and both directions of Iowa 3 follow Main Street.[5]


In 1926, when Primary Road No. 20 (PR 20) was renamed U.S. Route 61, Primary Road No. 61, which connected Clinton to US 61 west of Delmar, was renumbered Primary Road No. 136.[6] By 1947, Iowa 136 had been extended to its current extent, but only the PR 61 section of road and another section between Wyoming and Oxford Junction had been paved.[7] In Clinton, Iowa 136 originally began at the N. Third Street intersection with U.S. Route 67. After U.S. Route 30 was rerouted over the Gateway Bridge in 1955, Iowa 136 was extended to cross the Mississippi River over the Lyons-Fulton Bridge.[8] A year later, an Alternate U.S. Route 30 was designated over the old alignment of US 30 through Clinton, and Iowa 136 was pulled back to its old end.[9] In 1967, the Alternate US 30 designation was dropped and Iowa 136 again crossed the river.[10]

From 1963 to 1967, U.S. Route 52 was realigned from Dubuque to Luxemburg to follow U.S. Route 20 to Dyersville and Iowa 136 to Luxemburg while its original alignment was rebuilt. During this time, Iowa 136 was truncated back to US 20 at Dyersville, but it was redesignated along this segment after US 52 returned to its old alignment.[11][12]

Major intersectionsEdit

Mississippi River0.0000.000  IL 136 east – FultonContinuation in Illinois
Mark Morris Memorial Bridge
   US 67 / Great River Road south (N. 2nd Street)
Southern end of US 67 overlap
   US 67 / Great River Road north (N. 3rd Street)
Northern end of US 67 overlap
Delmar30.42748.968  US 61 – Maquoketa, DeWitt
JonesWyoming53.96286.843  Iowa 64 east (Main Street) – MaquoketaSouthern end of Iowa 64 overlap
54.92488.392  Iowa 64 west (Main Street) – AnamosaNorthern end of Iowa 64 overlap
DubuqueCascade73.528118.332  US 151 – Cedar Rapids, Dubuque
Dyersville87.611140.996  US 20 – Waterloo, Dubuque
Luxemburg97.733157.286  US 52 north (Andre Street) – Guttenberg
   US 52 south / Iowa 3 (Main Street) – Colesburg, Dubuque
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

External linksEdit


  1. ^ a b c d "2009 Volume of Traffic on the Primary Road System of Iowa" (PDF). Iowa Department of Transportation. January 1, 2009. Retrieved August 17, 2010.
  2. ^ Clinton (PDF) (Map). Iowa Department of Transportation. 2010. Retrieved August 24, 2010.
  3. ^ "Fix Highway 136". Facebook. Retrieved August 24, 2010.
  4. ^ a b Transportation Map (PDF) (Map). Iowa Department of Transportation. 2010. § L6:N4. Retrieved August 24, 2010.
  5. ^ Highway and Street Map of Luxemburg, Iowa (PDF) (Map). Iowa Department of Transportation. May 18, 2009. Retrieved August 24, 2010.
  6. ^ Junior Road Map: Eastern Iowa (Map). Rand McNally & Company. 1926. Retrieved August 24, 2010.
  7. ^ Road and Reference Atlas (Map). 1:1,077,120. Rand McNally & Company. 1947. pp. 42–43. § D10:E12. |access-date= requires |url= (help)
  8. ^ Iowa State Highway Map (PDF) (Map). Iowa State Highway Commission. 1956. Clinton inset. Retrieved August 24, 2010.
  9. ^ Iowa State Highway Map (PDF) (Map). Iowa State Highway Commission. 1957. Clinton inset. Retrieved August 24, 2010.
  10. ^ Iowa State Highway Map (PDF) (Map). Iowa State Highway Commission. 1968. Clinton inset. Retrieved August 24, 2010.
  11. ^ Iowa State Highway Map (PDF) (Map). Iowa State Highway Commission. 1964. § F24. Retrieved August 24, 2010.
  12. ^ Iowa State Highway Map (PDF) (Map). Iowa State Highway Commission. 1968. § F24. Retrieved August 24, 2010.