Iowa Highway 127

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Iowa Highway 127

Iowa 127 highlighted in red
Route information
Maintained by Iowa DOT
Length15.985 mi[1] (25.725 km)
Major junctions
West end I-29 west of Mondamin
Major intersections Iowa 183 east of Mondamin
East end US 30 at Logan
CountryUnited States
Highway system
Iowa 122 Iowa 128

Iowa Highway 127 (Iowa 127) is an east–west highway in Harrison County. It begins at Interstate 29 near Mondamin and ends in Logan at U.S. Highway 30 (US 30). The highway is nearly 16 miles (26 km) long.

Route description

Iowa Highway 127 in Mondamin

Iowa Highway 127 begins at an interchange with Interstate 29 (I-29) west of Mondamin, traveling east along a two-lane highway. Just east of I-29, it meets Harrison County Road K45 (CR K45), which is a former alignment of US 75. Three miles (4.8 km) east of Mondamin, it meets the southern end of Iowa Highway 183, which is part of the Loess Hills Scenic Byway (LHSB). The LHSB follows Iowa 127 for 1+12 miles (2.4 km) before Iowa 127 turns to the east and the LHSB continues south along CR L20. The route travels east for 6 miles (9.7 km),[2] passing through Magnolia, after which it turns to the south towards Logan. The designation ends at US 30 in downtown Logan.[3]


Iowa Highway 127 originally went traveled between US 75 west of Magnolia, where it now meets Harrison CR L20, and US 30 in Logan. This intersection is now where it meets CR L20. In 1968, upon completion of I-29 west of Mondamin, US 75 was relocated onto I-29 and Iowa 127 was extended west to the interstate.[4]

Major intersections

The entire route is in Harrison County.

Mondamin0.0000.000 I-29 – Council Bluffs, Sioux City
Iowa 183 north – Pisgah
Magnolia5.6629.112 CR L20 (Loess Hills Scenic Byway) – Missouri ValleyFormer Iowa 183
Logan15.98525.725 US 30 – Woodbine, Missouri Valley
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b 2009 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2009. Retrieved July 31, 2010.
  2. ^ Highway and Transportation Map of Harrison County, Iowa (PDF) (Map). Iowa Department of Transportation. January 1, 2009. Retrieved July 31, 2010.
  3. ^ Iowa Department of Transportation (2010). State of Iowa Transportation Map (PDF) (Map). Ames: Iowa Department of Transportation. Retrieved July 31, 2010.
  4. ^ Iowa State Highway Commission (1969). State of Iowa Transportation Map (PDF) (Map). Ames: Iowa State Highway Commission. Retrieved July 31, 2010.