Roads of the Mid-South & West > Highways of the State of Iowa > Interstate 74, Iowa

Interstate 74

Interstate 74 is a north-south highway in Iowa. This highway forms the middle expressway artery in the Quad-Cities. I-74 enters Iowa from Illinois at Bettendorf and ends at Interstate 80 in Davenport.

Interstate 74 has recieved $67.4 million in federal funding to replace the twin-spans over the Mississippi River in the Quad Cities. In 2002 it was estimated that it would cost $650 million to replace the bridges. The first span was constructed in 1935 by the WPA. Span two was built in 1959. Landmark status was considored in 1999, but it woul cost $3 million a year to maintain the old bridges. The new bridge could have three lanes in each directions, a viewing platform, and a pedestrian trail.*
Photos of the I-74 Mississippi River Birdge Construction


The Iowa welcome sign on the I-74 Bridge over the Mississippi River.


Interstate 74 crosses the following Interstate in Iowa.

Interstate 80 at Davenport

WB I-80 at I-74 in Davenport

A BGS on WB I-74 for I-80. (August, 2010)

WB I-74 near I-80. (August, 2010)

WB I-74 at I-80. (August, 2010)

A BGS for I-80 on WB I-74. (September, 2020)

WB I-74 near I-80. (September, 2020)

WB I-74 at I-80. (September, 2020)


The I-74 Bridge over the Mississippi River from Bettendorf, IA to Moline, IL. Photo taken from riverwalk along U.S. Rt. 67 in Davenport, IA

EB I-74 near the Mississippi River

I-74 Bridge looking south from Kimberly Road and Grant Street in Bettendorf, IA.

EB I-74 near the I-74 Bridge at the Mississippi River

WB I-74/U.S. Rt. 6 on the Illinois banks of the Mississippi River Bridge. (August, 2010)

WB I-74/U.S. Rt. 6 at the Iowa Welcome Sign. (August, 2010)

WB I-74/U.S. Rt. 6 at the south tower of the Mississippi River Bridge. (August, 2010)

WB I-74/U.S. Rt. 6 at the north tower of the Mississippi River Bridge. (August, 2010)

WB I-74/U.S. Rt. 6 at the Iowa banks of the Mississippi River Bridge. (August, 2010)

Interstate 74 is multi-plexed in Iowa.

I-74 is multi-plexed...

...U.S. Rt. 6, from the Illinois/Iowa State Line to M.P. 2 Spruce Road in Davenport.


There are no branches of I-74 in Iowa


A junction marker on NB U.S. Rt. 67.

A guide marker along U.S. Rt. 67.

A guide marker on a ramp from WB I-74/U.S. Rt. 6.

Signage for I-74 (On Bridge) on Kimberly Road in Bettendorf, IA

WB I-74/U.S. Rt. 6 near Lincoln Road in Bettendorf.

WB I-74/U.S. Rt. 6 at Middle Road.

A junction marker on EB Middle Road.

A guide marker on EB Middle Road.

WB I-74/U.S. Rt. 6 north of Middle Road.

WB I-74 at Spring Hill Drive.

WB I-74 north of Spring Hill Drive.

A junction marker on EB U.S. Rt. 6.

A BGS on EB U.S. Rt. 6.

A guide marker on EB U.S. Rt. 6.

A BGS on EB U.S. Rt. 6.

WB I-74 near 53rd Street in Bettendorf.

EB I-74 near 53rd Street.

A set of guide markers on 53rd Street.

EB I-74 south of I-80.

EB I-74 south of I-80.

EB I-74 leaving I-80 in Davenport

Northern (or western) end of I-74 at I-80 in Davenport. Iowa is real good on marking the end of interstates.

WB I-74 spliting to merge with I-80 at Davenport.

BGS on EB I-80 for I-74. Due to construction on the Illinois side, I-74 is actually detoured on to local street. This being, most traffic is encouraged to stay on I-80 to by-pass the downtown areas. (April 2003)

A BGS on EB I-80.

A BGS on EB I-80.

A BGS on WB I-80.

*"Aging I-74 bridge gets federal funding for replacement" Belleville News-Democrat Belleville, IL August, 2005

4 November 2020