Interstate 74 in Iowa
Interstate 74 or I -74 is an Interstate Highway in the U.S. state of Iowa. The highway forms a short north-south route through Davenport and Bettendorf in the Quad Cities region and is 9 kilometers long.
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The I-74 Bridge over the Mississippi River in Davenport (replaced in 2021).
I-74 runs between the towns of Davenport and Bettendorf. The highway begins at a trumpet interchange with Interstate 80 and then heads south in 2×2 lanes through built-up areas. The highway has several connections connecting both Davenport and Bettendorf, then follows the I-74 Bridge over the Mississippi River, on the border with the state of Illinois. Interstate 74 in Illinois then continues through Moline toward Peoria.
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I-74 was part of Iowa’s original highway plan from 1955. The highway did not start immediately, because the traffic problems were not that big, and they first wanted to build I-80 between Des Moines and Davenport. Already in 1935 the first bridge opened at Bettendorf over the Mississippi River, this was a toll bridge at the time. A second span was built in 1959 to increase capacity, as there was already a lot of traffic between Bettendorf and Moline in the 1950s. The first section of the highway opened in 1968 from I-80 to US 6. In 1971, the center section opened through Bettendorf, and in the early 1970s, the existing bridge was upgraded to Interstate Highway. The final link also included the conversion of a few intersections into grade-separated connections. This was completed in 1974.
The I-74 Bridge over the Mississippi River at Davenport was replaced between 2017 and 2021. The suspension bridges from 1935 and 1960 have been replaced by two arch bridges with 2×4 lanes. Construction of the first new span has been awarded for $322 million and opened to traffic on November 13, 2020. On December 1, 2021, the entire project was officially handed over. The opening of the second bridge followed a few days later.
|exit 0||Exit 2||3 km||30-08-1968|
|Exit 2||Exit 3||2 km||00-00-1971|
|Exit 3||Exit 4||2 km||26-11-1974|
|Exit 1 53rd Street||34,300|
|Exit 2 Davenport||49,600|
|Exit 3 Middle Road||58,000|
|Exit 4 Davenport||70,000|
Interstate 880 in Iowa
Interstate 880 or I -880 is an Interstate Highway in the U.S. state of Iowa. The highway forms an east-west route in the western part of the state, between Loveland and Minden, northeast of Council Bluffs. I-880 is 16 miles long.
I-880 begins at a trumpet interchange with Interstate 29 at the hamlet of Loveland, in the Missouri River valley. The highway is 2×2 lanes and heads east through sparsely populated rural areas, rising slightly out of the Missouri River valley. I-880 then ends 16 miles (26 km) east at an interchange with Interstate 80, continuing east to Des Moines.
The highway was originally constructed as part of the bypass of Omaha, a city in Nebraska. The segment between I-29 and I-80 opened to traffic in 1966 and was originally numbered I-80N. In 1973, this was changed to I-680, which ran west from Omaha to Minden.
The numbering of I-680 was found illogical due to the relatively long double numbering with I-29 north of Council Bluffs and the different nature of both parts, the part around Omaha is a city bypass while the part from Loveland to Minden is a rural highway used to be. Little traffic used the entirety of I-680 to bypass Omaha. In 2019, it was decided to renumber the easternmost section of I-680 between Loveland and Minden as I-880, which the AASHTO approved in October 2019.
|exit 13||Exit 29||26 km||13-12-1966|
Only 6,000 vehicles use I-880 daily.