Category Archives: Construction

Nov 30

Iowa’s first diverging diamond interchange opens Tuesday

The I-80 interchange at Alice’s Road Grand Prairie Parkway between Waukee and West Des Moines is scheduled to open Dec. 1, the Des Moines Register reports. The interchange is a diverging diamond, where traffic temporarily runs on the left side … Continue reading

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Nov 17

Correctionville construction update

The Sioux City Journal reports that construction on US 20 is on track in Woodbury County. Trees have been removed in the Little Sioux River valley to make way for the new bridge that will be built next year. Traffic … Continue reading

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Nov 12

Bedrock impedes Bettendorf I-74 construction

The Quad-City Times has a construction update on I-74, which is a little behind schedule from unexpectedly tough bedrock. Linked at the end of the story is a 6½-minute video from the Iowa DOT from January with a visual flyover … Continue reading

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Oct 23

IA 58 meeting in Cedar Falls Tuesday

A public hearing with a presentation about changing IA 58’s intersection with Viking Road into an interchange will be held Tuesday, the Waterloo-Cedar Falls Courier reports. The roadbed for current 58 will be lowered and a very tight SPUI constructed. … Continue reading

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Oct 21

US 61 Grandview construction update

Story from KWQC. If you watch carefully, you’ll see a few seconds of the street sign with “Co Rd 252” on it at the former west end of IA 252. That intersection will be on sort of a frontage road … Continue reading

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Oct 20

Package of 80/380 interchange plans available

After a meeting at the end of last month, the DOT released the set of plans for the complete reconstruction of the I-80/380 interchange from a cloverleaf into a sweeping interchange with flyover ramps. It’s broken into nine PDF maps. The … Continue reading

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Oct 15

Meeting on US 30 in Story County today

The Iowa DOT will hold a meeting with a formal presentation about upgrading US 30 between I-35 and Nevada in Ames today at 5. The plan is to close at-grade intersections, build interchanges just east of I-35 (with an all-new overpass … Continue reading

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Sep 25

More traffic in Morley?

The Iowa DOT plans to close IA 38 through Stanwood in two phases for construction. The official detour (PDF) runs 15 miles longer than 38 itself between Stanwood and Monticello and goes through Mount Vernon. The local enterprising driver (but not … Continue reading

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Sep 15

Bloomington Road bridge near Marion to be demolished

The 90-year-old truss bridge on a still-gravel Lincoln Highway loop in Linn County will be replaced, the Cedar Rapids Gazette reports. The bridge was not old enough to be an official part of Lincoln Highway (the Marion routing was changed … Continue reading

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Sep 05

IA 100 construction update

The Gazette had an article and photos this week about progress on the western extension of IA 100. The bridge for Covington Road (former IA 94) opened over the future freeway Wednesday. Construction is on schedule, and Edgewood Road should … Continue reading

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