US Bridges

I29 NB to I80 WB over I 29 NB

Good

Pottawattamie County, Iowa · E-W Connector · Structure no. 000000000700485

Built
2019
6 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
921 ft
5 main spans
Daily traffic
7,900
2022 count
Owner
State
State Highway Agency

About this bridge

I29 NB to I80 WB over I 29 NB is a steel continuous stringer/multi-beam or girder carrying I29 NB to I80 WB over I 29 NB in Pottawattamie County, Iowa. It was built in 2019, so it is 6 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,900 vehicles a day, roughly 27% of them trucks, projected to reach 7,900 by 2043. The structure is 921 ft (280.6 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI29 NB to I80 WB
CrossesI 29 NB
LocationE-W Connector
RouteInterstate 80
CountyPottawattamie County
StateIowa
Coordinates41.23359, -95.89484
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length921 ft (280.6 m)
Longest span238 ft (72.5 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deck21 ft (6.5 m)

Traffic and service

Average daily traffic7,900 (2022)
Projected traffic7,900 by 2043
Trucks27%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I29 NB to I80 WB over I 29 NB built?

It was built in 2019, making it 6 years old in 2025.

What condition is I29 NB to I80 WB over I 29 NB in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does I29 NB to I80 WB over I 29 NB carry?

About 7,900 vehicles per day (2022 count), of which roughly 27% are trucks.

How long is I29 NB to I80 WB over I 29 NB?

The structure is 921 ft (280.6 m) long with a longest span of 238 ft (72.5 m) and a deck 45 ft wide.

Who owns I29 NB to I80 WB over I 29 NB?

It is owned by the State Highway Agency.