US Bridges

I29 SB to I480 WB over Frontage WB Broadway

Good

Pottawattamie County, Iowa · 0.6 M E of the Mo River · Structure no. 000000000700990

Built
2023
2 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
960 ft
6 main spans
Daily traffic
5,100
2022 count
Owner
State
State Highway Agency

About this bridge

I29 SB to I480 WB over Frontage WB Broadway is a steel continuous stringer/multi-beam or girder carrying I29 SB to I480 WB over Frontage WB Broadway in Pottawattamie County, Iowa. It was built in 2023, so it is 2 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 5,100 vehicles a day, roughly 15% of them trucks, projected to reach 5,100 by 2044. The structure is 960 ft (292.6 m) long and 35 ft wide.

CarriesI29 SB to I480 WB
CrossesFrontage WB Broadway
Location0.6 M E of the Mo River
RouteInterstate 29
StateIowa
Coordinates41.26366, -95.90956
Functional classRural 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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating42.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHL 93
Structure length960 ft (292.6 m)
Longest span195 ft (59.4 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,100 (2022)
Projected traffic5,100 by 2044
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 SB to I480 WB over Frontage WB Broadway built?

It was built in 2023, making it 2 years old in 2025.

What condition is I29 SB to I480 WB over Frontage WB Broadway 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 January 2024.

How much traffic does I29 SB to I480 WB over Frontage WB Broadway carry?

About 5,100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is I29 SB to I480 WB over Frontage WB Broadway?

The structure is 960 ft (292.6 m) long with a longest span of 195 ft (59.4 m) and a deck 35 ft wide.

Who owns I29 SB to I480 WB over Frontage WB Broadway?

It is owned by the State Highway Agency.