US Bridges

I 29 NB over Over Aband RR & Lcl RD

Fair

Fremont County, Iowa · 1.6 Mi. S of Ia 2 · Structure no. 000000000600070

Built
1972
53 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
302 ft
4 main spans
Daily traffic
7,850
2022 count
Owner
State
State Highway Agency

About this bridge

I 29 NB over Over Aband RR & Lcl RD is a steel continuous stringer/multi-beam or girder carrying I 29 NB over Over Aband RR & Lcl RD in Fremont County, Iowa. It was built in 1972, so it is 53 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 7,850 vehicles a day, roughly 37% of them trucks, projected to reach 7,850 by 2043. The structure is 302 ft (92.1 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 29 NB
CrossesOver Aband RR & Lcl RD
Location1.6 Mi. S of Ia 2
RouteInterstate 29
CountyFremont County
StateIowa
Coordinates40.6688, -95.765
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating38.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length302 ft (92.1 m)
Longest span83 ft (25.3 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,850 (2022)
Projected traffic7,850 by 2043
Trucks37%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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 I 29 NB over Over Aband RR & Lcl RD built?

It was built in 1972, making it 53 years old in 2025.

What condition is I 29 NB over Over Aband RR & Lcl RD in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does I 29 NB over Over Aband RR & Lcl RD carry?

About 7,850 vehicles per day (2022 count), of which roughly 37% are trucks.

How long is I 29 NB over Over Aband RR & Lcl RD?

The structure is 302 ft (92.1 m) long with a longest span of 83 ft (25.3 m) and a deck 43 ft wide.

Who owns I 29 NB over Over Aband RR & Lcl RD?

It is owned by the State Highway Agency.