US Bridges

Ia 3 over Over Ianr RR

Fair

Butler County, Iowa · 1.7 Miles E of JCT Ia 188 · Structure no. 000000000016550

Built
1967
58 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
200 ft
3 main spans
Daily traffic
3,540
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 3 over Over Ianr RR is a steel continuous stringer/multi-beam or girder carrying Ia 3 over Over Ianr RR in Butler County, Iowa. It was built in 1967, so it is 58 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 3,540 vehicles a day, roughly 11% of them trucks, projected to reach 3,540 by 2044. The structure is 200 ft (61 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIa 3
CrossesOver Ianr RR
Location1.7 Miles E of JCT Ia 188
RouteState Highway 3
CountyButler County
StateIowa
Coordinates42.74477, -92.62894
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length200 ft (61 m)
Longest span76 ft (23.2 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,540 (2022)
Projected traffic3,540 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 Ia 3 over Over Ianr RR built?

It was built in 1967, making it 58 years old in 2025.

What condition is Ia 3 over Over Ianr RR 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 September 2024.

How much traffic does Ia 3 over Over Ianr RR carry?

About 3,540 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Ia 3 over Over Ianr RR?

The structure is 200 ft (61 m) long with a longest span of 76 ft (23.2 m) and a deck 35 ft wide.

Who owns Ia 3 over Over Ianr RR?

It is owned by the State Highway Agency.