US Bridges

Ia 14 over Ia Nr RR

Fair

Butler County, Iowa · 1.1 Mi. N of S.R. C13 · Structure no. 000000000016710

Built
1936
89 years old, rebuilt 1967
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
137 ft
3 main spans
Daily traffic
1,500
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 14 over Ia Nr RR is a concrete continuous slab carrying Ia 14 over Ia Nr RR in Butler County, Iowa. It was built in 1936 and reconstructed in 1967, so it is 89 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 6 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 1,500 vehicles a day, roughly 12% of them trucks, projected to reach 1,500 by 2044. The structure is 137 ft (41.8 m) long and 36 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesIa 14
CrossesIa Nr RR
Location1.1 Mi. N of S.R. C13
RouteState Highway 14
CountyButler County
StateIowa
Coordinates42.90537, -92.81078
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating67.4 US tons
Inventory rating40.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length137 ft (41.8 m)
Longest span54 ft (16.5 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2022)
Projected traffic1,500 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

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 14 over Ia Nr RR built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1967.

What condition is Ia 14 over Ia Nr 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 14 over Ia Nr RR carry?

About 1,500 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is Ia 14 over Ia Nr RR?

The structure is 137 ft (41.8 m) long with a longest span of 54 ft (16.5 m) and a deck 36 ft wide.

Who owns Ia 14 over Ia Nr RR?

It is owned by the State Highway Agency.