US Bridges

NB Ia 5 & Ia 92 over Ia 14

Fair

Marion County, Iowa · At Jct. Iowa 14 · Structure no. 000000000603500

Built
1978
47 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
251 ft
3 main spans
Daily traffic
2,090
2022 count
Owner
State
State Highway Agency

About this bridge

NB Ia 5 & Ia 92 over Ia 14 is a steel continuous stringer/multi-beam or girder carrying NB Ia 5 & Ia 92 over Ia 14 in Marion County, Iowa. It was built in 1978, so it is 47 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 2,090 vehicles a day, roughly 12% of them trucks, projected to reach 2,090 by 2042. The structure is 251 ft (76.5 m) long and 43 ft wide.

Location

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CarriesNB Ia 5 & Ia 92
CrossesIa 14
LocationAt Jct. Iowa 14
RouteState Highway 5
CountyMarion County
StateIowa
Coordinates41.30377, -93.10901
Functional classUrban Other Principal 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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating62.4 US tons
Inventory rating34.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length251 ft (76.5 m)
Longest span118 ft (36 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,090 (2022)
Projected traffic2,090 by 2042
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 NB Ia 5 & Ia 92 over Ia 14 built?

It was built in 1978, making it 47 years old in 2025.

What condition is NB Ia 5 & Ia 92 over Ia 14 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 May 2023.

How much traffic does NB Ia 5 & Ia 92 over Ia 14 carry?

About 2,090 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is NB Ia 5 & Ia 92 over Ia 14?

The structure is 251 ft (76.5 m) long with a longest span of 118 ft (36 m) and a deck 43 ft wide.

Who owns NB Ia 5 & Ia 92 over Ia 14?

It is owned by the State Highway Agency.