US Bridges

I-74 WB over Johnson Fk/Johnson Fk RD

Fair

Dearborn County, Indiana · 01.23 E US 52 · Structure no. 045400

Built
1960
65 years old, rebuilt 2015
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
227 ft
4 main spans
Daily traffic
18,929
2021 count
Owner
State
State Highway Agency

About this bridge

I-74 WB over Johnson Fk/Johnson Fk RD is a steel continuous stringer/multi-beam or girder carrying I-74 WB over Johnson Fk/Johnson Fk RD in Dearborn County, Indiana. It was built in 1960 and reconstructed in 2015, so it is 65 years old, older than the Indiana average of 46.6 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 18,929 vehicles a day, roughly 29% of them trucks, projected to reach 22,264 by 2031. The structure is 227 ft (69.1 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-74 WB
CrossesJohnson Fk/Johnson Fk RD
Location01.23 E US 52
RouteInterstate 74
CountyDearborn County
StateIndiana
Coordinates39.27976, -84.83886
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length227 ft (69.1 m)
Longest span69 ft (21.1 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,929 (2021)
Projected traffic22,264 by 2031
Trucks29%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed0.6 mi (1 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-74 WB over Johnson Fk/Johnson Fk RD built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2015.

What condition is I-74 WB over Johnson Fk/Johnson Fk 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 2024.

How much traffic does I-74 WB over Johnson Fk/Johnson Fk RD carry?

About 18,929 vehicles per day (2021 count), of which roughly 29% are trucks.

How long is I-74 WB over Johnson Fk/Johnson Fk RD?

The structure is 227 ft (69.1 m) long with a longest span of 69 ft (21.1 m) and a deck 42 ft wide.

Who owns I-74 WB over Johnson Fk/Johnson Fk RD?

It is owned by the State Highway Agency.