US Bridges

I-74/WB over Norfolk Southern Railway

Fair

McLean County, Illinois · 12.3 MI E of Ill 117 · Structure no. 057004500000000

Built
1964
61 years old, rebuilt 1998
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
233 ft
3 main spans
Daily traffic
14,800
2023 count
Owner
State
State Highway Agency

About this bridge

I-74/WB over Norfolk Southern Railway is a steel continuous stringer/multi-beam or girder carrying I-74/WB over Norfolk Southern Railway in McLean County, Illinois. It was built in 1964 and reconstructed in 1998, so it is 61 years old, older than the Illinois average of 45.3 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 14,800 vehicles a day, roughly 18% of them trucks, projected to reach 14,800 by 2046. The structure is 233 ft (71 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-74/WB
CrossesNorfolk Southern Railway
Location12.3 MI E of Ill 117
RouteInterstate 74
CountyMcLean County
StateIllinois
Coordinates40.54015, -89.07259
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.8 US tons
Inventory rating55.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length233 ft (71 m)
Longest span89 ft (27 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,800 (2023)
Projected traffic14,800 by 2046
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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-74/WB over Norfolk Southern Railway built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1998.

What condition is I-74/WB over Norfolk Southern Railway 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 December 2023.

How much traffic does I-74/WB over Norfolk Southern Railway carry?

About 14,800 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is I-74/WB over Norfolk Southern Railway?

The structure is 233 ft (71 m) long with a longest span of 89 ft (27 m) and a deck 43 ft wide.

Who owns I-74/WB over Norfolk Southern Railway?

It is owned by the State Highway Agency.