US Bridges

I-74 EB over US 51/S.OF Bloomngtn

Fair

McLean County, Illinois · US 51 Interchange · Structure no. 057004700000000

Built
1963
62 years old, rebuilt 1991
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
181 ft
4 main spans
Daily traffic
9,500
2023 count
Owner
State
State Highway Agency

About this bridge

I-74 EB over US 51/S.OF Bloomngtn is a steel continuous stringer/multi-beam or girder carrying I-74 EB over US 51/S.OF Bloomngtn in McLean County, Illinois. It was built in 1963 and reconstructed in 1991, so it is 62 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 9,500 vehicles a day, roughly 38% of them trucks, projected to reach 9,242 by 2046. The structure is 181 ft (55.2 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-74 EB
CrossesUS 51/S.OF Bloomngtn
LocationUS 51 Interchange
RouteInterstate 74
Coordinates40.43591, -88.99081
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length181 ft (55.2 m)
Longest span46 ft (14.1 m)
Deck width52 ft (16 m)
Roadway width49 ft (15 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,500 (2023)
Projected traffic9,242 by 2046
Trucks38%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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 EB over US 51/S.OF Bloomngtn built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1991.

What condition is I-74 EB over US 51/S.OF Bloomngtn 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 March 2024.

How much traffic does I-74 EB over US 51/S.OF Bloomngtn carry?

About 9,500 vehicles per day (2023 count), of which roughly 38% are trucks.

How long is I-74 EB over US 51/S.OF Bloomngtn?

The structure is 181 ft (55.2 m) long with a longest span of 46 ft (14.1 m) and a deck 52 ft wide.

Who owns I-74 EB over US 51/S.OF Bloomngtn?

It is owned by the State Highway Agency.