US Bridges

I-55/I-74 SB over Wash.St/Fau 6360

Fair

McLean County, Illinois · 0.4 MI S of Ill Rt 9 · Structure no. 057001700000000

Built
1962
63 years old, rebuilt 2001
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
183 ft
3 main spans
Daily traffic
21,550
2023 count
Owner
State
State Highway Agency

About this bridge

I-55/I-74 SB over Wash.St/Fau 6360 is a steel continuous stringer/multi-beam or girder carrying I-55/I-74 SB over Wash.St/Fau 6360 in McLean County, Illinois. It was built in 1962 and reconstructed in 2001, so it is 63 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 21,550 vehicles a day, roughly 37% of them trucks, projected to reach 22,422 by 2046. The structure is 183 ft (55.9 m) long and 72 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-55/I-74 SB
CrossesWash.St/Fau 6360
Location0.4 MI S of Ill Rt 9
RouteInterstate 55
CountyMcLean County
StateIllinois
Coordinates40.47907, -89.02873
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 rating98.2 US tons
Inventory rating87.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length183 ft (55.9 m)
Longest span69 ft (21 m)
Deck width72 ft (22 m)
Roadway width69 ft (21.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,550 (2023)
Projected traffic22,422 by 2046
Trucks37%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-55/I-74 SB over Wash.St/Fau 6360 built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2001.

What condition is I-55/I-74 SB over Wash.St/Fau 6360 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 April 2024.

How much traffic does I-55/I-74 SB over Wash.St/Fau 6360 carry?

About 21,550 vehicles per day (2023 count), of which roughly 37% are trucks.

How long is I-55/I-74 SB over Wash.St/Fau 6360?

The structure is 183 ft (55.9 m) long with a longest span of 69 ft (21 m) and a deck 72 ft wide.

Who owns I-55/I-74 SB over Wash.St/Fau 6360?

It is owned by the State Highway Agency.