US Bridges

I-55/I-74 NB over Six Pts Rd/Fau 6369

Fair

McLean County, Illinois · 1.9 MI S JCT Ill 9 · Structure no. 057000800000000

Built
1963
62 years old, rebuilt 1996
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
130 ft
3 main spans
Daily traffic
21,550
2023 count
Owner
State
State Highway Agency

About this bridge

I-55/I-74 NB over Six Pts Rd/Fau 6369 is a steel continuous stringer/multi-beam or girder carrying I-55/I-74 NB over Six Pts Rd/Fau 6369 in McLean County, Illinois. It was built in 1963 and reconstructed in 1996, 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 21,550 vehicles a day, roughly 37% of them trucks, projected to reach 22,422 by 2046. The structure is 130 ft (39.6 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-55/I-74 NB
CrossesSix Pts Rd/Fau 6369
Location1.9 MI S JCT Ill 9
RouteInterstate 55
CountyMcLean County
StateIllinois
Coordinates40.45875, -89.02721
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
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 rating107.1 US tons
Inventory rating60 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length130 ft (39.6 m)
Longest span50 ft (15.3 m)
Deck width66 ft (20 m)
Roadway width63 ft (19.1 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-55/I-74 NB over Six Pts Rd/Fau 6369 built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1996.

What condition is I-55/I-74 NB over Six Pts Rd/Fau 6369 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 February 2025.

How much traffic does I-55/I-74 NB over Six Pts Rd/Fau 6369 carry?

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

How long is I-55/I-74 NB over Six Pts Rd/Fau 6369?

The structure is 130 ft (39.6 m) long with a longest span of 50 ft (15.3 m) and a deck 66 ft wide.

Who owns I-55/I-74 NB over Six Pts Rd/Fau 6369?

It is owned by the State Highway Agency.