US Bridges

FAS 331 over I-74

Fair

Vermilion County, Illinois · 0.5 MI N of Oakwood · Structure no. 092007500000000

Built
1960
65 years old, rebuilt 1989
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
186 ft
4 main spans
Daily traffic
4,900
2024 count
Owner
State
State Highway Agency

About this bridge

FAS 331 over I-74 is a prestressed concrete stringer/multi-beam or girder carrying FAS 331 over I-74 in Vermilion County, Illinois. It was built in 1960 and reconstructed in 1989, so it is 65 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 5 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 4,900 vehicles a day, roughly 28% of them trucks, projected to reach 4,242 by 2046. The structure is 186 ft (56.6 m) long and 35 ft wide.

Location

Open in Google Maps
CarriesFAS 331
CrossesI-74
Location0.5 MI N of Oakwood
RouteCounty Highway 0
CountyVermilion County
StateIllinois
Coordinates40.12663, -87.77833
Functional classRural Minor Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating36.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length186 ft (56.6 m)
Longest span56 ft (17.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,900 (2024)
Projected traffic4,242 by 2046
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 FAS 331 over I-74 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1989.

What condition is FAS 331 over I-74 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 January 2024.

How much traffic does FAS 331 over I-74 carry?

About 4,900 vehicles per day (2024 count), of which roughly 28% are trucks.

How long is FAS 331 over I-74?

The structure is 186 ft (56.6 m) long with a longest span of 56 ft (17.1 m) and a deck 35 ft wide.

Who owns FAS 331 over I-74?

It is owned by the State Highway Agency.