US Bridges

FAS 331(CH 10) over Salt Fork

Fair

Vermilion County, Illinois · 2.25 MI S Oakwood · Structure no. 092017700000000

Built
1980
45 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
399 ft
3 main spans
Daily traffic
2,400
2024 count
Owner
State
State Highway Agency

About this bridge

FAS 331(CH 10) over Salt Fork is a steel continuous stringer/multi-beam or girder carrying FAS 331(CH 10) over Salt Fork in Vermilion County, Illinois. It was built in 1980, so it is 45 years old, younger 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 2,400 vehicles a day, roughly 10% of them trucks, projected to reach 2,121 by 2046. The structure is 399 ft (121.6 m) long and 33 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

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CarriesFAS 331(CH 10)
CrossesSalt Fork
Location2.25 MI S Oakwood
RouteCounty Highway 0
CountyVermilion County
StateIllinois
Coordinates40.08318, -87.78041
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length399 ft (121.6 m)
Longest span161 ft (49.1 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2024)
Projected traffic2,121 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 331(CH 10) over Salt Fork built?

It was built in 1980, making it 45 years old in 2025.

What condition is FAS 331(CH 10) over Salt Fork 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 2025.

How much traffic does FAS 331(CH 10) over Salt Fork carry?

About 2,400 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is FAS 331(CH 10) over Salt Fork?

The structure is 399 ft (121.6 m) long with a longest span of 161 ft (49.1 m) and a deck 33 ft wide.

Who owns FAS 331(CH 10) over Salt Fork?

It is owned by the State Highway Agency.