US Bridges

Ch 21(FAS 497) over Middle Fk Verm Riv

Fair

Vermilion County, Illinois · 2.0 MI NE Collison · Structure no. 092335500000000

Built
1986
39 years old
Condition
Fair
inspected February 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
224 ft
3 main spans
Daily traffic
275
2023 count
Owner
County
County Highway Agency

About this bridge

Ch 21(FAS 497) over Middle Fk Verm Riv is a prestressed concrete box beam or girders - multiple carrying Ch 21(FAS 497) over Middle Fk Verm Riv in Vermilion County, Illinois. It was built in 1986, so it is 39 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 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 275 vehicles a day, roughly 6% of them trucks, projected to reach 253 by 2046. The structure is 224 ft (68.2 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesCh 21(FAS 497)
CrossesMiddle Fk Verm Riv
Location2.0 MI NE Collison
RouteCounty Highway 0
CountyVermilion County
StateIllinois
Coordinates40.2352, -87.77184
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length224 ft (68.2 m)
Longest span80 ft (24.4 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2023)
Projected traffic253 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ch 21(FAS 497) over Middle Fk Verm Riv built?

It was built in 1986, making it 39 years old in 2025.

What condition is Ch 21(FAS 497) over Middle Fk Verm Riv 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 2023.

How much traffic does Ch 21(FAS 497) over Middle Fk Verm Riv carry?

About 275 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Ch 21(FAS 497) over Middle Fk Verm Riv?

The structure is 224 ft (68.2 m) long with a longest span of 80 ft (24.4 m) and a deck 30 ft wide.

Who owns Ch 21(FAS 497) over Middle Fk Verm Riv?

It is owned by the County Highway Agency.