US Bridges

FAS 319 CH8 over Trib Vermilion River

Fair

Iroquois County, Illinois · 2.5MI N SBI116 ONCH8 · Structure no. 038480600000000

Built
1940
85 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
27 ft
1 main span
Daily traffic
350
2022 count
Owner
County
County Highway Agency

About this bridge

FAS 319 CH8 over Trib Vermilion River is a steel stringer/multi-beam or girder carrying FAS 319 CH8 over Trib Vermilion River in Iroquois County, Illinois. It was built in 1940, so it is 85 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 350 vehicles a day, roughly 14% of them trucks, projected to reach 404 by 2046. The structure is 27 ft (8.2 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFAS 319 CH8
CrossesTrib Vermilion River
Location2.5MI N SBI116 ONCH8
RouteCounty Highway 0
CountyIroquois County
StateIllinois
Coordinates40.91773, -88.09247
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating36.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2022)
Projected traffic404 by 2046
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 FAS 319 CH8 over Trib Vermilion River built?

It was built in 1940, making it 85 years old in 2025.

What condition is FAS 319 CH8 over Trib Vermilion River 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 July 2023.

How much traffic does FAS 319 CH8 over Trib Vermilion River carry?

About 350 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is FAS 319 CH8 over Trib Vermilion River?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m) and a deck 25 ft wide.

Who owns FAS 319 CH8 over Trib Vermilion River?

It is owned by the County Highway Agency.