US Bridges

Ill 17 over Vermilion River

Fair

Livingston County, Illinois · 1.3 M E JCT 17 & 23 · Structure no. 053002600000000

Built
1937
88 years old, rebuilt 1989
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
324 ft
3 main spans
Daily traffic
1,800
2021 count
Owner
State
State Highway Agency

About this bridge

Ill 17 over Vermilion River is a steel continuous stringer/multi-beam or girder carrying Ill 17 over Vermilion River in Livingston County, Illinois. It was built in 1937 and reconstructed in 1989, so it is 88 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 1,800 vehicles a day, roughly 7% of them trucks, projected to reach 1,818 by 2046. The structure is 324 ft (98.8 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIll 17
CrossesVermilion River
Location1.3 M E JCT 17 & 23
RouteState Highway 17
Coordinates41.06169, -88.80757
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.
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 above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating73.5 US tons
Inventory rating43.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length324 ft (98.8 m)
Longest span126 ft (38.4 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2021)
Projected traffic1,818 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ill 17 over Vermilion River built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1989.

What condition is Ill 17 over 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 February 2023.

How much traffic does Ill 17 over Vermilion River carry?

About 1,800 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Ill 17 over Vermilion River?

The structure is 324 ft (98.8 m) long with a longest span of 126 ft (38.4 m) and a deck 35 ft wide.

Who owns Ill 17 over Vermilion River?

It is owned by the State Highway Agency.