US Bridges

Ch. 23 over Vermillion River

Good

LaSalle County, Illinois · E 651 N 2525 · Structure no. 050361700000000

Built
2017
8 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
399 ft
3 main spans
Daily traffic
900
2020 count
Owner
County
County Highway Agency

About this bridge

Ch. 23 over Vermillion River is a steel continuous stringer/multi-beam or girder carrying Ch. 23 over Vermillion River in LaSalle County, Illinois. It was built in 2017, so it is 8 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 900 vehicles a day, roughly 12% of them trucks, projected to reach 909 by 2046. The structure is 399 ft (121.6 m) long and 37 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCh. 23
CrossesVermillion River
LocationE 651 N 2525
RouteCounty Highway 0
CountyLaSalle County
StateIllinois
Coordinates41.30207, -89.03759
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating38.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length399 ft (121.6 m)
Longest span171 ft (52.1 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2020)
Projected traffic909 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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. 23 over Vermillion River built?

It was built in 2017, making it 8 years old in 2025.

What condition is Ch. 23 over Vermillion River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Ch. 23 over Vermillion River carry?

About 900 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is Ch. 23 over Vermillion River?

The structure is 399 ft (121.6 m) long with a longest span of 171 ft (52.1 m) and a deck 37 ft wide.

Who owns Ch. 23 over Vermillion River?

It is owned by the County Highway Agency.