US Bridges

I-55 over Trib of Turkey CR

Good

McLean County, Illinois · 1.5 MI NW Lexington · Structure no. 057200500000000

Built
1974
51 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
23,400
2023 count
Owner
State
State Highway Agency

About this bridge

I-55 over Trib of Turkey CR is a concrete continuous culvert carrying I-55 over Trib of Turkey CR in McLean County, Illinois. It was built in 1974, so it is 51 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 23,400 vehicles a day, roughly 33% of them trucks, projected to reach 22,220 by 2046. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI-55
CrossesTrib of Turkey CR
Location1.5 MI NW Lexington
RouteInterstate 55
Coordinates40.65478, -88.80255
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length23 ft (6.9 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,400 (2023)
Projected traffic22,220 by 2046
Trucks33%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-55 over Trib of Turkey CR built?

It was built in 1974, making it 51 years old in 2025.

What condition is I-55 over Trib of Turkey CR 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 June 2023.

How much traffic does I-55 over Trib of Turkey CR carry?

About 23,400 vehicles per day (2023 count), of which roughly 33% are trucks.

How long is I-55 over Trib of Turkey CR?

The structure is 23 ft (6.9 m) long with a longest span of 11 ft (3.4 m).

Who owns I-55 over Trib of Turkey CR?

It is owned by the State Highway Agency.