US Bridges

I 24 EB over Little Cache Creek

Good

Johnson County, Illinois · 0.6 MI N. of Ill 146 · Structure no. 044004600000000

Built
1971
54 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
168 ft
4 main spans
Daily traffic
10,000
2024 count
Owner
State
State Highway Agency

About this bridge

I 24 EB over Little Cache Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying I 24 EB over Little Cache Creek in Johnson County, Illinois. It was built in 1971, so it is 54 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 10,000 vehicles a day, roughly 37% of them trucks, projected to reach 11,025 by 2046. The structure is 168 ft (51.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 24 EB
CrossesLittle Cache Creek
Location0.6 MI N. of Ill 146
RouteInterstate 24
Coordinates37.42379, -88.87465
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating69.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length168 ft (51.3 m)
Longest span41 ft (12.6 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2024)
Projected traffic11,025 by 2046
Trucks37%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 24 EB over Little Cache Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is I 24 EB over Little Cache Creek 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 24 EB over Little Cache Creek carry?

About 10,000 vehicles per day (2024 count), of which roughly 37% are trucks.

How long is I 24 EB over Little Cache Creek?

The structure is 168 ft (51.3 m) long with a longest span of 41 ft (12.6 m) and a deck 42 ft wide.

Who owns I 24 EB over Little Cache Creek?

It is owned by the State Highway Agency.