US Bridges

I 24 EB over TR 42 & L Saline R

Fair

Johnson County, Illinois · 1.7 MI SE I-57 · Structure no. 044002900000000

Built
1972
53 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
700 ft
5 main spans
Daily traffic
10,350
2024 count
Owner
State
State Highway Agency

About this bridge

I 24 EB over TR 42 & L Saline R is a steel continuous stringer/multi-beam or girder carrying I 24 EB over TR 42 & L Saline R in Johnson County, Illinois. It was built in 1972, so it is 53 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 10,350 vehicles a day, roughly 36% of them trucks, projected to reach 12,075 by 2046. The structure is 700 ft (213.4 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 24 EB
CrossesTR 42 & L Saline R
Location1.7 MI SE I-57
RouteInterstate 24
Coordinates37.59383, -88.98454
Functional classRural Principal Arterial - Interstate

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.9 US tons
Inventory rating43.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length700 ft (213.4 m)
Longest span193 ft (58.8 m)
Deck width42 ft (12.7 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,350 (2024)
Projected traffic12,075 by 2046
Trucks36%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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 TR 42 & L Saline R built?

It was built in 1972, making it 53 years old in 2025.

What condition is I 24 EB over TR 42 & L Saline R 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 March 2024.

How much traffic does I 24 EB over TR 42 & L Saline R carry?

About 10,350 vehicles per day (2024 count), of which roughly 36% are trucks.

How long is I 24 EB over TR 42 & L Saline R?

The structure is 700 ft (213.4 m) long with a longest span of 193 ft (58.8 m) and a deck 42 ft wide.

Who owns I 24 EB over TR 42 & L Saline R?

It is owned by the State Highway Agency.