US Bridges

TR 140 Central Hil over Interstate 24

Fair

Johnson County, Illinois · 9 MI S E of Vienna · Structure no. 044005100000000

Built
1970
55 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
252 ft
2 main spans
Daily traffic
75
2021 count
Owner
State
State Highway Agency

About this bridge

TR 140 Central Hil over Interstate 24 is a steel continuous stringer/multi-beam or girder carrying TR 140 Central Hil over Interstate 24 in Johnson County, Illinois. It was built in 1970, so it is 55 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 6 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 75 vehicles a day, roughly 13% of them trucks, projected to reach 79 by 2046. The structure is 252 ft (76.7 m) long and 30 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesTR 140 Central Hil
CrossesInterstate 24
Location9 MI S E of Vienna
RouteCounty Highway 0
CountyJohnson County
StateIllinois
Coordinates37.35507, -88.7898
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 15
Structure length252 ft (76.7 m)
Longest span95 ft (29 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2021)
Projected traffic79 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed14.9 mi (24 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was TR 140 Central Hil over Interstate 24 built?

It was built in 1970, making it 55 years old in 2025.

What condition is TR 140 Central Hil over Interstate 24 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 2024.

How much traffic does TR 140 Central Hil over Interstate 24 carry?

About 75 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is TR 140 Central Hil over Interstate 24?

The structure is 252 ft (76.7 m) long with a longest span of 95 ft (29 m) and a deck 30 ft wide.

Who owns TR 140 Central Hil over Interstate 24?

It is owned by the State Highway Agency.