US Bridges

TR 146 over I-57

Fair

Champaign County, Illinois · 2 MI N Champaign · Structure no. 010017100000000

Built
1967
58 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
257 ft
4 main spans
Daily traffic
675
2021 count
Owner
State
State Highway Agency

About this bridge

TR 146 over I-57 is a steel continuous stringer/multi-beam or girder carrying TR 146 over I-57 in Champaign County, Illinois. It was built in 1967, so it is 58 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 675 vehicles a day, roughly 2% of them trucks, projected to reach 682 by 2046. The structure is 257 ft (78.4 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 146
CrossesI-57
Location2 MI N Champaign
RouteCounty Highway 0
CountyChampaign County
StateIllinois
Coordinates40.16941, -88.25786
Functional classRural Minor Collector

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.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.6 US tons
Inventory rating27.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length257 ft (78.4 m)
Longest span79 ft (24 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic675 (2021)
Projected traffic682 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 146 over I-57 built?

It was built in 1967, making it 58 years old in 2025.

What condition is TR 146 over I-57 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 September 2023.

How much traffic does TR 146 over I-57 carry?

About 675 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is TR 146 over I-57?

The structure is 257 ft (78.4 m) long with a longest span of 79 ft (24 m) and a deck 30 ft wide.

Who owns TR 146 over I-57?

It is owned by the State Highway Agency.