US Bridges

TR 37 a over I-57

Fair

Champaign County, Illinois · 2.25 MI N US 136 · Structure no. 010016200000000

Built
1968
57 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
229 ft
4 main spans
Daily traffic
100
2021 count
Owner
State
State Highway Agency

About this bridge

TR 37 a over I-57 is a steel continuous stringer/multi-beam or girder carrying TR 37 a over I-57 in Champaign County, Illinois. It was built in 1968, so it is 57 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 100 vehicles a day, roughly 27% of them trucks, projected to reach 101 by 2046. The structure is 229 ft (69.9 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 37 a
CrossesI-57
Location2.25 MI N US 136
RouteCounty Highway 0
Coordinates40.34129, -88.16562
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.
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 geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.7 US tons
Inventory rating34 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length229 ft (69.9 m)
Longest span70 ft (21.2 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2021)
Projected traffic101 by 2046
Trucks27%
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 37 a over I-57 built?

It was built in 1968, making it 57 years old in 2025.

What condition is TR 37 a 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 37 a over I-57 carry?

About 100 vehicles per day (2021 count), of which roughly 27% are trucks.

How long is TR 37 a over I-57?

The structure is 229 ft (69.9 m) long with a longest span of 70 ft (21.2 m) and a deck 30 ft wide.

Who owns TR 37 a over I-57?

It is owned by the State Highway Agency.