US Bridges

TR 390 over I-74/2 MI W of Leroy

Fair

McLean County, Illinois · 2 MI NW of Leroy · Structure no. 057013100000000

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

About this bridge

TR 390 over I-74/2 MI W of Leroy is a steel continuous stringer/multi-beam or girder carrying TR 390 over I-74/2 MI W of Leroy in McLean 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 3% of them trucks, projected to reach 76 by 2046. The structure is 281 ft (85.6 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTR 390
CrossesI-74/2 MI W of Leroy
Location2 MI NW of Leroy
RouteCounty Highway 0
CountyMcLean County
StateIllinois
Coordinates40.35948, -88.80991
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.7 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 15
Structure length281 ft (85.6 m)
Longest span117 ft (35.8 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2024)
Projected traffic76 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 390 over I-74/2 MI W of Leroy built?

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

What condition is TR 390 over I-74/2 MI W of Leroy 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 April 2024.

How much traffic does TR 390 over I-74/2 MI W of Leroy carry?

About 75 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is TR 390 over I-74/2 MI W of Leroy?

The structure is 281 ft (85.6 m) long with a longest span of 117 ft (35.8 m) and a deck 30 ft wide.

Who owns TR 390 over I-74/2 MI W of Leroy?

It is owned by the State Highway Agency.