US Bridges

TR 58A over I 57

Fair

Iroquois County, Illinois · 1.17 MI S Gilman Int · Structure no. 038012900000000

Built
1967
58 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
344 ft
4 main spans
Daily traffic
900
2022 count
Owner
State
State Highway Agency

About this bridge

TR 58A over I 57 is a steel continuous stringer/multi-beam or girder carrying TR 58A over I 57 in Iroquois 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 900 vehicles a day, roughly 7% of them trucks, projected to reach 1,667 by 2046. The structure is 344 ft (104.9 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 58A
CrossesI 57
Location1.17 MI S Gilman Int
RouteCounty Highway 0
CountyIroquois County
StateIllinois
Coordinates40.73528, -88.01062
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
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 alignment8: Equal to present desirable criteria
Operating rating46.1 US tons
Inventory rating27.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length344 ft (104.9 m)
Longest span106 ft (32.3 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2022)
Projected traffic1,667 by 2046
Trucks7%
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 58A over I 57 built?

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

What condition is TR 58A 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 January 2024.

How much traffic does TR 58A over I 57 carry?

About 900 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is TR 58A over I 57?

The structure is 344 ft (104.9 m) long with a longest span of 106 ft (32.3 m) and a deck 30 ft wide.

Who owns TR 58A over I 57?

It is owned by the State Highway Agency.