US Bridges

I-57 SB over Norfolk Southern Railway

Good

Jefferson County, Illinois · 0.25 MI N Dix Interchange · Structure no. 041011800000000

Built
2022
3 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
292 ft
3 main spans
Daily traffic
10,500
2024 count
Owner
State
State Highway Agency

About this bridge

I-57 SB over Norfolk Southern Railway is a steel continuous stringer/multi-beam or girder carrying I-57 SB over Norfolk Southern Railway in Jefferson County, Illinois. It was built in 2022, so it is 3 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,500 vehicles a day, roughly 43% of them trucks, projected to reach 32,000 by 2047. The structure is 292 ft (89 m) long and 45 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesI-57 SB
CrossesNorfolk Southern Railway
Location0.25 MI N Dix Interchange
RouteInterstate 57
CountyJefferson County
StateIllinois
Coordinates38.44334, -88.95346
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.1 US tons
Inventory rating54.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+3 approach)
Design loadHS 25 or greater
Structure length292 ft (89 m)
Longest span128 ft (39.1 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2024)
Projected traffic32,000 by 2047
Trucks43%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-57 SB over Norfolk Southern Railway built?

It was built in 2022, making it 3 years old in 2025.

What condition is I-57 SB over Norfolk Southern Railway in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2025.

How much traffic does I-57 SB over Norfolk Southern Railway carry?

About 10,500 vehicles per day (2024 count), of which roughly 43% are trucks.

How long is I-57 SB over Norfolk Southern Railway?

The structure is 292 ft (89 m) long with a longest span of 128 ft (39.1 m) and a deck 45 ft wide.

Who owns I-57 SB over Norfolk Southern Railway?

It is owned by the State Highway Agency.