US Bridges

I-57(NB) over Norfolk Southern Railway

Fair

Champaign County, Illinois · SW of Tolono · Structure no. 010000200000000

Built
1963
62 years old, rebuilt 2002
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
149 ft
3 main spans
Daily traffic
11,550
2023 count
Owner
State
State Highway Agency

About this bridge

I-57(NB) over Norfolk Southern Railway is a steel continuous stringer/multi-beam or girder carrying I-57(NB) over Norfolk Southern Railway in Champaign County, Illinois. It was built in 1963 and reconstructed in 2002, so it is 62 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 5 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 11,550 vehicles a day, roughly 39% of them trucks, projected to reach 13,029 by 2046. The structure is 149 ft (45.3 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-57(NB)
CrossesNorfolk Southern Railway
LocationSW of Tolono
RouteInterstate 57
CountyChampaign County
StateIllinois
Coordinates39.97526, -88.30337
Functional classRural Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length149 ft (45.3 m)
Longest span53 ft (16.2 m)
Deck width45 ft (13.6 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,550 (2023)
Projected traffic13,029 by 2046
Trucks39%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 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(NB) over Norfolk Southern Railway built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2002.

What condition is I-57(NB) over Norfolk Southern Railway 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 I-57(NB) over Norfolk Southern Railway carry?

About 11,550 vehicles per day (2023 count), of which roughly 39% are trucks.

How long is I-57(NB) over Norfolk Southern Railway?

The structure is 149 ft (45.3 m) long with a longest span of 53 ft (16.2 m) and a deck 45 ft wide.

Who owns I-57(NB) over Norfolk Southern Railway?

It is owned by the State Highway Agency.