US Bridges

I-57 NB over Il 13

Fair

Williamson County, Illinois · S of Ncl Marion · Structure no. 100008800000000

Built
2013
12 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
410 ft
3 main spans
Daily traffic
14,300
2024 count
Owner
State
State Highway Agency

About this bridge

I-57 NB over Il 13 is a steel continuous stringer/multi-beam or girder carrying I-57 NB over Il 13 in Williamson County, Illinois. It was built in 2013, so it is 12 years old, younger 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 14,300 vehicles a day, roughly 51% of them trucks, projected to reach 15,655 by 2046. The structure is 410 ft (125 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-57 NB
CrossesIl 13
LocationS of Ncl Marion
RouteInterstate 57
Coordinates37.74052, -88.95803
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.6 US tons
Inventory rating57.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length410 ft (125 m)
Longest span210 ft (64 m)
Deck width64 ft (19.4 m)
Roadway width60 ft (18.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,300 (2024)
Projected traffic15,655 by 2046
Trucks51%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 Il 13 built?

It was built in 2013, making it 12 years old in 2025.

What condition is I-57 NB over Il 13 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 August 2023.

How much traffic does I-57 NB over Il 13 carry?

About 14,300 vehicles per day (2024 count), of which roughly 51% are trucks.

How long is I-57 NB over Il 13?

The structure is 410 ft (125 m) long with a longest span of 210 ft (64 m) and a deck 64 ft wide.

Who owns I-57 NB over Il 13?

It is owned by the State Highway Agency.