US Bridges

I 57 NB & US 51 NB over FAS 2936 (unmarked)

Fair

Pulaski County, Illinois · Over FAS 2936 · Structure no. 077000100000000

Built
1967
58 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,013 ft
16 main spans
Daily traffic
5,950
2024 count
Owner
State
State Highway Agency

About this bridge

I 57 NB & US 51 NB over FAS 2936 (unmarked) is a prestressed concrete stringer/multi-beam or girder carrying I 57 NB & US 51 NB over FAS 2936 (unmarked) in Pulaski 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 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 5,950 vehicles a day, roughly 56% of them trucks, projected to reach 6,767 by 2046. The structure is 1,013 ft (308.8 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 57 NB & US 51 NB
CrossesFAS 2936 (unmarked)
LocationOver FAS 2936
RouteInterstate 57
CountyPulaski County
StateIllinois
Coordinates37.09812, -89.18792
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.5 US tons
Inventory rating48.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans16
Design loadHS 20 + Mod
Structure length1,013 ft (308.8 m)
Longest span65 ft (19.8 m)
Deck width36 ft (10.9 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,950 (2024)
Projected traffic6,767 by 2046
Trucks56%
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 & US 51 NB over FAS 2936 (unmarked) built?

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

What condition is I 57 NB & US 51 NB over FAS 2936 (unmarked) 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 July 2023.

How much traffic does I 57 NB & US 51 NB over FAS 2936 (unmarked) carry?

About 5,950 vehicles per day (2024 count), of which roughly 56% are trucks.

How long is I 57 NB & US 51 NB over FAS 2936 (unmarked)?

The structure is 1,013 ft (308.8 m) long with a longest span of 65 ft (19.8 m) and a deck 36 ft wide.

Who owns I 57 NB & US 51 NB over FAS 2936 (unmarked)?

It is owned by the State Highway Agency.