US Bridges

FAI-57 NB over FAS 317 & Icg RR

Fair

Iroquois County, Illinois · 0.78 MI S Clifton in · Structure no. 038001300000000

Built
1966
59 years old, rebuilt 2014
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
374 ft
5 main spans
Daily traffic
9,200
2023 count
Owner
State
State Highway Agency

About this bridge

FAI-57 NB over FAS 317 & Icg RR is a steel continuous stringer/multi-beam or girder carrying FAI-57 NB over FAS 317 & Icg RR in Iroquois County, Illinois. It was built in 1966 and reconstructed in 2014, so it is 59 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 9,200 vehicles a day, roughly 32% of them trucks, projected to reach 7,929 by 2046. The structure is 374 ft (113.9 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFAI-57 NB
CrossesFAS 317 & Icg RR
Location0.78 MI S Clifton in
RouteInterstate 57
CountyIroquois County
StateIllinois
Coordinates40.92111, -87.93972
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length374 ft (113.9 m)
Longest span96 ft (29.2 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,200 (2023)
Projected traffic7,929 by 2046
Trucks32%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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 FAI-57 NB over FAS 317 & Icg RR built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2014.

What condition is FAI-57 NB over FAS 317 & Icg RR 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 FAI-57 NB over FAS 317 & Icg RR carry?

About 9,200 vehicles per day (2023 count), of which roughly 32% are trucks.

How long is FAI-57 NB over FAS 317 & Icg RR?

The structure is 374 ft (113.9 m) long with a longest span of 96 ft (29.2 m) and a deck 43 ft wide.

Who owns FAI-57 NB over FAS 317 & Icg RR?

It is owned by the State Highway Agency.