US Bridges

FAI-57 NB over Ic RR

Poor

Iroquois County, Illinois · 8.98 MI S Ashkum Int · Structure no. 038000400000000

Built
1967
58 years old
Condition
Poor
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
227 ft
3 main spans
Daily traffic
9,050
2023 count
Owner
State
State Highway Agency

About this bridge

FAI-57 NB over Ic RR is a steel continuous stringer/multi-beam or girder carrying FAI-57 NB over Ic RR in Iroquois 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 9,050 vehicles a day, roughly 34% of them trucks, projected to reach 8,535 by 2046. The structure is 227 ft (69.2 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesFAI-57 NB
CrossesIc RR
Location8.98 MI S Ashkum Int
RouteInterstate 57
CountyIroquois County
StateIllinois
Coordinates40.7636, -88.00669
Functional classRural Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
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 geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length227 ft (69.2 m)
Longest span86 ft (26.2 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,050 (2023)
Projected traffic8,535 by 2046
Trucks34%
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 FAI-57 NB over Ic RR built?

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

What condition is FAI-57 NB over Ic RR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.

How much traffic does FAI-57 NB over Ic RR carry?

About 9,050 vehicles per day (2023 count), of which roughly 34% are trucks.

How long is FAI-57 NB over Ic RR?

The structure is 227 ft (69.2 m) long with a longest span of 86 ft (26.2 m) and a deck 42 ft wide.

Who owns FAI-57 NB over Ic RR?

It is owned by the State Highway Agency.