US Bridges

FAI 155 NB over Icg RR

Fair

Logan County, Illinois · 2.7MI S I-155/IL136 · Structure no. 054007700000000

Built
1988
37 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
143 ft
3 main spans
Daily traffic
5,300
2023 count
Owner
State
State Highway Agency

About this bridge

FAI 155 NB over Icg RR is a steel continuous stringer/multi-beam or girder carrying FAI 155 NB over Icg RR in Logan County, Illinois. It was built in 1988, so it is 37 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 5,300 vehicles a day, roughly 19% of them trucks, projected to reach 5,066 by 2046. The structure is 143 ft (43.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFAI 155 NB
CrossesIcg RR
Location2.7MI S I-155/IL136
RouteInterstate 155
Coordinates40.26812, -89.45692
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 inspectionAugust 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 rating75.4 US tons
Inventory rating38.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length143 ft (43.6 m)
Longest span54 ft (16.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,300 (2023)
Projected traffic5,066 by 2046
Trucks19%
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 155 NB over Icg RR built?

It was built in 1988, making it 37 years old in 2025.

What condition is FAI 155 NB over 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 August 2024.

How much traffic does FAI 155 NB over Icg RR carry?

About 5,300 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is FAI 155 NB over Icg RR?

The structure is 143 ft (43.6 m) long with a longest span of 54 ft (16.5 m) and a deck 43 ft wide.

Who owns FAI 155 NB over Icg RR?

It is owned by the State Highway Agency.