US Bridges

FAI 72 WB over Ill 100

Fair

Scott County, Illinois · I-72 & IL100 Int · Structure no. 086003800000000

Built
1981
44 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
174 ft
1 main span
Daily traffic
4,950
2023 count
Owner
State
State Highway Agency

About this bridge

FAI 72 WB over Ill 100 is a steel stringer/multi-beam or girder carrying FAI 72 WB over Ill 100 in Scott County, Illinois. It was built in 1981, so it is 44 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 4,950 vehicles a day, roughly 34% of them trucks, projected to reach 4,596 by 2046. The structure is 174 ft (53.1 m) long and 42 ft wide.

CarriesFAI 72 WB
CrossesIll 100
LocationI-72 & IL100 Int
RouteInterstate 72
Coordinates39.68504, -90.57038
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating34 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length174 ft (53.1 m)
Longest span125 ft (38.2 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,950 (2023)
Projected traffic4,596 by 2046
Trucks34%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 72 WB over Ill 100 built?

It was built in 1981, making it 44 years old in 2025.

What condition is FAI 72 WB over Ill 100 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 72 WB over Ill 100 carry?

About 4,950 vehicles per day (2023 count), of which roughly 34% are trucks.

How long is FAI 72 WB over Ill 100?

The structure is 174 ft (53.1 m) long with a longest span of 125 ft (38.2 m) and a deck 42 ft wide.

Who owns FAI 72 WB over Ill 100?

It is owned by the State Highway Agency.