US Bridges

Ill 4 over FAI 64

Fair

St. Clair County, Illinois · 3 MI S of Lebanon · Structure no. 082019000000000

Built
1972
53 years old, rebuilt 1999
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
182 ft
2 main spans
Daily traffic
9,750
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 4 over FAI 64 is a steel continuous stringer/multi-beam or girder carrying Ill 4 over FAI 64 in St. Clair County, Illinois. It was built in 1972 and reconstructed in 1999, so it is 53 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 9,750 vehicles a day, roughly 19% of them trucks, projected to reach 7,828 by 2046. The structure is 182 ft (55.4 m) long and 68 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesIll 4
CrossesFAI 64
Location3 MI S of Lebanon
RouteState Highway 4
CountySt. Clair County
StateIllinois
Coordinates38.55181, -89.80713
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.7 US tons
Inventory rating48.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length182 ft (55.4 m)
Longest span90 ft (27.4 m)
Deck width68 ft (20.7 m)
Roadway width48 ft (14.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,750 (2023)
Projected traffic7,828 by 2046
Trucks19%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemYes

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 Ill 4 over FAI 64 built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 1999.

What condition is Ill 4 over FAI 64 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 June 2024.

How much traffic does Ill 4 over FAI 64 carry?

About 9,750 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is Ill 4 over FAI 64?

The structure is 182 ft (55.4 m) long with a longest span of 90 ft (27.4 m) and a deck 68 ft wide.

Who owns Ill 4 over FAI 64?

It is owned by the State Highway Agency.