US Bridges

Old US 50 over FAI 64

Fair

St. Clair County, Illinois · 2.31 MI E of Ill 159 · Structure no. 082017900000000

Built
1972
53 years old, rebuilt 1999
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
325 ft
2 main spans
Daily traffic
12,750
2023 count
Owner
State
State Highway Agency

About this bridge

Old US 50 over FAI 64 is a steel continuous stringer/multi-beam or girder carrying Old US 50 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 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 12,750 vehicles a day, roughly 5% of them trucks, projected to reach 14,797 by 2046. The structure is 325 ft (99.1 m) long and 92 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOld US 50
CrossesFAI 64
Location2.31 MI E of Ill 159
CountySt. Clair County
StateIllinois
Coordinates38.5924, -89.94491
Functional classUrban Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.3 US tons
Inventory rating52.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length325 ft (99.1 m)
Longest span120 ft (36.6 m)
Deck width92 ft (28 m)
Roadway width89 ft (27 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,750 (2023)
Projected traffic14,797 by 2046
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Old US 50 over FAI 64 built?

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

What condition is Old US 50 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 February 2023.

How much traffic does Old US 50 over FAI 64 carry?

About 12,750 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Old US 50 over FAI 64?

The structure is 325 ft (99.1 m) long with a longest span of 120 ft (36.6 m) and a deck 92 ft wide.

Who owns Old US 50 over FAI 64?

It is owned by the State Highway Agency.