US Bridges

N Main ST / FAU 92 over FAI 64

Good

St. Clair County, Illinois · 1/2 MI S of US 50 · Structure no. 082018200000000

Built
1972
53 years old, rebuilt 2005
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
197 ft
2 main spans
Daily traffic
5,300
2023 count
Owner
State
State Highway Agency

About this bridge

N Main ST / FAU 92 over FAI 64 is a steel continuous stringer/multi-beam or girder carrying N Main ST / FAU 92 over FAI 64 in St. Clair County, Illinois. It was built in 1972 and reconstructed in 2005, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,300 vehicles a day, roughly 4% of them trucks, projected to reach 5,101 by 2046. The structure is 197 ft (60.1 m) long and 46 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesN Main ST / FAU 92
CrossesFAI 64
Location1/2 MI S of US 50
CountySt. Clair County
StateIllinois
Coordinates38.57444, -89.88668
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.5 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 length197 ft (60.1 m)
Longest span97 ft (29.7 m)
Deck width46 ft (14 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,300 (2023)
Projected traffic5,101 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.7 mi (14 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 N Main ST / FAU 92 over FAI 64 built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2005.

What condition is N Main ST / FAU 92 over FAI 64 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.

How much traffic does N Main ST / FAU 92 over FAI 64 carry?

About 5,300 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is N Main ST / FAU 92 over FAI 64?

The structure is 197 ft (60.1 m) long with a longest span of 97 ft (29.7 m) and a deck 46 ft wide.

Who owns N Main ST / FAU 92 over FAI 64?

It is owned by the State Highway Agency.