US Bridges

N Greenmount RD over FAI 64

Good

St. Clair County, Illinois · .87 MI S of US 50 · Structure no. 082034400000000

Built
2001
24 years old, rebuilt 2012
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
280 ft
2 main spans
Daily traffic
10,200
2023 count
Owner
State
State Highway Agency

About this bridge

N Greenmount RD over FAI 64 is a steel continuous stringer/multi-beam or girder carrying N Greenmount RD over FAI 64 in St. Clair County, Illinois. It was built in 2001 and reconstructed in 2012, so it is 24 years old, younger 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 10,200 vehicles a day, roughly 5% of them trucks, projected to reach 10,959 by 2046. The structure is 280 ft (85.4 m) long and 69 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesN Greenmount RD
CrossesFAI 64
Location.87 MI S of US 50
CountySt. Clair County
StateIllinois
Coordinates38.57626, -89.9291
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
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 rating82.5 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length280 ft (85.4 m)
Longest span41 ft (12.6 m)
Deck width69 ft (20.9 m)
Roadway width65 ft (19.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,200 (2023)
Projected traffic10,959 by 2046
Trucks5%
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 Greenmount RD over FAI 64 built?

It was built in 2001, making it 24 years old in 2025. It was reconstructed in 2012.

What condition is N Greenmount RD 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 Greenmount RD over FAI 64 carry?

About 10,200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is N Greenmount RD over FAI 64?

The structure is 280 ft (85.4 m) long with a longest span of 41 ft (12.6 m) and a deck 69 ft wide.

Who owns N Greenmount RD over FAI 64?

It is owned by the State Highway Agency.