US Bridges

FAU 9187A & Met Li over Miss RIV/RR/MSS6000

Fair

St. Clair County, Illinois · E ST Louis · Structure no. 082992900000000

Built
1874
151 years old, rebuilt 2003
Condition
Fair
inspected April 2024
Type
Other
Steel
Length
4,007 ft
4 main spans
Daily traffic
6,550
2023 count
Owner
Private
Private (other than railroad)

About this bridge

FAU 9187A & Met Li over Miss RIV/RR/MSS6000 is a steel other carrying FAU 9187A & Met Li over Miss RIV/RR/MSS6000 in St. Clair County, Illinois. It was built in 1874 and reconstructed in 2003, so it is 151 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 6,550 vehicles a day, roughly 6% of them trucks, projected to reach 14,746 by 2046. The structure is 4,007 ft (1,221.3 m) long and 54 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesFAU 9187A & Met Li
CrossesMiss RIV/RR/MSS6000
LocationE ST Louis
CountySt. Clair County
StateIllinois
Coordinates38.62891, -90.17868
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating98.2 US tons

Structure

Structure typeOther
MaterialSteel
DeckConcrete, cast-in-place
Main spans4 (+41 approach)
Design loadH 15
Structure length4,007 ft (1,221.3 m)
Longest span520 ft (158.5 m)
Deck width54 ft (16.6 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,550 (2023)
Projected traffic14,746 by 2046
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and railroad
CrossesHighway, waterway and railroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerPrivate (other than railroad)
Maintained byPrivate (other than railroad)
Historic statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$9.7 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was FAU 9187A & Met Li over Miss RIV/RR/MSS6000 built?

It was built in 1874, making it 151 years old in 2025. It was reconstructed in 2003.

What condition is FAU 9187A & Met Li over Miss RIV/RR/MSS6000 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 April 2024.

How much traffic does FAU 9187A & Met Li over Miss RIV/RR/MSS6000 carry?

About 6,550 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is FAU 9187A & Met Li over Miss RIV/RR/MSS6000?

The structure is 4,007 ft (1,221.3 m) long with a longest span of 520 ft (158.5 m) and a deck 54 ft wide.

Who owns FAU 9187A & Met Li over Miss RIV/RR/MSS6000?

It is owned by the Private (other than railroad).