US Bridges

FAS 1937/TROY Ofal over Conrail RR

Fair

Madison County, Illinois · 1.5 MI S Troy · Structure no. 060328500000000

Built
1987
38 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
156 ft
3 main spans
Daily traffic
8,150
2021 count
Owner
County
County Highway Agency

About this bridge

FAS 1937/TROY Ofal over Conrail RR is a prestressed concrete box beam or girders - multiple carrying FAS 1937/TROY Ofal over Conrail RR in Madison County, Illinois. It was built in 1987, so it is 38 years old, younger 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 8,150 vehicles a day, roughly 9% of them trucks, projected to reach 8,721 by 2046. The structure is 156 ft (47.5 m) long and 42 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFAS 1937/TROY Ofal
CrossesConrail RR
Location1.5 MI S Troy
RouteCounty Highway 0
CountyMadison County
StateIllinois
Coordinates38.6928, -89.87579
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 rating69.3 US tons
Inventory rating41.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length156 ft (47.5 m)
Longest span51 ft (15.5 m)
Deck width42 ft (12.8 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,150 (2021)
Projected traffic8,721 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 FAS 1937/TROY Ofal over Conrail RR built?

It was built in 1987, making it 38 years old in 2025.

What condition is FAS 1937/TROY Ofal over Conrail RR 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 September 2024.

How much traffic does FAS 1937/TROY Ofal over Conrail RR carry?

About 8,150 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAS 1937/TROY Ofal over Conrail RR?

The structure is 156 ft (47.5 m) long with a longest span of 51 ft (15.5 m) and a deck 42 ft wide.

Who owns FAS 1937/TROY Ofal over Conrail RR?

It is owned by the County Highway Agency.