US Bridges

FAI 70 WB over Wilson Heights RD

Fair

Madison County, Illinois · 1.7 M E 159 · Structure no. 060001900000000

Built
1958
67 years old, rebuilt 1993
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
151 ft
3 main spans
Daily traffic
22,800
2023 count
Owner
State
State Highway Agency

About this bridge

FAI 70 WB over Wilson Heights RD is a steel continuous stringer/multi-beam or girder carrying FAI 70 WB over Wilson Heights RD in Madison County, Illinois. It was built in 1958 and reconstructed in 1993, so it is 67 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 22,800 vehicles a day, roughly 25% of them trucks, projected to reach 24,236 by 2046. The structure is 151 ft (46 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFAI 70 WB
CrossesWilson Heights RD
Location1.7 M E 159
RouteInterstate 55
Coordinates38.71356, -89.92985
Functional classUrban Principal Arterial - Interstate

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.8 US tons
Inventory rating42.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length151 ft (46 m)
Longest span58 ft (17.6 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,800 (2023)
Projected traffic24,236 by 2046
Trucks25%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 FAI 70 WB over Wilson Heights RD built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1993.

What condition is FAI 70 WB over Wilson Heights RD 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 December 2024.

How much traffic does FAI 70 WB over Wilson Heights RD carry?

About 22,800 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is FAI 70 WB over Wilson Heights RD?

The structure is 151 ft (46 m) long with a longest span of 58 ft (17.6 m) and a deck 43 ft wide.

Who owns FAI 70 WB over Wilson Heights RD?

It is owned by the State Highway Agency.