US Bridges

FAI 255/RDWAY"B" over FAI 55/70

Fair

Madison County, Illinois · 1.35MI W of Ill 157 · Structure no. 060021100000000

Built
1986
39 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
352 ft
2 main spans
Daily traffic
5,000
2021 count
Owner
State
State Highway Agency

About this bridge

FAI 255/RDWAY"B" over FAI 55/70 is a steel continuous stringer/multi-beam or girder carrying FAI 255/RDWAY"B" over FAI 55/70 in Madison County, Illinois. It was built in 1986, so it is 39 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 5,000 vehicles a day, roughly 12% of them trucks, projected to reach 5,350 by 2046. The structure is 352 ft (107.3 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesFAI 255/RDWAY"B"
CrossesFAI 55/70
Location1.35MI W of Ill 157
CountyMadison County
StateIllinois
Coordinates38.67152, -90.03396
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2025
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 alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length352 ft (107.3 m)
Longest span156 ft (47.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2021)
Projected traffic5,350 by 2046
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAI 255/RDWAY"B" over FAI 55/70 built?

It was built in 1986, making it 39 years old in 2025.

What condition is FAI 255/RDWAY"B" over FAI 55/70 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 January 2025.

How much traffic does FAI 255/RDWAY"B" over FAI 55/70 carry?

About 5,000 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is FAI 255/RDWAY"B" over FAI 55/70?

The structure is 352 ft (107.3 m) long with a longest span of 156 ft (47.5 m) and a deck 43 ft wide.

Who owns FAI 255/RDWAY"B" over FAI 55/70?

It is owned by the State Highway Agency.