US Bridges

FAS 473 Ch 8 over I-55

Fair

McLean County, Illinois · 1 MI W of Lexington · Structure no. 057017100000000

Built
1973
52 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
266 ft
2 main spans
Daily traffic
2,350
2024 count
Owner
State
State Highway Agency

About this bridge

FAS 473 Ch 8 over I-55 is a steel continuous stringer/multi-beam or girder carrying FAS 473 Ch 8 over I-55 in McLean County, Illinois. It was built in 1973, so it is 52 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 2,350 vehicles a day, roughly 13% of them trucks, projected to reach 1,869 by 2046. The structure is 266 ft (81.2 m) long and 68 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFAS 473 Ch 8
CrossesI-55
Location1 MI W of Lexington
RouteCounty Highway 0
CountyMcLean County
StateIllinois
Coordinates40.64499, -88.80908
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length266 ft (81.2 m)
Longest span109 ft (33.3 m)
Deck width68 ft (20.7 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,350 (2024)
Projected traffic1,869 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.7 mi (6 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 FAS 473 Ch 8 over I-55 built?

It was built in 1973, making it 52 years old in 2025.

What condition is FAS 473 Ch 8 over I-55 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 May 2023.

How much traffic does FAS 473 Ch 8 over I-55 carry?

About 2,350 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is FAS 473 Ch 8 over I-55?

The structure is 266 ft (81.2 m) long with a longest span of 109 ft (33.3 m) and a deck 68 ft wide.

Who owns FAS 473 Ch 8 over I-55?

It is owned by the State Highway Agency.