US Bridges

Ch 8 & FAS 473 Ch over I-39/US 51

Fair

McLean County, Illinois · 1 MI S Woodford Co. · Structure no. 057020400000000

Built
1989
36 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
232 ft
3 main spans
Daily traffic
1,175
2023 count
Owner
State
State Highway Agency

About this bridge

Ch 8 & FAS 473 Ch over I-39/US 51 is a steel continuous stringer/multi-beam or girder carrying Ch 8 & FAS 473 Ch over I-39/US 51 in McLean County, Illinois. It was built in 1989, so it is 36 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 1,175 vehicles a day, roughly 11% of them trucks, projected to reach 1,263 by 2046. The structure is 232 ft (70.6 m) long and 65 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCh 8 & FAS 473 Ch
CrossesI-39/US 51
Location1 MI S Woodford Co.
RouteCounty Highway 0
CountyMcLean County
StateIllinois
Coordinates40.65027, -89.00498
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.
Substructure7 GoodSome minor problems.
Last inspectionApril 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 rating71.4 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length232 ft (70.6 m)
Longest span169 ft (51.4 m)
Deck width65 ft (19.9 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,175 (2023)
Projected traffic1,263 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ch 8 & FAS 473 Ch over I-39/US 51 built?

It was built in 1989, making it 36 years old in 2025.

What condition is Ch 8 & FAS 473 Ch over I-39/US 51 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 2023.

How much traffic does Ch 8 & FAS 473 Ch over I-39/US 51 carry?

About 1,175 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Ch 8 & FAS 473 Ch over I-39/US 51?

The structure is 232 ft (70.6 m) long with a longest span of 169 ft (51.4 m) and a deck 65 ft wide.

Who owns Ch 8 & FAS 473 Ch over I-39/US 51?

It is owned by the State Highway Agency.