US Bridges

I-39 US 51 NB over US 24 & Tp&w RR

Fair

Woodford County, Illinois · .5 MI W of Il 251 · Structure no. 102005900000000

Built
1989
36 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
453 ft
4 main spans
Daily traffic
9,350
2023 count
Owner
State
State Highway Agency

About this bridge

I-39 US 51 NB over US 24 & Tp&w RR is a steel continuous stringer/multi-beam or girder carrying I-39 US 51 NB over US 24 & Tp&w RR in Woodford 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 5 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 9,350 vehicles a day, roughly 37% of them trucks, projected to reach 9,141 by 2046. The structure is 453 ft (138.2 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-39 US 51 NB
CrossesUS 24 & Tp&w RR
Location.5 MI W of Il 251
RouteInterstate 39
CountyWoodford County
StateIllinois
Coordinates40.73675, -89.03429
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.8 US tons
Inventory rating42.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+1 approach)
Design loadHS 20
Structure length453 ft (138.2 m)
Longest span92 ft (28 m)
Deck width48 ft (14.6 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,350 (2023)
Projected traffic9,141 by 2046
Trucks37%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and railroad
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-39 US 51 NB over US 24 & Tp&w RR built?

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

What condition is I-39 US 51 NB over US 24 & Tp&w 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 February 2024.

How much traffic does I-39 US 51 NB over US 24 & Tp&w RR carry?

About 9,350 vehicles per day (2023 count), of which roughly 37% are trucks.

How long is I-39 US 51 NB over US 24 & Tp&w RR?

The structure is 453 ft (138.2 m) long with a longest span of 92 ft (28 m) and a deck 48 ft wide.

Who owns I-39 US 51 NB over US 24 & Tp&w RR?

It is owned by the State Highway Agency.