US Bridges

West Oakland Ch RD over I-55/I-74

Fair

McLean County, Illinois · 1.3 M S I-55 & Il 9 · Structure no. 057011100000000

Built
1963
62 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
262 ft
4 main spans
Daily traffic
2,250
2024 count
Owner
State
State Highway Agency

About this bridge

West Oakland Ch RD over I-55/I-74 is a steel continuous stringer/multi-beam or girder carrying West Oakland Ch RD over I-55/I-74 in McLean County, Illinois. It was built in 1963, so it is 62 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 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 2,250 vehicles a day, roughly 11% of them trucks, projected to reach 1,566 by 2046. The structure is 262 ft (79.9 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesWest Oakland Ch RD
CrossesI-55/I-74
Location1.3 M S I-55 & Il 9
CountyMcLean County
StateIllinois
Coordinates40.46683, -89.03027
Functional classUrban 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.1 US tons
Inventory rating35.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length262 ft (79.9 m)
Longest span77 ft (23.5 m)
Deck width32 ft (9.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,250 (2024)
Projected traffic1,566 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was West Oakland Ch RD over I-55/I-74 built?

It was built in 1963, making it 62 years old in 2025.

What condition is West Oakland Ch RD over I-55/I-74 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 2024.

How much traffic does West Oakland Ch RD over I-55/I-74 carry?

About 2,250 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is West Oakland Ch RD over I-55/I-74?

The structure is 262 ft (79.9 m) long with a longest span of 77 ft (23.5 m) and a deck 32 ft wide.

Who owns West Oakland Ch RD over I-55/I-74?

It is owned by the State Highway Agency.