US Bridges

WB I-474 over EB I-74

Fair

Peoria County, Illinois · 2 MI W Sterling Ave · Structure no. 072011000000000

Built
1979
46 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
227 ft
1 main span
Daily traffic
2,425
2023 count
Owner
State
State Highway Agency

About this bridge

WB I-474 over EB I-74 is a steel stringer/multi-beam or girder carrying WB I-474 over EB I-74 in Peoria County, Illinois. It was built in 1979, so it is 46 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 2,425 vehicles a day, roughly 43% of them trucks, projected to reach 3,005 by 2046. The structure is 227 ft (69.3 m) long and 42 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesWB I-474
CrossesEB I-74
Location2 MI W Sterling Ave
RouteInterstate 474
CountyPeoria County
StateIllinois
Coordinates40.74146, -89.67306
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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2022
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.6 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20 + Mod
Structure length227 ft (69.3 m)
Longest span143 ft (43.6 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,425 (2023)
Projected traffic3,005 by 2046
Trucks43%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was WB I-474 over EB I-74 built?

It was built in 1979, making it 46 years old in 2025.

What condition is WB I-474 over EB 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 December 2022.

How much traffic does WB I-474 over EB I-74 carry?

About 2,425 vehicles per day (2023 count), of which roughly 43% are trucks.

How long is WB I-474 over EB I-74?

The structure is 227 ft (69.3 m) long with a longest span of 143 ft (43.6 m) and a deck 42 ft wide.

Who owns WB I-474 over EB I-74?

It is owned by the State Highway Agency.