US Bridges

WB US 34 over Cedar Creek

Fair

Knox County, Illinois · SW Edge of Galesburg · Structure no. 048007600000000

Built
1979
46 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
241 ft
3 main spans
Daily traffic
8,950
2023 count
Owner
State
State Highway Agency

About this bridge

WB US 34 over Cedar Creek is a steel continuous stringer/multi-beam or girder carrying WB US 34 over Cedar Creek in Knox 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 8,950 vehicles a day, roughly 22% of them trucks, projected to reach 5,126 by 2046. The structure is 241 ft (73.5 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesWB US 34
CrossesCedar Creek
LocationSW Edge of Galesburg
RouteU.S. Route 34
CountyKnox County
StateIllinois
Coordinates40.9426, -90.40976
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating57.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length241 ft (73.5 m)
Longest span87 ft (26.5 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,950 (2023)
Projected traffic5,126 by 2046
Trucks22%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 WB US 34 over Cedar Creek built?

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

What condition is WB US 34 over Cedar Creek 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 November 2024.

How much traffic does WB US 34 over Cedar Creek carry?

About 8,950 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is WB US 34 over Cedar Creek?

The structure is 241 ft (73.5 m) long with a longest span of 87 ft (26.5 m) and a deck 45 ft wide.

Who owns WB US 34 over Cedar Creek?

It is owned by the State Highway Agency.