US Bridges

WB Cd to IL3 SB "0 over Ground

FairPosted for load

St. Clair County, Illinois · Psc Abut 0-11->P-017 · Structure no. 082014300000000

Built
1971
54 years old, rebuilt 2004
Condition
Fair
inspected December 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
616 ft
6 main spans
Daily traffic
23,900
2023 count
Owner
State
State Highway Agency

About this bridge

WB Cd to IL3 SB "0 over Ground is a steel continuous girder and floorbeam system carrying WB Cd to IL3 SB "0 over Ground in St. Clair County, Illinois. It was built in 1971 and reconstructed in 2004, so it is 54 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. Its operating status is: posted for load restriction.

It carries about 23,900 vehicles a day, roughly 13% of them trucks, projected to reach 18,180 by 2046. The structure is 616 ft (187.8 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesWB Cd to IL3 SB "0
CrossesGround
LocationPsc Abut 0-11->P-017
RouteState Highway 3
CountySt. Clair County
StateIllinois
Coordinates38.61511, -90.17132
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
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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.2 US tons
Inventory rating31.7 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length616 ft (187.8 m)
Longest span120 ft (36.6 m)
Deck width28 ft (8.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,900 (2023)
Projected traffic18,180 by 2046
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesOther
Detour if closed5 mi (8 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$1.3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was WB Cd to IL3 SB "0 over Ground built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2004.

What condition is WB Cd to IL3 SB "0 over Ground 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 2023.

How much traffic does WB Cd to IL3 SB "0 over Ground carry?

About 23,900 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is WB Cd to IL3 SB "0 over Ground?

The structure is 616 ft (187.8 m) long with a longest span of 120 ft (36.6 m) and a deck 28 ft wide.

Who owns WB Cd to IL3 SB "0 over Ground?

It is owned by the State Highway Agency.