US Bridges

Il 394 SB over RR - Wi Central Ltd

Fair

Cook County, Illinois · 0.5 M S US 30 · Structure no. 016104100000000

Built
1955
70 years old, rebuilt 1990
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
293 ft
4 main spans
Daily traffic
30,700
2017 count
Owner
State
State Highway Agency

About this bridge

Il 394 SB over RR - Wi Central Ltd is a steel continuous stringer/multi-beam or girder carrying Il 394 SB over RR - Wi Central Ltd in Cook County, Illinois. It was built in 1955 and reconstructed in 1990, so it is 70 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 30,700 vehicles a day, roughly 17% of them trucks, projected to reach 15,504 by 2046. The structure is 293 ft (89.2 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesIl 394 SB
CrossesRR - Wi Central Ltd
Location0.5 M S US 30
RouteState Highway 394
CountyCook County
StateIllinois
Coordinates41.49923, -87.57771
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 inspectionAugust 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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.8 US tons
Inventory rating44.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length293 ft (89.2 m)
Longest span80 ft (24.4 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,700 (2017)
Projected traffic15,504 by 2046
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Il 394 SB over RR - Wi Central Ltd built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1990.

What condition is Il 394 SB over RR - Wi Central Ltd 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 August 2024.

How much traffic does Il 394 SB over RR - Wi Central Ltd carry?

About 30,700 vehicles per day (2017 count), of which roughly 17% are trucks.

How long is Il 394 SB over RR - Wi Central Ltd?

The structure is 293 ft (89.2 m) long with a longest span of 80 ft (24.4 m) and a deck 43 ft wide.

Who owns Il 394 SB over RR - Wi Central Ltd?

It is owned by the State Highway Agency.