US Bridges

Willow Springs RD over I- 55 Stevenson

Fair

Cook County, Illinois · 1 M W US 45 · Structure no. 016053700000000

Built
1963
62 years old, rebuilt 1990
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
210 ft
4 main spans
Daily traffic
14,700
2023 count
Owner
State
State Highway Agency

About this bridge

Willow Springs RD over I- 55 Stevenson is a steel continuous stringer/multi-beam or girder carrying Willow Springs RD over I- 55 Stevenson in Cook County, Illinois. It was built in 1963 and reconstructed in 1990, 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 6 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 14,700 vehicles a day, roughly 3% of them trucks, projected to reach 12,928 by 2046. The structure is 210 ft (64 m) long and 70 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesWillow Springs RD
CrossesI- 55 Stevenson
Location1 M W US 45
CountyCook County
StateIllinois
Coordinates41.76135, -87.88695
Functional classUrban Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length210 ft (64 m)
Longest span68 ft (20.7 m)
Deck width70 ft (21.3 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,700 (2023)
Projected traffic12,928 by 2046
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 Willow Springs RD over I- 55 Stevenson built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1990.

What condition is Willow Springs RD over I- 55 Stevenson 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 May 2024.

How much traffic does Willow Springs RD over I- 55 Stevenson carry?

About 14,700 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Willow Springs RD over I- 55 Stevenson?

The structure is 210 ft (64 m) long with a longest span of 68 ft (20.7 m) and a deck 70 ft wide.

Who owns Willow Springs RD over I- 55 Stevenson?

It is owned by the State Highway Agency.