US Bridges

47th ST over I- 90 94 Ryan & Cta

Fair

Cook County, Illinois · 2.7 M S I-55 · Structure no. 016115600000000

Built
1960
65 years old, rebuilt 1999
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
307 ft
5 main spans
Daily traffic
13,300
2022 count
Owner
State
State Highway Agency

About this bridge

47th ST over I- 90 94 Ryan & Cta is a steel continuous stringer/multi-beam or girder carrying 47th ST over I- 90 94 Ryan & Cta in Cook County, Illinois. It was built in 1960 and reconstructed in 1999, so it is 65 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 13,300 vehicles a day, roughly 20% of them trucks, projected to reach 13,332 by 2046. The structure is 307 ft (93.5 m) long and 95 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries47th ST
CrossesI- 90 94 Ryan & Cta
Location2.7 M S I-55
CountyCook County
StateIllinois
Coordinates41.80911, -87.63204
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length307 ft (93.5 m)
Longest span74 ft (22.6 m)
Deck width95 ft (29 m)
Roadway width74 ft (22.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,300 (2022)
Projected traffic13,332 by 2046
Trucks20%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and railroad
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$7.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was 47th ST over I- 90 94 Ryan & Cta built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1999.

What condition is 47th ST over I- 90 94 Ryan & Cta 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 October 2024.

How much traffic does 47th ST over I- 90 94 Ryan & Cta carry?

About 13,300 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is 47th ST over I- 90 94 Ryan & Cta?

The structure is 307 ft (93.5 m) long with a longest span of 74 ft (22.6 m) and a deck 95 ft wide.

Who owns 47th ST over I- 90 94 Ryan & Cta?

It is owned by the State Highway Agency.