US Bridges

43rd ST over I- 90 94 Ryan & Cta

Fair

Cook County, Illinois · 2.1 M S I-55 · Structure no. 016115500000000

Built
1961
64 years old, rebuilt 2003
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
296 ft
5 main spans
Daily traffic
7,500
2022 count
Owner
State
State Highway Agency

About this bridge

43rd ST over I- 90 94 Ryan & Cta is a steel continuous stringer/multi-beam or girder carrying 43rd ST over I- 90 94 Ryan & Cta in Cook County, Illinois. It was built in 1961 and reconstructed in 2003, so it is 64 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 7,500 vehicles a day, roughly 6% of them trucks, projected to reach 8,535 by 2046. The structure is 296 ft (90.2 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries43rd ST
CrossesI- 90 94 Ryan & Cta
Location2.1 M S I-55
CountyCook County
StateIllinois
Coordinates41.81688, -87.6015
Functional classUrban Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 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 rating83.9 US tons
Inventory rating50.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length296 ft (90.2 m)
Longest span72 ft (22 m)
Deck width71 ft (21.5 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,500 (2022)
Projected traffic8,535 by 2046
Trucks6%
Lanes on structure4
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 SystemNo

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$3.8 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was 43rd ST over I- 90 94 Ryan & Cta built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2003.

What condition is 43rd 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 January 2024.

How much traffic does 43rd ST over I- 90 94 Ryan & Cta carry?

About 7,500 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is 43rd ST over I- 90 94 Ryan & Cta?

The structure is 296 ft (90.2 m) long with a longest span of 72 ft (22 m) and a deck 71 ft wide.

Who owns 43rd ST over I- 90 94 Ryan & Cta?

It is owned by the State Highway Agency.