US Bridges

87th ST over I- 94 Ryan & Cta

Fair

Cook County, Illinois · 1 M N US 12 20 · Structure no. 016114200000000

Built
1959
66 years old, rebuilt 1997
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
193 ft
3 main spans
Daily traffic
22,600
2022 count
Owner
State
State Highway Agency

About this bridge

87th ST over I- 94 Ryan & Cta is a steel continuous stringer/multi-beam or girder carrying 87th ST over I- 94 Ryan & Cta in Cook County, Illinois. It was built in 1959 and reconstructed in 1997, so it is 66 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 22,600 vehicles a day, roughly 4% of them trucks, projected to reach 29,997 by 2046. The structure is 193 ft (58.7 m) long and 109 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries87th ST
CrossesI- 94 Ryan & Cta
Location1 M N US 12 20
CountyCook County
StateIllinois
Coordinates41.73631, -87.62528
Functional classUrban Other Principal 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 inspectionSeptember 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 alignment8: Equal to present desirable criteria
Operating rating71.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20
Structure length193 ft (58.7 m)
Longest span74 ft (22.7 m)
Deck width109 ft (33.1 m)
Roadway width91 ft (27.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,600 (2022)
Projected traffic29,997 by 2046
Trucks4%
Lanes on structure7
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 87th ST over I- 94 Ryan & Cta built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1997.

What condition is 87th ST over I- 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 September 2024.

How much traffic does 87th ST over I- 94 Ryan & Cta carry?

About 22,600 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is 87th ST over I- 94 Ryan & Cta?

The structure is 193 ft (58.7 m) long with a longest span of 74 ft (22.7 m) and a deck 109 ft wide.

Who owns 87th ST over I- 94 Ryan & Cta?

It is owned by the State Highway Agency.