US Bridges

I- 90 94 Ryan Elev over 16th to 18th Sts

Fair

Cook County, Illinois · 1 M N I-55 · Structure no. 016111100000000

Built
1962
63 years old, rebuilt 1989
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
942 ft
11 main spans
Daily traffic
247,500
2024 count
Owner
State
State Highway Agency

About this bridge

I- 90 94 Ryan Elev over 16th to 18th Sts is a steel continuous stringer/multi-beam or girder carrying I- 90 94 Ryan Elev over 16th to 18th Sts in Cook County, Illinois. It was built in 1962 and reconstructed in 1989, so it is 63 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 247,500 vehicles a day, roughly 6% of them trucks, projected to reach 241,390 by 2046. The structure is 942 ft (287.2 m) long and 141 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesI- 90 94 Ryan Elev
Crosses16th to 18th Sts
Location1 M N I-55
RouteInterstate 90
CountyCook County
StateIllinois
Coordinates41.85995, -87.64444
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating33.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length942 ft (287.2 m)
Longest span105 ft (31.9 m)
Deck width141 ft (43 m)
Roadway width126 ft (38.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic247,500 (2024)
Projected traffic241,390 by 2046
Trucks6%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I- 90 94 Ryan Elev over 16th to 18th Sts built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1989.

What condition is I- 90 94 Ryan Elev over 16th to 18th Sts 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 July 2024.

How much traffic does I- 90 94 Ryan Elev over 16th to 18th Sts carry?

About 247,500 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is I- 90 94 Ryan Elev over 16th to 18th Sts?

The structure is 942 ft (287.2 m) long with a longest span of 105 ft (31.9 m) and a deck 141 ft wide.

Who owns I- 90 94 Ryan Elev over 16th to 18th Sts?

It is owned by the State Highway Agency.