US Bridges

I- 55 WB Rmp Ryan over Archer; BNSF & Ic RR

Fair

Cook County, Illinois · 0.2 M E I-94 · Structure no. 016104700000000

Built
1964
61 years old, rebuilt 1989
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
713 ft
11 main spans
Daily traffic
14,800
2024 count
Owner
State
State Highway Agency

About this bridge

I- 55 WB Rmp Ryan over Archer; BNSF & Ic RR is a steel continuous stringer/multi-beam or girder carrying I- 55 WB Rmp Ryan over Archer; BNSF & Ic RR in Cook County, Illinois. It was built in 1964 and reconstructed in 1989, so it is 61 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 14,800 vehicles a day, roughly 30% of them trucks, projected to reach 13,736 by 2046. The structure is 713 ft (217.3 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesI- 55 WB Rmp Ryan
CrossesArcher; BNSF & Ic RR
Location0.2 M E I-94
CountyCook County
StateIllinois
Coordinates41.84754, -87.64011
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length713 ft (217.3 m)
Longest span135 ft (41.1 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,800 (2024)
Projected traffic13,736 by 2046
Trucks30%
Lanes on structure1
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesHighway
Detour if closed5 mi (8 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 I- 55 WB Rmp Ryan over Archer; BNSF & Ic RR built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1989.

What condition is I- 55 WB Rmp Ryan over Archer; BNSF & Ic RR 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 June 2024.

How much traffic does I- 55 WB Rmp Ryan over Archer; BNSF & Ic RR carry?

About 14,800 vehicles per day (2024 count), of which roughly 30% are trucks.

How long is I- 55 WB Rmp Ryan over Archer; BNSF & Ic RR?

The structure is 713 ft (217.3 m) long with a longest span of 135 ft (41.1 m) and a deck 29 ft wide.

Who owns I- 55 WB Rmp Ryan over Archer; BNSF & Ic RR?

It is owned by the State Highway Agency.