US Bridges

I- 55 EB Rmp Ryan over Dry Land

Fair

Cook County, Illinois · At I-94 · Structure no. 016104600000000

Built
1964
61 years old, rebuilt 1997
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,625 ft
17 main spans
Daily traffic
23,500
2024 count
Owner
State
State Highway Agency

About this bridge

I- 55 EB Rmp Ryan over Dry Land is a steel continuous stringer/multi-beam or girder carrying I- 55 EB Rmp Ryan over Dry Land in Cook County, Illinois. It was built in 1964 and reconstructed in 1997, 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 23,500 vehicles a day, roughly 10% of them trucks, projected to reach 25,351 by 2046. The structure is 1,625 ft (495.4 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesI- 55 EB Rmp Ryan
CrossesDry Land
LocationAt I-94
CountyCook County
StateIllinois
Coordinates41.84643, -87.64303
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.
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 2023
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 rating93.6 US tons
Inventory rating56.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans17
Design loadHS 20
Structure length1,625 ft (495.4 m)
Longest span136 ft (41.4 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,500 (2024)
Projected traffic25,351 by 2046
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$760,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I- 55 EB Rmp Ryan over Dry Land built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1997.

What condition is I- 55 EB Rmp Ryan over Dry Land 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 2023.

How much traffic does I- 55 EB Rmp Ryan over Dry Land carry?

About 23,500 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is I- 55 EB Rmp Ryan over Dry Land?

The structure is 1,625 ft (495.4 m) long with a longest span of 136 ft (41.4 m) and a deck 29 ft wide.

Who owns I- 55 EB Rmp Ryan over Dry Land?

It is owned by the State Highway Agency.