US Bridges

111th ST over I- 57

Fair

Cook County, Illinois · 2 M SW Il 1 · Structure no. 016098900000000

Built
1965
60 years old, rebuilt 2010
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
177 ft
3 main spans
Daily traffic
10,000
2023 count
Owner
State
State Highway Agency

About this bridge

111th ST over I- 57 is a steel stringer/multi-beam or girder carrying 111th ST over I- 57 in Cook County, Illinois. It was built in 1965 and reconstructed in 2010, so it is 60 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 10,000 vehicles a day, roughly 11% of them trucks, projected to reach 9,545 by 2046. The structure is 177 ft (53.8 m) long and 83 ft wide.

Location

Open in Google Maps
Carries111th ST
CrossesI- 57
Location2 M SW Il 1
CountyCook County
StateIllinois
Coordinates41.69215, -87.66017
Functional classUrban Minor 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
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 inspectionMarch 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.9 US tons
Inventory rating56.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length177 ft (53.8 m)
Longest span64 ft (19.5 m)
Deck width83 ft (25.3 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2023)
Projected traffic9,545 by 2046
Trucks11%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 111th ST over I- 57 built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2010.

What condition is 111th ST over I- 57 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 March 2023.

How much traffic does 111th ST over I- 57 carry?

About 10,000 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is 111th ST over I- 57?

The structure is 177 ft (53.8 m) long with a longest span of 64 ft (19.5 m) and a deck 83 ft wide.

Who owns 111th ST over I- 57?

It is owned by the State Highway Agency.