US Bridges

Stony NB to 100th over Stony Island Ave

Fair

Cook County, Illinois · 0.1 M N 103rd ST · Structure no. 016243700000000

Built
1972
53 years old, rebuilt 2013
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,453 ft
14 main spans
Daily traffic
7,300
2006 count
Owner
State
State Highway Agency

About this bridge

Stony NB to 100th over Stony Island Ave is a steel continuous stringer/multi-beam or girder carrying Stony NB to 100th over Stony Island Ave in Cook County, Illinois. It was built in 1972 and reconstructed in 2013, so it is 53 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 7,300 vehicles a day, roughly 22% of them trucks, projected to reach 7,373 by 2046. The structure is 1,453 ft (443 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesStony NB to 100th
CrossesStony Island Ave
Location0.1 M N 103rd ST
CountyCook County
StateIllinois
Coordinates41.71112, -87.58441
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionNovember 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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans14 (+2 approach)
Design loadHS 20
Structure length1,453 ft (443 m)
Longest span147 ft (44.9 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,300 (2006)
Projected traffic7,373 by 2046
Trucks22%
Lanes on structure1
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$9.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Stony NB to 100th over Stony Island Ave built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2013.

What condition is Stony NB to 100th over Stony Island Ave 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 November 2024.

How much traffic does Stony NB to 100th over Stony Island Ave carry?

About 7,300 vehicles per day (2006 count), of which roughly 22% are trucks.

How long is Stony NB to 100th over Stony Island Ave?

The structure is 1,453 ft (443 m) long with a longest span of 147 ft (44.9 m) and a deck 28 ft wide.

Who owns Stony NB to 100th over Stony Island Ave?

It is owned by the State Highway Agency.