US Bridges

Beaubien over Lower Level Beaubien

Fair

Cook County, Illinois · 120E & 150N to 186N · Structure no. 016613500000000

Built
1956
69 years old, rebuilt 1976
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
378 ft
10 main spans
Daily traffic
7,600
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Beaubien over Lower Level Beaubien is a steel stringer/multi-beam or girder carrying Beaubien over Lower Level Beaubien in Cook County, Illinois. It was built in 1956 and reconstructed in 1976, so it is 69 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 7,600 vehicles a day, roughly 19% of them trucks, projected to reach 7,676 by 2046. The structure is 378 ft (115.3 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesBeaubien
CrossesLower Level Beaubien
Location120E & 150N to 186N
CountyCook County
StateIllinois
Coordinates41.88516, -87.62391
Functional classUrban Collector

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 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 alignment6: Equal to present minimum criteria
Operating rating66 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length378 ft (115.3 m)
Longest span41 ft (12.6 m)
Deck width50 ft (15.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,600 (2018)
Projected traffic7,676 by 2046
Trucks19%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Beaubien over Lower Level Beaubien built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1976.

What condition is Beaubien over Lower Level Beaubien 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 Beaubien over Lower Level Beaubien carry?

About 7,600 vehicles per day (2018 count), of which roughly 19% are trucks.

How long is Beaubien over Lower Level Beaubien?

The structure is 378 ft (115.3 m) long with a longest span of 41 ft (12.6 m) and a deck 50 ft wide.

Who owns Beaubien over Lower Level Beaubien?

It is owned by the City or Municipal Highway Agency.