US Bridges

Lake Shore Drive over Diversey Harbor Inlt

Fair

Cook County, Illinois · 2800 N & 500 E · Structure no. 016619200000000

Built
1940
85 years old
Condition
Fair
inspected October 2023
Type
Frame
Steel
Length
69 ft
1 main span
Daily traffic
110,300
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lake Shore Drive over Diversey Harbor Inlt is a steel frame carrying Lake Shore Drive over Diversey Harbor Inlt in Cook County, Illinois. It was built in 1940, so it is 85 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 110,300 vehicles a day, roughly 2% of them trucks, projected to reach 110,595 by 2046. The structure is 69 ft (20.9 m) long and 125 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesLake Shore Drive
CrossesDiversey Harbor Inlt
Location2800 N & 500 E
RouteU.S. Route 41
CountyCook County
StateIllinois
Coordinates41.93266, -87.6321
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating30.3 US tons

Structure

Structure typeFrame
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length69 ft (20.9 m)
Longest span69 ft (20.9 m)
Deck width125 ft (38.2 m)
Roadway width92 ft (28 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110,300 (2024)
Projected traffic110,595 by 2046
Trucks2%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lake Shore Drive over Diversey Harbor Inlt built?

It was built in 1940, making it 85 years old in 2025.

What condition is Lake Shore Drive over Diversey Harbor Inlt 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 October 2023.

How much traffic does Lake Shore Drive over Diversey Harbor Inlt carry?

About 110,300 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Lake Shore Drive over Diversey Harbor Inlt?

The structure is 69 ft (20.9 m) long with a longest span of 69 ft (20.9 m) and a deck 125 ft wide.

Who owns Lake Shore Drive over Diversey Harbor Inlt?

It is owned by the City or Municipal Highway Agency.