US Bridges

Lake Shore DR over Michigan Ave NB

Fair

Cook County, Illinois · 1100 N. & 100 E. · Structure no. 016026200000000

Built
1964
61 years old
Condition
Fair
inspected July 2024
Type
Frame
Concrete
Length
39 ft
1 main span
Daily traffic
107,300
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lake Shore DR over Michigan Ave NB is a concrete frame carrying Lake Shore DR over Michigan Ave NB in Cook County, Illinois. It was built in 1964, 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 6 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 107,300 vehicles a day, roughly 1% of them trucks, projected to reach 108,474 by 2046. The structure is 39 ft (11.9 m) long and 130 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLake Shore DR
CrossesMichigan Ave NB
Location1100 N. & 100 E.
RouteU.S. Route 41
CountyCook County
StateIllinois
Coordinates41.90223, -87.62383
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating41.1 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length39 ft (11.9 m)
Longest span36 ft (11 m)
Deck width130 ft (39.6 m)
Roadway width118 ft (36 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic107,300 (2024)
Projected traffic108,474 by 2046
Trucks1%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$479,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lake Shore DR over Michigan Ave NB built?

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

What condition is Lake Shore DR over Michigan Ave NB 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 July 2024.

How much traffic does Lake Shore DR over Michigan Ave NB carry?

About 107,300 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Lake Shore DR over Michigan Ave NB?

The structure is 39 ft (11.9 m) long with a longest span of 36 ft (11 m) and a deck 130 ft wide.

Who owns Lake Shore DR over Michigan Ave NB?

It is owned by the City or Municipal Highway Agency.