US Bridges

Harbor Drive over Parking Garage

Fair

Cook County, Illinois · 200N 450E · Structure no. 016614700000000

Built
1973
52 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
422 ft
20 main spans
Daily traffic
2,850
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Harbor Drive over Parking Garage is a concrete continuous slab carrying Harbor Drive over Parking Garage in Cook County, Illinois. It was built in 1973, so it is 52 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 2,850 vehicles a day, roughly 6% of them trucks, projected to reach 3,283 by 2046. The structure is 422 ft (128.7 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHarbor Drive
CrossesParking Garage
Location200N 450E
RouteCity Street 0
CountyCook County
StateIllinois
Coordinates41.88574, -87.61572
Functional classUrban Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating27.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans20
Design loadUnknown
Structure length422 ft (128.7 m)
Longest span32 ft (9.8 m)
Deck width66 ft (20.1 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,850 (2022)
Projected traffic3,283 by 2046
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Harbor Drive over Parking Garage built?

It was built in 1973, making it 52 years old in 2025.

What condition is Harbor Drive over Parking Garage 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 2024.

How much traffic does Harbor Drive over Parking Garage carry?

About 2,850 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Harbor Drive over Parking Garage?

The structure is 422 ft (128.7 m) long with a longest span of 32 ft (9.8 m) and a deck 66 ft wide.

Who owns Harbor Drive over Parking Garage?

It is owned by the City or Municipal Highway Agency.