US Bridges

Clark ST over Unused Land

Fair

Cook County, Illinois · 200W.& 1200S. · Structure no. 016612800000000

Built
1921
104 years old, rebuilt 1984
Condition
Fair
inspected June 2023
Type
Slab
Prestressed Concrete
Length
551 ft
1 main span
Daily traffic
11,500
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Clark ST over Unused Land is a prestressed concrete slab carrying Clark ST over Unused Land in Cook County, Illinois. It was built in 1921 and reconstructed in 1984, so it is 104 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 11,500 vehicles a day, roughly 4% of them trucks, projected to reach 12,221 by 2046. The structure is 551 ft (167.9 m) long and 84 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesClark ST
CrossesUnused Land
Location200W.& 1200S.
CountyCook County
StateIllinois
Coordinates41.86719, -87.63043
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+3 approach)
Design loadHS 20
Structure length551 ft (167.9 m)
Longest span78 ft (23.8 m)
Deck width84 ft (25.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2022)
Projected traffic12,221 by 2046
Trucks4%
Lanes on structure2
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Clark ST over Unused Land built?

It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1984.

What condition is Clark ST over Unused Land 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 2023.

How much traffic does Clark ST over Unused Land carry?

About 11,500 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Clark ST over Unused Land?

The structure is 551 ft (167.9 m) long with a longest span of 78 ft (23.8 m) and a deck 84 ft wide.

Who owns Clark ST over Unused Land?

It is owned by the City or Municipal Highway Agency.