US Bridges

143rd ST over Br of Tinley Creek

Poor

Cook County, Illinois · 0.75 W Central P3 · Structure no. 016306900000000

Built
1931
94 years old, rebuilt 1997
Condition
Poor
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
14,300
2022 count
Owner
County
County Highway Agency

About this bridge

143rd ST over Br of Tinley Creek is a prestressed concrete box beam or girders - multiple carrying 143rd ST over Br of Tinley Creek in Cook County, Illinois. It was built in 1931 and reconstructed in 1997, so it is 94 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 14,300 vehicles a day, roughly 13% of them trucks, projected to reach 14,443 by 2046. The structure is 32 ft (9.8 m) long and 74 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries143rd ST
CrossesBr of Tinley Creek
Location0.75 W Central P3
Coordinates41.63196, -87.77227
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.4 US tons
Inventory rating51.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span28 ft (8.5 m)
Deck width74 ft (22.7 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,300 (2022)
Projected traffic14,443 by 2046
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 143rd ST over Br of Tinley Creek built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1997.

What condition is 143rd ST over Br of Tinley Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does 143rd ST over Br of Tinley Creek carry?

About 14,300 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is 143rd ST over Br of Tinley Creek?

The structure is 32 ft (9.8 m) long with a longest span of 28 ft (8.5 m) and a deck 74 ft wide.

Who owns 143rd ST over Br of Tinley Creek?

It is owned by the County Highway Agency.