US Bridges

Wabash Ave over Main Br Chicago Riv

Poor

Cook County, Illinois · 44 E & 326 N · Structure no. 016605200000000

Built
1930
95 years old, rebuilt 2002
Condition
Poor
inspected September 2023
Type
Movable - Bascule
Steel
Length
348 ft
1 main span
Daily traffic
7,350
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Wabash Ave over Main Br Chicago Riv is a steel movable - bascule carrying Wabash Ave over Main Br Chicago Riv in Cook County, Illinois. It was built in 1930 and reconstructed in 2002, so it is 95 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 7,350 vehicles a day, roughly 13% of them trucks, projected to reach 8,989 by 2046. The structure is 348 ft (106.2 m) long and 90 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWabash Ave
CrossesMain Br Chicago Riv
Location44 E & 326 N
Coordinates41.88746, -87.62655
Functional classUrban Collector

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeMovable - Bascule
MaterialSteel
DeckClosed grating
Main spans1 (+3 approach)
Design loadHS 20
Structure length348 ft (106.2 m)
Longest span269 ft (82 m)
Deck width90 ft (27.4 m)
Roadway width57 ft (17.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,350 (2022)
Projected traffic8,989 by 2046
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.6 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Wabash Ave over Main Br Chicago Riv built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2002.

What condition is Wabash Ave over Main Br Chicago Riv 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 September 2023.

How much traffic does Wabash Ave over Main Br Chicago Riv carry?

About 7,350 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Wabash Ave over Main Br Chicago Riv?

The structure is 348 ft (106.2 m) long with a longest span of 269 ft (82 m) and a deck 90 ft wide.

Who owns Wabash Ave over Main Br Chicago Riv?

It is owned by the City or Municipal Highway Agency.