US Bridges

Lasalle St. over Parking Area

Poor

Cook County, Illinois · 140 W. and 330 N. · Structure no. 016611900000000

Built
1928
97 years old, rebuilt 1983
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
351 ft
13 main spans
Daily traffic
18,600
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lasalle St. over Parking Area is a steel stringer/multi-beam or girder carrying Lasalle St. over Parking Area in Cook County, Illinois. It was built in 1928 and reconstructed in 1983, so it is 97 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 3 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 18,600 vehicles a day, roughly 5% of them trucks, projected to reach 12,373 by 2046. The structure is 351 ft (107 m) long and 120 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLasalle St.
CrossesParking Area
Location140 W. and 330 N.
CountyCook County
StateIllinois
Coordinates41.8886, -87.63263
Functional classUrban Other Principal 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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating8.6 US tons
Inventory rating5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans13
Design loadHS 20
Structure length351 ft (107 m)
Longest span40 ft (12.3 m)
Deck width120 ft (36.6 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,600 (2022)
Projected traffic12,373 by 2046
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$6.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lasalle St. over Parking Area built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1983.

What condition is Lasalle St. over Parking Area 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 June 2024.

How much traffic does Lasalle St. over Parking Area carry?

About 18,600 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Lasalle St. over Parking Area?

The structure is 351 ft (107 m) long with a longest span of 40 ft (12.3 m) and a deck 120 ft wide.

Who owns Lasalle St. over Parking Area?

It is owned by the City or Municipal Highway Agency.