US Bridges

Il 1 (halsted ST over I- 57

Fair

Cook County, Illinois · Halsted & 99th ST · Structure no. 016203600000000

Built
1962
63 years old, rebuilt 2004
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
170 ft
3 main spans
Daily traffic
25,800
2023 count
Owner
State
State Highway Agency

About this bridge

Il 1 (halsted ST over I- 57 is a steel continuous stringer/multi-beam or girder carrying Il 1 (halsted ST over I- 57 in Cook County, Illinois. It was built in 1962 and reconstructed in 2004, so it is 63 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 25,800 vehicles a day, roughly 9% of them trucks, projected to reach 25,048 by 2046. The structure is 170 ft (51.8 m) long and 108 ft wide.

Location

Open in Google Maps
CarriesIl 1 (halsted ST
CrossesI- 57
LocationHalsted & 99th ST
RouteState Highway 1
CountyCook County
StateIllinois
Coordinates41.71453, -87.64314
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 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 rating91.4 US tons
Inventory rating54.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length170 ft (51.8 m)
Longest span62 ft (18.8 m)
Deck width108 ft (32.9 m)
Roadway width90 ft (27.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,800 (2023)
Projected traffic25,048 by 2046
Trucks9%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2.3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Il 1 (halsted ST over I- 57 built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2004.

What condition is Il 1 (halsted ST over I- 57 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 August 2024.

How much traffic does Il 1 (halsted ST over I- 57 carry?

About 25,800 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Il 1 (halsted ST over I- 57?

The structure is 170 ft (51.8 m) long with a longest span of 62 ft (18.8 m) and a deck 108 ft wide.

Who owns Il 1 (halsted ST over I- 57?

It is owned by the State Highway Agency.