US Bridges

Il 171 WB Archer a over I-294

Good

Cook County, Illinois · 0.5 M E of US 12/45 · Structure no. 016187100000000

Built
2021
4 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
367 ft
2 main spans
Daily traffic
10,750
2022 count
Owner
State
State Highway Agency

About this bridge

Il 171 WB Archer a over I-294 is a steel continuous stringer/multi-beam or girder carrying Il 171 WB Archer a over I-294 in Cook County, Illinois. It was built in 2021, so it is 4 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,750 vehicles a day, roughly 15% of them trucks, projected to reach 8,181 by 2046. The structure is 367 ft (111.8 m) long and 57 ft wide.

CarriesIl 171 WB Archer a
CrossesI-294
Location0.5 M E of US 12/45
Coordinates41.74687, -87.84421
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.9 US tons
Inventory rating44.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length367 ft (111.8 m)
Longest span178 ft (54.2 m)
Deck width57 ft (17.4 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,750 (2022)
Projected traffic8,181 by 2046
Trucks15%
Lanes on structure3
Traffic directionOne-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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Il 171 WB Archer a over I-294 built?

It was built in 2021, making it 4 years old in 2025.

What condition is Il 171 WB Archer a over I-294 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does Il 171 WB Archer a over I-294 carry?

About 10,750 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Il 171 WB Archer a over I-294?

The structure is 367 ft (111.8 m) long with a longest span of 178 ft (54.2 m) and a deck 57 ft wide.

Who owns Il 171 WB Archer a over I-294?

It is owned by the State Highway Agency.