US Bridges

Il 171 (archer Ave over RR - Ihb

Good

Cook County, Illinois · At 60th Pl · Structure no. 016260700000000

Built
1995
30 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
134 ft
3 main spans
Daily traffic
28,400
2023 count
Owner
State
State Highway Agency

About this bridge

Il 171 (archer Ave over RR - Ihb is a steel continuous stringer/multi-beam or girder carrying Il 171 (archer Ave over RR - Ihb in Cook County, Illinois. It was built in 1995, so it is 30 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 28,400 vehicles a day, roughly 12% of them trucks, projected to reach 26,967 by 2046. The structure is 134 ft (40.7 m) long and 63 ft wide.

Location

Open in Google Maps
CarriesIl 171 (archer Ave
CrossesRR - Ihb
LocationAt 60th Pl
RouteState Highway 171
CountyCook County
StateIllinois
Coordinates41.78379, -87.81173
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating84.3 US tons
Inventory rating50.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length134 ft (40.7 m)
Longest span48 ft (14.6 m)
Deck width63 ft (19.2 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,400 (2023)
Projected traffic26,967 by 2046
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 (archer Ave over RR - Ihb built?

It was built in 1995, making it 30 years old in 2025.

What condition is Il 171 (archer Ave over RR - Ihb 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 October 2023.

How much traffic does Il 171 (archer Ave over RR - Ihb carry?

About 28,400 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Il 171 (archer Ave over RR - Ihb?

The structure is 134 ft (40.7 m) long with a longest span of 48 ft (14.6 m) and a deck 63 ft wide.

Who owns Il 171 (archer Ave over RR - Ihb?

It is owned by the State Highway Agency.