US Bridges

Cottage Grove Ave over I- 94 Bishop Ford

Good

Cook County, Illinois · 1.2 M SE I-57 · Structure no. 016211900000000

Built
1960
65 years old, rebuilt 2011
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
175 ft
3 main spans
Daily traffic
6,100
2022 count
Owner
State
State Highway Agency

About this bridge

Cottage Grove Ave over I- 94 Bishop Ford is a steel continuous stringer/multi-beam or girder carrying Cottage Grove Ave over I- 94 Bishop Ford in Cook County, Illinois. It was built in 1960 and reconstructed in 2011, so it is 65 years old, older 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 6,100 vehicles a day, roughly 6% of them trucks, projected to reach 7,424 by 2046. The structure is 175 ft (53.4 m) long and 71 ft wide.

Location

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CarriesCottage Grove Ave
CrossesI- 94 Bishop Ford
Location1.2 M SE I-57
CountyCook County
StateIllinois
Coordinates41.71377, -87.60509
Functional classUrban Collector

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.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2024
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 alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating69.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length175 ft (53.4 m)
Longest span66 ft (20.1 m)
Deck width71 ft (21.6 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,100 (2022)
Projected traffic7,424 by 2046
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cottage Grove Ave over I- 94 Bishop Ford built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2011.

What condition is Cottage Grove Ave over I- 94 Bishop Ford 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 January 2024.

How much traffic does Cottage Grove Ave over I- 94 Bishop Ford carry?

About 6,100 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Cottage Grove Ave over I- 94 Bishop Ford?

The structure is 175 ft (53.4 m) long with a longest span of 66 ft (20.1 m) and a deck 71 ft wide.

Who owns Cottage Grove Ave over I- 94 Bishop Ford?

It is owned by the State Highway Agency.