US Bridges

Root ST over I- 90 94 Ryan & Cta

Fair

Cook County, Illinois · 2 M S I-55 · Structure no. 016115400000000

Built
1961
64 years old, rebuilt 2009
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
428 ft
5 main spans
Daily traffic
3,300
2022 count
Owner
State
State Highway Agency

About this bridge

Root ST over I- 90 94 Ryan & Cta is a steel continuous stringer/multi-beam or girder carrying Root ST over I- 90 94 Ryan & Cta in Cook County, Illinois. It was built in 1961 and reconstructed in 2009, so it is 64 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 3,300 vehicles a day, roughly 15% of them trucks, projected to reach 1,768 by 2046. The structure is 428 ft (130.6 m) long and 67 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoot ST
CrossesI- 90 94 Ryan & Cta
Location2 M S I-55
CountyCook County
StateIllinois
Coordinates41.81915, -87.63076
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionNovember 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 alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5 (+2 approach)
Design loadHS 20
Structure length428 ft (130.6 m)
Longest span72 ft (22 m)
Deck width67 ft (20.3 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (2022)
Projected traffic1,768 by 2046
Trucks15%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
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$2.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Root ST over I- 90 94 Ryan & Cta built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2009.

What condition is Root ST over I- 90 94 Ryan & Cta 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 November 2023.

How much traffic does Root ST over I- 90 94 Ryan & Cta carry?

About 3,300 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Root ST over I- 90 94 Ryan & Cta?

The structure is 428 ft (130.6 m) long with a longest span of 72 ft (22 m) and a deck 67 ft wide.

Who owns Root ST over I- 90 94 Ryan & Cta?

It is owned by the State Highway Agency.