US Bridges

Ryan NB Frnt RD B over Chinatown Feeder

Good

Cook County, Illinois · 0.2 M S I-55 · Structure no. 016109300000000

Built
1964
61 years old, rebuilt 2009
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
277 ft
3 main spans
Daily traffic
4,100
2022 count
Owner
State
State Highway Agency

About this bridge

Ryan NB Frnt RD B over Chinatown Feeder is a steel continuous stringer/multi-beam or girder carrying Ryan NB Frnt RD B over Chinatown Feeder in Cook County, Illinois. It was built in 1964 and reconstructed in 2009, so it is 61 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 4,100 vehicles a day, roughly 6% of them trucks, projected to reach 6,464 by 2046. The structure is 277 ft (84.4 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesRyan NB Frnt RD B
CrossesChinatown Feeder
Location0.2 M S I-55
CountyCook County
StateIllinois
Coordinates41.84471, -87.6317
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.8 US tons
Inventory rating57.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length277 ft (84.4 m)
Longest span110 ft (33.5 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,100 (2022)
Projected traffic6,464 by 2046
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ryan NB Frnt RD B over Chinatown Feeder built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2009.

What condition is Ryan NB Frnt RD B over Chinatown Feeder 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 2024.

How much traffic does Ryan NB Frnt RD B over Chinatown Feeder carry?

About 4,100 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Ryan NB Frnt RD B over Chinatown Feeder?

The structure is 277 ft (84.4 m) long with a longest span of 110 ft (33.5 m) and a deck 30 ft wide.

Who owns Ryan NB Frnt RD B over Chinatown Feeder?

It is owned by the State Highway Agency.