US Bridges

Argyle ST over N.Branch Chgo River

Fair

Cook County, Illinois · 5000 N & 3000 W · Structure no. 016607200000000

Built
1909
116 years old, rebuilt 1975
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
152 ft
3 main spans
Daily traffic
1,475
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Argyle ST over N.Branch Chgo River is a steel continuous stringer/multi-beam or girder carrying Argyle ST over N.Branch Chgo River in Cook County, Illinois. It was built in 1909 and reconstructed in 1975, so it is 116 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 1,475 vehicles a day, roughly 9% of them trucks, projected to reach 2,374 by 2046. The structure is 152 ft (46.2 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesArgyle ST
CrossesN.Branch Chgo River
Location5000 N & 3000 W
RouteCity Street 0
CountyCook County
StateIllinois
Coordinates41.97212, -87.70381
Functional classUrban Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length152 ft (46.2 m)
Longest span73 ft (22.3 m)
Deck width40 ft (12.3 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,475 (2022)
Projected traffic2,374 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$951,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Argyle ST over N.Branch Chgo River built?

It was built in 1909, making it 116 years old in 2025. It was reconstructed in 1975.

What condition is Argyle ST over N.Branch Chgo River 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 July 2023.

How much traffic does Argyle ST over N.Branch Chgo River carry?

About 1,475 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Argyle ST over N.Branch Chgo River?

The structure is 152 ft (46.2 m) long with a longest span of 73 ft (22.3 m) and a deck 40 ft wide.

Who owns Argyle ST over N.Branch Chgo River?

It is owned by the City or Municipal Highway Agency.