US Bridges

Washington ST over US 41

Fair

Lake County, Illinois · 1 M S of Il 132 · Structure no. 049001600000000

Built
1961
64 years old, rebuilt 1996
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
206 ft
4 main spans
Daily traffic
16,400
2023 count
Owner
State
State Highway Agency

About this bridge

Washington ST over US 41 is a steel continuous stringer/multi-beam or girder carrying Washington ST over US 41 in Lake County, Illinois. It was built in 1961 and reconstructed in 1996, 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 5 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 16,400 vehicles a day, roughly 5% of them trucks, projected to reach 39,289 by 2046. The structure is 206 ft (62.8 m) long and 66 ft wide.

Location

Open in Google Maps
CarriesWashington ST
CrossesUS 41
Location1 M S of Il 132
CountyLake County
StateIllinois
Coordinates42.35959, -87.89597
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.2 US tons
Inventory rating41.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length206 ft (62.8 m)
Longest span64 ft (19.5 m)
Deck width66 ft (20.1 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,400 (2023)
Projected traffic39,289 by 2046
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Washington ST over US 41 built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1996.

What condition is Washington ST over US 41 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 February 2024.

How much traffic does Washington ST over US 41 carry?

About 16,400 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Washington ST over US 41?

The structure is 206 ft (62.8 m) long with a longest span of 64 ft (19.5 m) and a deck 66 ft wide.

Who owns Washington ST over US 41?

It is owned by the State Highway Agency.