US Bridges

Lake Cook RD over Skokie River

FairPosted for load

Cook County, Illinois · 0.2 M E US 41 P14 · Structure no. 016305700000000

Built
1932
93 years old, rebuilt 1989
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
13,900
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lake Cook RD over Skokie River is a steel stringer/multi-beam or girder carrying Lake Cook RD over Skokie River in Cook County, Illinois. It was built in 1932 and reconstructed in 1989, so it is 93 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. Its operating status is: posted for load restriction.

It carries about 13,900 vehicles a day, roughly 5% of them trucks, projected to reach 11,110 by 2046. The structure is 54 ft (16.5 m) long and 64 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLake Cook RD
CrossesSkokie River
Location0.2 M E US 41 P14
Coordinates42.15249, -87.79397
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
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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating37.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length54 ft (16.5 m)
Longest span50 ft (15.2 m)
Deck width64 ft (19.5 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,900 (2022)
Projected traffic11,110 by 2046
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lake Cook RD over Skokie River built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1989.

What condition is Lake Cook RD over Skokie 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 September 2024.

How much traffic does Lake Cook RD over Skokie River carry?

About 13,900 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Lake Cook RD over Skokie River?

The structure is 54 ft (16.5 m) long with a longest span of 50 ft (15.2 m) and a deck 64 ft wide.

Who owns Lake Cook RD over Skokie River?

It is owned by the City or Municipal Highway Agency.