US Bridges

Happ Road over Skokie River

Good

Cook County, Illinois · 0.5 MI S of Winnetka · Structure no. 016305600000000

Built
2017
8 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete Continuous
Length
75 ft
3 main spans
Daily traffic
3,700
2022 count
Owner
County
County Highway Agency

About this bridge

Happ Road over Skokie River is a concrete continuous slab carrying Happ Road over Skokie River in Cook County, Illinois. It was built in 2017, so it is 8 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,700 vehicles a day, roughly 3% of them trucks, projected to reach 4,141 by 2046. The structure is 75 ft (22.9 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHapp Road
CrossesSkokie River
Location0.5 MI S of Winnetka
CountyCook County
StateIllinois
Coordinates42.08655, -87.7663
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating62.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length75 ft (22.9 m)
Longest span27 ft (8.2 m)
Deck width42 ft (12.9 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,700 (2022)
Projected traffic4,141 by 2046
Trucks3%
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

OwnerCounty Highway Agency
Maintained byCounty 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 Happ Road over Skokie River built?

It was built in 2017, making it 8 years old in 2025.

What condition is Happ Road over Skokie River 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 November 2023.

How much traffic does Happ Road over Skokie River carry?

About 3,700 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Happ Road over Skokie River?

The structure is 75 ft (22.9 m) long with a longest span of 27 ft (8.2 m) and a deck 42 ft wide.

Who owns Happ Road over Skokie River?

It is owned by the County Highway Agency.