US Bridges

US 20 (lake St) over Westwood Creek

Good

DuPage County, Illinois · 1.1 M E of Il 53 · Structure no. 022004900000000

Built
2006
19 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
21 ft
4 main spans
Daily traffic
31,300
2023 count
Owner
State
State Highway Agency

About this bridge

US 20 (lake St) over Westwood Creek is a concrete culvert carrying US 20 (lake St) over Westwood Creek in DuPage County, Illinois. It was built in 2006, so it is 19 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 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 31,300 vehicles a day, roughly 3% of them trucks, projected to reach 29,694 by 2046. The structure is 21 ft (6.4 m) long and 107 ft wide.

Location

Open in Google Maps
CarriesUS 20 (lake St)
CrossesWestwood Creek
Location1.1 M E of Il 53
RouteU.S. Route 20
CountyDuPage County
StateIllinois
Coordinates41.94593, -88.02129
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width107 ft (32.5 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,300 (2023)
Projected traffic29,694 by 2046
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 20 (lake St) over Westwood Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is US 20 (lake St) over Westwood Creek 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 August 2023.

How much traffic does US 20 (lake St) over Westwood Creek carry?

About 31,300 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is US 20 (lake St) over Westwood Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 107 ft wide.

Who owns US 20 (lake St) over Westwood Creek?

It is owned by the State Highway Agency.