US Bridges

US 20 (lake St) over Westwood Creek

Good

DuPage County, Illinois · 0.60 M NW Addison RD · Structure no. 022017500000000

Built
2006
19 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
37 ft
3 main spans
Daily traffic
28,400
2023 count
Owner
State
State Highway Agency

About this bridge

US 20 (lake St) over Westwood Creek is a concrete continuous 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 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 28,400 vehicles a day, roughly 4% of them trucks, projected to reach 28,078 by 2046. The structure is 37 ft (11.4 m) long.

Location

Open in Google Maps
CarriesUS 20 (lake St)
CrossesWestwood Creek
Location0.60 M NW Addison RD
RouteU.S. Route 20
CountyDuPage County
StateIllinois
Coordinates41.93644, -87.99857
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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating97.1 US tons
Inventory rating58.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadUnknown
Structure length37 ft (11.4 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,400 (2023)
Projected traffic28,078 by 2046
Trucks4%
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 28,400 vehicles per day (2023 count), of which roughly 4% are trucks.

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

The structure is 37 ft (11.4 m) long with a longest span of 11 ft (3.3 m).

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

It is owned by the State Highway Agency.