US Bridges

Willow Lane over Blackberry Creek

Good

Kendall County, Illinois · .1 MI N of Galena RD · Structure no. 047314600000000

Built
1996
29 years old, rebuilt 2012
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
104 ft
3 main spans
Daily traffic
800
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Willow Lane over Blackberry Creek is a prestressed concrete box beam or girders - multiple carrying Willow Lane over Blackberry Creek in Kendall County, Illinois. It was built in 1996 and reconstructed in 2012, so it is 29 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 800 vehicles a day, roughly 11% of them trucks, projected to reach 898 by 2046. The structure is 104 ft (31.6 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesWillow Lane
CrossesBlackberry Creek
Location.1 MI N of Galena RD
RouteCounty Highway 0
Coordinates41.7031, -88.40519
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length104 ft (31.6 m)
Longest span34 ft (10.4 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2024)
Projected traffic898 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Willow Lane over Blackberry Creek built?

It was built in 1996, making it 29 years old in 2025. It was reconstructed in 2012.

What condition is Willow Lane over Blackberry 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 December 2023.

How much traffic does Willow Lane over Blackberry Creek carry?

About 800 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Willow Lane over Blackberry Creek?

The structure is 104 ft (31.6 m) long with a longest span of 34 ft (10.4 m) and a deck 30 ft wide.

Who owns Willow Lane over Blackberry Creek?

It is owned by the Town or Township Highway Agency.