US Bridges

Farnsworth Ave. over Waubansee Creek

Fair

Kane County, Illinois · 0.5 M N of US-34 · Structure no. 045313800000000

Built
1989
36 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
3,300
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Farnsworth Ave. over Waubansee Creek is a prestressed concrete box beam or girders - multiple carrying Farnsworth Ave. over Waubansee Creek in Kane County, Illinois. It was built in 1989, so it is 36 years old, younger 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,300 vehicles a day, roughly 3% of them trucks, projected to reach 4,392 by 2046. The structure is 55 ft (16.9 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesFarnsworth Ave.
CrossesWaubansee Creek
Location0.5 M N of US-34
CountyKane County
StateIllinois
Coordinates41.72843, -88.28067
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating30.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length55 ft (16.9 m)
Longest span53 ft (16.1 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (2023)
Projected traffic4,392 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

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 Farnsworth Ave. over Waubansee Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Farnsworth Ave. over Waubansee Creek 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 October 2024.

How much traffic does Farnsworth Ave. over Waubansee Creek carry?

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

How long is Farnsworth Ave. over Waubansee Creek?

The structure is 55 ft (16.9 m) long with a longest span of 53 ft (16.1 m) and a deck 28 ft wide.

Who owns Farnsworth Ave. over Waubansee Creek?

It is owned by the City or Municipal Highway Agency.