US Bridges

Illinois Street over Fox River

Fair

Kane County, Illinois · 0.2 MI S Ill 64 · Structure no. 045685100000000

Built
1958
67 years old, rebuilt 1987
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
228 ft
3 main spans
Daily traffic
4,350
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Illinois Street over Fox River is a steel stringer/multi-beam or girder carrying Illinois Street over Fox River in Kane County, Illinois. It was built in 1958 and reconstructed in 1987, so it is 67 years old, older 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 6 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 4,350 vehicles a day, roughly 6% of them trucks, projected to reach 3,721 by 2046. The structure is 228 ft (69.5 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIllinois Street
CrossesFox River
Location0.2 MI S Ill 64
Coordinates41.91258, -88.31097
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating52.1 US tons
Inventory rating27.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length228 ft (69.5 m)
Longest span75 ft (22.9 m)
Deck width68 ft (20.8 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,350 (2023)
Projected traffic3,721 by 2046
Trucks6%
Lanes on structure4
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 Illinois Street over Fox River built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1987.

What condition is Illinois Street over Fox River 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 May 2024.

How much traffic does Illinois Street over Fox River carry?

About 4,350 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Illinois Street over Fox River?

The structure is 228 ft (69.5 m) long with a longest span of 75 ft (22.9 m) and a deck 68 ft wide.

Who owns Illinois Street over Fox River?

It is owned by the City or Municipal Highway Agency.