US Bridges

Sullivan Road over Fox River

Fair

Kane County, Illinois · Il Rt 31 to Il Rt 25 · Structure no. 045601800000000

Built
2006
19 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
693 ft
5 main spans
Daily traffic
10,500
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sullivan Road over Fox River is a steel continuous stringer/multi-beam or girder carrying Sullivan Road over Fox River in Kane 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 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 10,500 vehicles a day, roughly 17% of them trucks, projected to reach 14,274 by 2046. The structure is 693 ft (211.3 m) long and 72 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSullivan Road
CrossesFox River
LocationIl Rt 31 to Il Rt 25
CountyKane County
StateIllinois
Coordinates41.7889, -88.31822
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length693 ft (211.3 m)
Longest span164 ft (50 m)
Deck width72 ft (21.8 m)
Roadway width53 ft (16.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2023)
Projected traffic14,274 by 2046
Trucks17%
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 Sullivan Road over Fox River built?

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

What condition is Sullivan Road 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 September 2023.

How much traffic does Sullivan Road over Fox River carry?

About 10,500 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is Sullivan Road over Fox River?

The structure is 693 ft (211.3 m) long with a longest span of 164 ft (50 m) and a deck 72 ft wide.

Who owns Sullivan Road over Fox River?

It is owned by the City or Municipal Highway Agency.