US Bridges

E Main Street over Fox River

Fair

LaSalle County, Illinois · 400FT E of Ill 23 NB · Structure no. 050740000000000

Built
1922
103 years old, rebuilt 1997
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
235 ft
3 main spans
Daily traffic
3,550
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

E Main Street over Fox River is a steel continuous stringer/multi-beam or girder carrying E Main Street over Fox River in LaSalle County, Illinois. It was built in 1922 and reconstructed in 1997, so it is 103 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 3,550 vehicles a day, roughly 2% of them trucks, projected to reach 3,586 by 2046. The structure is 235 ft (71.6 m) long and 56 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesE Main Street
CrossesFox River
Location400FT E of Ill 23 NB
Coordinates41.34576, -88.84022
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 48 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length235 ft (71.6 m)
Longest span80 ft (24.3 m)
Deck width56 ft (17.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,550 (2020)
Projected traffic3,586 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 E Main Street over Fox River built?

It was built in 1922, making it 103 years old in 2025. It was reconstructed in 1997.

What condition is E Main 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 March 2023.

How much traffic does E Main Street over Fox River carry?

About 3,550 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is E Main Street over Fox River?

The structure is 235 ft (71.6 m) long with a longest span of 80 ft (24.3 m) and a deck 56 ft wide.

Who owns E Main Street over Fox River?

It is owned by the City or Municipal Highway Agency.