US Bridges

Ill 94 & 135 over Henderson CR

Fair

Warren County, Illinois · 2 MI N Little York · Structure no. 094001600000000

Built
1931
94 years old, rebuilt 1985
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
294 ft
3 main spans
Daily traffic
1,300
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 94 & 135 over Henderson CR is a steel continuous stringer/multi-beam or girder carrying Ill 94 & 135 over Henderson CR in Warren County, Illinois. It was built in 1931 and reconstructed in 1985, so it is 94 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 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 1,300 vehicles a day, roughly 15% of them trucks, projected to reach 1,212 by 2046. The structure is 294 ft (89.6 m) long and 35 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

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CarriesIll 94 & 135
CrossesHenderson CR
Location2 MI N Little York
RouteState Highway 94
CountyWarren County
StateIllinois
Coordinates41.04353, -90.74585
Functional classRural 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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating60 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20
Structure length294 ft (89.6 m)
Longest span82 ft (25 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2023)
Projected traffic1,212 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Ill 94 & 135 over Henderson CR built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1985.

What condition is Ill 94 & 135 over Henderson CR 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 July 2023.

How much traffic does Ill 94 & 135 over Henderson CR carry?

About 1,300 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Ill 94 & 135 over Henderson CR?

The structure is 294 ft (89.6 m) long with a longest span of 82 ft (25 m) and a deck 35 ft wide.

Who owns Ill 94 & 135 over Henderson CR?

It is owned by the State Highway Agency.