US Bridges

Ill 94 over N. Henderson CR

Fair

Mercer County, Illinois · 2.4 MI N of Ill 135 · Structure no. 066001000000000

Built
1924
101 years old, rebuilt 1985
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
103 ft
2 main spans
Daily traffic
1,250
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 94 over N. Henderson CR is a steel continuous stringer/multi-beam or girder carrying Ill 94 over N. Henderson CR in Mercer County, Illinois. It was built in 1924 and reconstructed in 1985, so it is 101 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 1,250 vehicles a day, roughly 13% of them trucks, projected to reach 1,162 by 2046. The structure is 103 ft (31.4 m) long and 34 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesIll 94
CrossesN. Henderson CR
Location2.4 MI N of Ill 135
RouteState Highway 94
CountyMercer County
StateIllinois
Coordinates41.10299, -90.74472
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.5 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length103 ft (31.4 m)
Longest span59 ft (18 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,250 (2023)
Projected traffic1,162 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 over N. Henderson CR built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 1985.

What condition is Ill 94 over N. 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 February 2024.

How much traffic does Ill 94 over N. Henderson CR carry?

About 1,250 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Ill 94 over N. Henderson CR?

The structure is 103 ft (31.4 m) long with a longest span of 59 ft (18 m) and a deck 34 ft wide.

Who owns Ill 94 over N. Henderson CR?

It is owned by the State Highway Agency.