US Bridges

FAI 74WB over Henderson Creek

Fair

Knox County, Illinois · 5.4 MI S Henry CO Li · Structure no. 048009100000000

Built
2015
10 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
104 ft
1 main span
Daily traffic
8,150
2023 count
Owner
State
State Highway Agency

About this bridge

FAI 74WB over Henderson Creek is a prestressed concrete stringer/multi-beam or girder carrying FAI 74WB over Henderson Creek in Knox County, Illinois. It was built in 2015, so it is 10 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 8,150 vehicles a day, roughly 33% of them trucks, projected to reach 7,575 by 2046. The structure is 104 ft (31.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFAI 74WB
CrossesHenderson Creek
Location5.4 MI S Henry CO Li
RouteInterstate 74
CountyKnox County
StateIllinois
Coordinates41.07283, -90.33471
Functional classRural Principal Arterial - Interstate

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.9 US tons
Inventory rating60.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length104 ft (31.6 m)
Longest span100 ft (30.4 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,150 (2023)
Projected traffic7,575 by 2046
Trucks33%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 FAI 74WB over Henderson Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is FAI 74WB over Henderson Creek 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 November 2023.

How much traffic does FAI 74WB over Henderson Creek carry?

About 8,150 vehicles per day (2023 count), of which roughly 33% are trucks.

How long is FAI 74WB over Henderson Creek?

The structure is 104 ft (31.6 m) long with a longest span of 100 ft (30.4 m) and a deck 43 ft wide.

Who owns FAI 74WB over Henderson Creek?

It is owned by the State Highway Agency.