US Bridges

US 150 over Henderson Creek

Fair

Knox County, Illinois · 6.3 MI N of US 34 · Structure no. 048008800000000

Built
2012
13 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
112 ft
1 main span
Daily traffic
2,950
2023 count
Owner
State
State Highway Agency

About this bridge

US 150 over Henderson Creek is a prestressed concrete stringer/multi-beam or girder carrying US 150 over Henderson Creek in Knox County, Illinois. It was built in 2012, so it is 13 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 2,950 vehicles a day, roughly 9% of them trucks, projected to reach 2,525 by 2046. The structure is 112 ft (34.1 m) long and 39 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS 150
CrossesHenderson Creek
Location6.3 MI N of US 34
RouteU.S. Route 150
CountyKnox County
StateIllinois
Coordinates41.06836, -90.38197
Functional classRural Major 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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating52.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length112 ft (34.1 m)
Longest span106 ft (32.3 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,950 (2023)
Projected traffic2,525 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 US 150 over Henderson Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is US 150 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 October 2024.

How much traffic does US 150 over Henderson Creek carry?

About 2,950 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is US 150 over Henderson Creek?

The structure is 112 ft (34.1 m) long with a longest span of 106 ft (32.3 m) and a deck 39 ft wide.

Who owns US 150 over Henderson Creek?

It is owned by the State Highway Agency.