US Bridges

I74 & I280 over Turner Creek

Fair

Henry County, Illinois · 2 MI W Int I74 & I80 · Structure no. 037200000000000

Built
1962
63 years old
Condition
Fair
inspected January 2023
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
15,000
2023 count
Owner
State
State Highway Agency

About this bridge

I74 & I280 over Turner Creek is a concrete culvert carrying I74 & I280 over Turner Creek in Henry County, Illinois. It was built in 1962, so it is 63 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 15,000 vehicles a day, roughly 33% of them trucks, projected to reach 17,604 by 2046. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI74 & I280
CrossesTurner Creek
Location2 MI W Int I74 & I80
RouteInterstate 74
Coordinates41.44389, -90.36386
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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating98.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2023)
Projected traffic17,604 by 2046
Trucks33%
Lanes on structure4
Traffic directionTwo-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 I74 & I280 over Turner Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is I74 & I280 over Turner 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 January 2023.

How much traffic does I74 & I280 over Turner Creek carry?

About 15,000 vehicles per day (2023 count), of which roughly 33% are trucks.

How long is I74 & I280 over Turner Creek?

The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m).

Who owns I74 & I280 over Turner Creek?

It is owned by the State Highway Agency.