US Bridges

I74WB Rest Area Ra over Trib Spoon River

Fair

Knox County, Illinois · Spoon River Restarea · Structure no. 048200400000000

Built
1976
49 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
500
2022 count
Owner
State
State Highway Agency

About this bridge

I74WB Rest Area Ra over Trib Spoon River is a concrete continuous culvert carrying I74WB Rest Area Ra over Trib Spoon River in Knox County, Illinois. It was built in 1976, so it is 49 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 500 vehicles a day, roughly 40% of them trucks, projected to reach 556 by 2046. The structure is 27 ft (8.1 m) long.

CarriesI74WB Rest Area Ra
CrossesTrib Spoon River
LocationSpoon River Restarea
Coordinates40.88063, -90.09158
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 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
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 Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.1 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2022)
Projected traffic556 by 2046
Trucks40%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 I74WB Rest Area Ra over Trib Spoon River built?

It was built in 1976, making it 49 years old in 2025.

What condition is I74WB Rest Area Ra over Trib Spoon River 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 April 2024.

How much traffic does I74WB Rest Area Ra over Trib Spoon River carry?

About 500 vehicles per day (2022 count), of which roughly 40% are trucks.

How long is I74WB Rest Area Ra over Trib Spoon River?

The structure is 27 ft (8.1 m) long with a longest span of 11 ft (3.5 m).

Who owns I74WB Rest Area Ra over Trib Spoon River?

It is owned by the State Highway Agency.