US Bridges

I-74 & 280 over Drainage Ditch

Fair

Henry County, Illinois · 2 MI E Ri CO Line · Structure no. 037200600000000

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

About this bridge

I-74 & 280 over Drainage Ditch is a concrete culvert carrying I-74 & 280 over Drainage Ditch 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 24 ft (7.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-74 & 280
CrossesDrainage Ditch
Location2 MI E Ri CO Line
RouteInterstate 74
CountyHenry County
StateIllinois
Coordinates41.46268, -90.39377
Functional classUrban 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.
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 evaluation5: 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 rating42.9 US tons
Inventory rating25.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length24 ft (7.4 m)
Longest span12 ft (3.6 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 I-74 & 280 over Drainage Ditch built?

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

What condition is I-74 & 280 over Drainage Ditch 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 I-74 & 280 over Drainage Ditch carry?

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

How long is I-74 & 280 over Drainage Ditch?

The structure is 24 ft (7.4 m) long with a longest span of 12 ft (3.6 m).

Who owns I-74 & 280 over Drainage Ditch?

It is owned by the State Highway Agency.