US Bridges

Il 78 over Drainage Ditch

Good

Henry County, Illinois · S Edge of N JCT IL92 · Structure no. 037202400000000

Built
2002
23 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
1,400
2023 count
Owner
State
State Highway Agency

About this bridge

Il 78 over Drainage Ditch is a concrete culvert carrying Il 78 over Drainage Ditch in Henry County, Illinois. It was built in 2002, so it is 23 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,400 vehicles a day, roughly 24% of them trucks, projected to reach 1,458 by 2046. The structure is 22 ft (6.6 m) long and 48 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

CarriesIl 78
CrossesDrainage Ditch
LocationS Edge of N JCT IL92
RouteState Highway 78
Coordinates41.56695, -89.93788
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 48 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.6 m)
Longest span10 ft (3.2 m)
Deck width48 ft (14.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2023)
Projected traffic1,458 by 2046
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 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 Il 78 over Drainage Ditch built?

It was built in 2002, making it 23 years old in 2025.

What condition is Il 78 over Drainage Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does Il 78 over Drainage Ditch carry?

About 1,400 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is Il 78 over Drainage Ditch?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3.2 m) and a deck 48 ft wide.

Who owns Il 78 over Drainage Ditch?

It is owned by the State Highway Agency.