US Bridges

Il 100 over Ditch

Fair

Schuyler County, Illinois · 16.15 MI E US 67 · Structure no. 085701500000000

Built
1934
91 years old
Condition
Fair
inspected February 2025
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
525
2023 count
Owner
State
State Highway Agency

About this bridge

Il 100 over Ditch is a concrete culvert carrying Il 100 over Ditch in Schuyler County, Illinois. It was built in 1934, so it is 91 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 525 vehicles a day, roughly 21% of them trucks, projected to reach 682 by 2046. The structure is 26 ft (8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIl 100
CrossesDitch
Location16.15 MI E US 67
RouteState Highway 100
CountySchuyler County
StateIllinois
Coordinates40.17539, -90.27759
Functional classRural Minor Arterial

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
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 adequacy7: Better than present minimum 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 spans2
Design loadUnknown
Structure length26 ft (8 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic525 (2023)
Projected traffic682 by 2046
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 100 over Ditch built?

It was built in 1934, making it 91 years old in 2025.

What condition is Il 100 over 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 February 2025.

How much traffic does Il 100 over Ditch carry?

About 525 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is Il 100 over Ditch?

The structure is 26 ft (8 m) long with a longest span of 11 ft (3.4 m).

Who owns Il 100 over Ditch?

It is owned by the State Highway Agency.