US Bridges

I-57 over Big Ditch

Fair

Champaign County, Illinois · 1.75 MI N of US 136 · Structure no. 010019000000000

Built
1970
55 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
36 ft
3 main spans
Daily traffic
21,100
2023 count
Owner
State
State Highway Agency

About this bridge

I-57 over Big Ditch is a concrete continuous culvert carrying I-57 over Big Ditch in Champaign County, Illinois. It was built in 1970, so it is 55 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 21,100 vehicles a day, roughly 31% of them trucks, projected to reach 21,311 by 2046. The structure is 36 ft (11.1 m) long.

Location

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CarriesI-57
CrossesBig Ditch
Location1.75 MI N of US 136
RouteInterstate 57
CountyChampaign County
StateIllinois
Coordinates40.33377, -88.17095
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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating105.7 US tons
Inventory rating63.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length36 ft (11.1 m)
Longest span13 ft (4.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,100 (2023)
Projected traffic21,311 by 2046
Trucks31%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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-57 over Big Ditch built?

It was built in 1970, making it 55 years old in 2025.

What condition is I-57 over Big 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 September 2023.

How much traffic does I-57 over Big Ditch carry?

About 21,100 vehicles per day (2023 count), of which roughly 31% are trucks.

How long is I-57 over Big Ditch?

The structure is 36 ft (11.1 m) long with a longest span of 13 ft (4.1 m).

Who owns I-57 over Big Ditch?

It is owned by the State Highway Agency.