US Bridges

I-57 (sb) over Scattering Fork

Fair

Douglas County, Illinois · 1.5 MI S of US 36 · Structure no. 021000800000000

Built
1968
57 years old, rebuilt 1997
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
113 ft
3 main spans
Daily traffic
10,150
2023 count
Owner
State
State Highway Agency

About this bridge

I-57 (sb) over Scattering Fork is a concrete continuous slab carrying I-57 (sb) over Scattering Fork in Douglas County, Illinois. It was built in 1968 and reconstructed in 1997, so it is 57 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 10,150 vehicles a day, roughly 41% of them trucks, projected to reach 10,908 by 2046. The structure is 113 ft (34.5 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-57 (sb)
CrossesScattering Fork
Location1.5 MI S of US 36
RouteInterstate 57
CountyDouglas County
StateIllinois
Coordinates39.77395, -88.26488
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length113 ft (34.5 m)
Longest span41 ft (12.6 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,150 (2023)
Projected traffic10,908 by 2046
Trucks41%
Lanes on structure2
Traffic directionOne-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-57 (sb) over Scattering Fork built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1997.

What condition is I-57 (sb) over Scattering Fork 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 October 2024.

How much traffic does I-57 (sb) over Scattering Fork carry?

About 10,150 vehicles per day (2023 count), of which roughly 41% are trucks.

How long is I-57 (sb) over Scattering Fork?

The structure is 113 ft (34.5 m) long with a longest span of 41 ft (12.6 m) and a deck 43 ft wide.

Who owns I-57 (sb) over Scattering Fork?

It is owned by the State Highway Agency.