US Bridges

I-57 SB over Shake Rag Road

Good

Union County, Illinois · E of Dongola · Structure no. 091007600000000

Built
2019
6 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
127 ft
3 main spans
Daily traffic
6,300
2024 count
Owner
State
State Highway Agency

About this bridge

I-57 SB over Shake Rag Road is a steel continuous stringer/multi-beam or girder carrying I-57 SB over Shake Rag Road in Union County, Illinois. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,300 vehicles a day, roughly 53% of them trucks, projected to reach 7,828 by 2046. The structure is 127 ft (38.7 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-57 SB
CrossesShake Rag Road
LocationE of Dongola
RouteInterstate 57
CountyUnion County
StateIllinois
Coordinates37.36261, -89.15544
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating58.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length127 ft (38.7 m)
Longest span50 ft (15.2 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,300 (2024)
Projected traffic7,828 by 2046
Trucks53%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-57 SB over Shake Rag Road built?

It was built in 2019, making it 6 years old in 2025.

What condition is I-57 SB over Shake Rag Road 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 December 2023.

How much traffic does I-57 SB over Shake Rag Road carry?

About 6,300 vehicles per day (2024 count), of which roughly 53% are trucks.

How long is I-57 SB over Shake Rag Road?

The structure is 127 ft (38.7 m) long with a longest span of 50 ft (15.2 m) and a deck 45 ft wide.

Who owns I-57 SB over Shake Rag Road?

It is owned by the State Highway Agency.