US Bridges

FAS 1656(CH 23) over I-57

Fair

Shelby County, Illinois · 1 MI N Eff CO Line · Structure no. 087001000000000

Built
1964
61 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
224 ft
4 main spans
Daily traffic
800
2024 count
Owner
State
State Highway Agency

About this bridge

FAS 1656(CH 23) over I-57 is a prestressed concrete continuous stringer/multi-beam or girder carrying FAS 1656(CH 23) over I-57 in Shelby County, Illinois. It was built in 1964, so it is 61 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 800 vehicles a day, roughly 6% of them trucks, projected to reach 657 by 2046. The structure is 224 ft (68.2 m) long and 32 ft wide.

CarriesFAS 1656(CH 23)
CrossesI-57
Location1 MI N Eff CO Line
RouteCounty Highway 0
Coordinates39.22955, -88.48328
Functional classRural Major Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating49.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length224 ft (68.2 m)
Longest span68 ft (20.7 m)
Deck width32 ft (9.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2024)
Projected traffic657 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAS 1656(CH 23) over I-57 built?

It was built in 1964, making it 61 years old in 2025.

What condition is FAS 1656(CH 23) over I-57 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 May 2023.

How much traffic does FAS 1656(CH 23) over I-57 carry?

About 800 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is FAS 1656(CH 23) over I-57?

The structure is 224 ft (68.2 m) long with a longest span of 68 ft (20.7 m) and a deck 32 ft wide.

Who owns FAS 1656(CH 23) over I-57?

It is owned by the State Highway Agency.