US Bridges

US 54 over The Sny

Fair

Pike County, Illinois · 1M SW Il 96 · Structure no. 075008000000000

Built
1975
50 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
152 ft
2 main spans
Daily traffic
2,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 54 over The Sny is a steel continuous stringer/multi-beam or girder carrying US 54 over The Sny in Pike County, Illinois. It was built in 1975, so it is 50 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 2,500 vehicles a day, roughly 18% of them trucks, projected to reach 2,668 by 2046. The structure is 152 ft (46.3 m) long and 46 ft wide. If it were closed, the detour would be 60.9 mi (98 km).

Location

Open in Google Maps
CarriesUS 54
CrossesThe Sny
Location1M SW Il 96
RouteU.S. Route 54
CountyPike County
StateIllinois
Coordinates39.50653, -90.98362
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.8 US tons
Inventory rating55.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length152 ft (46.3 m)
Longest span73 ft (22.4 m)
Deck width46 ft (14 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2023)
Projected traffic2,668 by 2046
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.9 mi (98 km)
TollOn a free road
National Highway SystemYes

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 US 54 over The Sny built?

It was built in 1975, making it 50 years old in 2025.

What condition is US 54 over The Sny 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 2023.

How much traffic does US 54 over The Sny carry?

About 2,500 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is US 54 over The Sny?

The structure is 152 ft (46.3 m) long with a longest span of 73 ft (22.4 m) and a deck 46 ft wide.

Who owns US 54 over The Sny?

It is owned by the State Highway Agency.