US Bridges

Davis ST Ferry RD over FAI 255

Fair

St. Clair County, Illinois · 1.5 Mi. S of Dupo · Structure no. 082021500000000

Built
1979
46 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
221 ft
2 main spans
Daily traffic
600
2023 count
Owner
State
State Highway Agency

About this bridge

Davis ST Ferry RD over FAI 255 is a steel continuous stringer/multi-beam or girder carrying Davis ST Ferry RD over FAI 255 in St. Clair County, Illinois. It was built in 1979, so it is 46 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 600 vehicles a day, roughly 15% of them trucks, projected to reach 631 by 2046. The structure is 221 ft (67.5 m) long and 37 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

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CarriesDavis ST Ferry RD
CrossesFAI 255
Location1.5 Mi. S of Dupo
CountySt. Clair County
StateIllinois
Coordinates38.48998, -90.21797
Functional classRural Minor 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.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating36.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length221 ft (67.5 m)
Longest span113 ft (34.4 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2023)
Projected traffic631 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed36 mi (58 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Davis ST Ferry RD over FAI 255 built?

It was built in 1979, making it 46 years old in 2025.

What condition is Davis ST Ferry RD over FAI 255 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 January 2025.

How much traffic does Davis ST Ferry RD over FAI 255 carry?

About 600 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Davis ST Ferry RD over FAI 255?

The structure is 221 ft (67.5 m) long with a longest span of 113 ft (34.4 m) and a deck 37 ft wide.

Who owns Davis ST Ferry RD over FAI 255?

It is owned by the State Highway Agency.