US Bridges

Il 255 SB (FAP310S over FAP 789 Il 143

Good

Madison County, Illinois · In Roxanna · Structure no. 060028700000000

Built
1995
30 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
235 ft
2 main spans
Daily traffic
25,400
2024 count
Owner
State
State Highway Agency

About this bridge

Il 255 SB (FAP310S over FAP 789 Il 143 is a steel continuous stringer/multi-beam or girder carrying Il 255 SB (FAP310S over FAP 789 Il 143 in Madison County, Illinois. It was built in 1995, so it is 30 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25,400 vehicles a day, roughly 9% of them trucks, projected to reach 12,305 by 2046. The structure is 235 ft (71.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIl 255 SB (FAP310S
CrossesFAP 789 Il 143
LocationIn Roxanna
RouteState Highway 255
CountyMadison County
StateIllinois
Coordinates38.85131, -90.05193
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.6 US tons
Inventory rating53.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length235 ft (71.7 m)
Longest span115 ft (35.1 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,400 (2024)
Projected traffic12,305 by 2046
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 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 Il 255 SB (FAP310S over FAP 789 Il 143 built?

It was built in 1995, making it 30 years old in 2025.

What condition is Il 255 SB (FAP310S over FAP 789 Il 143 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 November 2024.

How much traffic does Il 255 SB (FAP310S over FAP 789 Il 143 carry?

About 25,400 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Il 255 SB (FAP310S over FAP 789 Il 143?

The structure is 235 ft (71.7 m) long with a longest span of 115 ft (35.1 m) and a deck 43 ft wide.

Who owns Il 255 SB (FAP310S over FAP 789 Il 143?

It is owned by the State Highway Agency.