US Bridges

Vonnahmen RD over Il 255 - FAP 310

Good

Madison County, Illinois · 1 Mile W Fosterburg · Structure no. 060030000000000

Built
2006
19 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
175 ft
2 main spans
Daily traffic
200
2021 count
Owner
State
State Highway Agency

About this bridge

Vonnahmen RD over Il 255 - FAP 310 is a steel continuous stringer/multi-beam or girder carrying Vonnahmen RD over Il 255 - FAP 310 in Madison County, Illinois. It was built in 2006, so it is 19 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 200 vehicles a day, roughly 20% of them trucks, projected to reach 214 by 2046. The structure is 175 ft (53.4 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesVonnahmen RD
CrossesIl 255 - FAP 310
Location1 Mile W Fosterburg
RouteCounty Highway 0
Coordinates38.93706, -90.11712
Functional classUrban Local

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 inspectionNovember 2024
Inspection intervalevery 48 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 alignment6: Equal to present minimum criteria
Operating rating92.2 US tons
Inventory rating55.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length175 ft (53.4 m)
Longest span88 ft (26.7 m)
Deck width37 ft (11.2 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2021)
Projected traffic214 by 2046
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 Vonnahmen RD over Il 255 - FAP 310 built?

It was built in 2006, making it 19 years old in 2025.

What condition is Vonnahmen RD over Il 255 - FAP 310 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 Vonnahmen RD over Il 255 - FAP 310 carry?

About 200 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is Vonnahmen RD over Il 255 - FAP 310?

The structure is 175 ft (53.4 m) long with a longest span of 88 ft (26.7 m) and a deck 37 ft wide.

Who owns Vonnahmen RD over Il 255 - FAP 310?

It is owned by the State Highway Agency.