US Bridges

FAU 9459 over Trib Middle Fork

Good

Franklin County, Illinois · 975N 1350E · Structure no. 028330800000000

Built
1991
34 years old
Condition
Good
inspected June 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
600
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

FAU 9459 over Trib Middle Fork is a prestressed concrete box beam or girders - multiple carrying FAU 9459 over Trib Middle Fork in Franklin County, Illinois. It was built in 1991, so it is 34 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 600 vehicles a day, roughly 8% of them trucks, projected to reach 455 by 2046. The structure is 31 ft (9.6 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFAU 9459
CrossesTrib Middle Fork
Location975N 1350E
Coordinates38.00624, -88.90026
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length31 ft (9.6 m)
Longest span29 ft (8.8 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2024)
Projected traffic455 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 FAU 9459 over Trib Middle Fork built?

It was built in 1991, making it 34 years old in 2025.

What condition is FAU 9459 over Trib Middle Fork 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 June 2022.

How much traffic does FAU 9459 over Trib Middle Fork carry?

About 600 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is FAU 9459 over Trib Middle Fork?

The structure is 31 ft (9.6 m) long with a longest span of 29 ft (8.8 m) and a deck 28 ft wide.

Who owns FAU 9459 over Trib Middle Fork?

It is owned by the Town or Township Highway Agency.