US Bridges

FAP 326 (il 47) over Sangamon River

Good

Champaign County, Illinois · S of Mahomet · Structure no. 010028700000000

Built
2009
16 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
380 ft
4 main spans
Daily traffic
5,000
2023 count
Owner
State
State Highway Agency

About this bridge

FAP 326 (il 47) over Sangamon River is a prestressed concrete continuous stringer/multi-beam or girder carrying FAP 326 (il 47) over Sangamon River in Champaign County, Illinois. It was built in 2009, so it is 16 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 5,000 vehicles a day, roughly 9% of them trucks, projected to reach 5,000 by 2046. The structure is 380 ft (115.8 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesFAP 326 (il 47)
CrossesSangamon River
LocationS of Mahomet
RouteState Highway 47
CountyChampaign County
StateIllinois
Coordinates40.18189, -88.40779
Functional classUrban Other Principal Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 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 rating58.5 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length380 ft (115.8 m)
Longest span110 ft (33.5 m)
Deck width44 ft (13.3 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2023)
Projected traffic5,000 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 FAP 326 (il 47) over Sangamon River built?

It was built in 2009, making it 16 years old in 2025.

What condition is FAP 326 (il 47) over Sangamon River 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 July 2023.

How much traffic does FAP 326 (il 47) over Sangamon River carry?

About 5,000 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is FAP 326 (il 47) over Sangamon River?

The structure is 380 ft (115.8 m) long with a longest span of 110 ft (33.5 m) and a deck 44 ft wide.

Who owns FAP 326 (il 47) over Sangamon River?

It is owned by the State Highway Agency.