US Bridges

FAS 529 (ch 7) over Lake Fork Ditch

Good

Piatt County, Illinois · 1 MI E of Bement · Structure no. 074328000000000

Built
1999
26 years old
Condition
Good
inspected November 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
800
2020 count
Owner
County
County Highway Agency

About this bridge

FAS 529 (ch 7) over Lake Fork Ditch is a prestressed concrete box beam or girders - multiple carrying FAS 529 (ch 7) over Lake Fork Ditch in Piatt County, Illinois. It was built in 1999, so it is 26 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 800 vehicles a day, roughly 5% of them trucks, projected to reach 808 by 2046. The structure is 56 ft (17.2 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFAS 529 (ch 7)
CrossesLake Fork Ditch
Location1 MI E of Bement
RouteCounty Highway 0
Coordinates39.92274, -88.5439
Functional classRural Major 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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length56 ft (17.2 m)
Longest span54 ft (16.6 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2020)
Projected traffic808 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 FAS 529 (ch 7) over Lake Fork Ditch built?

It was built in 1999, making it 26 years old in 2025.

What condition is FAS 529 (ch 7) over Lake Fork Ditch 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 2021.

How much traffic does FAS 529 (ch 7) over Lake Fork Ditch carry?

About 800 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is FAS 529 (ch 7) over Lake Fork Ditch?

The structure is 56 ft (17.2 m) long with a longest span of 54 ft (16.6 m) and a deck 30 ft wide.

Who owns FAS 529 (ch 7) over Lake Fork Ditch?

It is owned by the County Highway Agency.