US Bridges

Ch 7(FAS 529) over Lake Fork Drain Dit

Fair

Piatt County, Illinois · 3.1 MI E of Bement · Structure no. 074300100000000

Built
1937
88 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
95 ft
3 main spans
Daily traffic
800
2020 count
Owner
County
County Highway Agency

About this bridge

Ch 7(FAS 529) over Lake Fork Drain Dit is a steel stringer/multi-beam or girder carrying Ch 7(FAS 529) over Lake Fork Drain Dit in Piatt County, Illinois. It was built in 1937, so it is 88 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 800 vehicles a day, roughly 5% of them trucks, projected to reach 808 by 2046. The structure is 95 ft (29.1 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCh 7(FAS 529)
CrossesLake Fork Drain Dit
Location3.1 MI E of Bement
RouteCounty Highway 0
Coordinates39.92274, -88.51504
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 rating57.9 US tons
Inventory rating34.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length95 ft (29.1 m)
Longest span35 ft (10.8 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 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 closed1.9 mi (3 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 Ch 7(FAS 529) over Lake Fork Drain Dit built?

It was built in 1937, making it 88 years old in 2025.

What condition is Ch 7(FAS 529) over Lake Fork Drain Dit in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does Ch 7(FAS 529) over Lake Fork Drain Dit carry?

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

How long is Ch 7(FAS 529) over Lake Fork Drain Dit?

The structure is 95 ft (29.1 m) long with a longest span of 35 ft (10.8 m) and a deck 31 ft wide.

Who owns Ch 7(FAS 529) over Lake Fork Drain Dit?

It is owned by the County Highway Agency.