US Bridges

FAS 335 Ch 10 over Drainage Ditch

Fair

Iroquois County, Illinois · 2.5 S 1.6 W Cisna P · Structure no. 038511200000000

Built
1979
46 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
78 ft
3 main spans
Daily traffic
350
2022 count
Owner
County
County Highway Agency

About this bridge

FAS 335 Ch 10 over Drainage Ditch is a prestressed concrete box beam or girders - multiple carrying FAS 335 Ch 10 over Drainage Ditch in Iroquois County, Illinois. It was built in 1979, so it is 46 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 350 vehicles a day, roughly 9% of them trucks, projected to reach 303 by 2046. The structure is 78 ft (23.8 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFAS 335 Ch 10
CrossesDrainage Ditch
Location2.5 S 1.6 W Cisna P
RouteCounty Highway 0
Coordinates40.52915, -87.92129
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating54.2 US tons
Inventory rating32.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length78 ft (23.8 m)
Longest span24 ft (7.2 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2022)
Projected traffic303 by 2046
Trucks9%
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 FAS 335 Ch 10 over Drainage Ditch built?

It was built in 1979, making it 46 years old in 2025.

What condition is FAS 335 Ch 10 over Drainage Ditch 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 September 2024.

How much traffic does FAS 335 Ch 10 over Drainage Ditch carry?

About 350 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is FAS 335 Ch 10 over Drainage Ditch?

The structure is 78 ft (23.8 m) long with a longest span of 24 ft (7.2 m) and a deck 31 ft wide.

Who owns FAS 335 Ch 10 over Drainage Ditch?

It is owned by the County Highway Agency.