US Bridges

FAP 320(IL 48 & 12 over Ditch

Fair

Macon County, Illinois · .16 MI W Il 48 N · Structure no. 058602100000000

Built
1981
44 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
13,000
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAP 320(IL 48 & 12 over Ditch is a concrete continuous culvert carrying FAP 320(IL 48 & 12 over Ditch in Macon County, Illinois. It was built in 1981, so it is 44 years old, younger 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 13,000 vehicles a day, roughly 8% of them trucks, projected to reach 12,120 by 2046. The structure is 38 ft (11.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesFAP 320(IL 48 & 12
CrossesDitch
Location.16 MI W Il 48 N
RouteState Highway 48
CountyMacon County
StateIllinois
Coordinates39.87743, -88.92778
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating103.9 US tons
Inventory rating62.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length38 ft (11.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2023)
Projected traffic12,120 by 2046
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 320(IL 48 & 12 over Ditch built?

It was built in 1981, making it 44 years old in 2025.

What condition is FAP 320(IL 48 & 12 over 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 July 2023.

How much traffic does FAP 320(IL 48 & 12 over Ditch carry?

About 13,000 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is FAP 320(IL 48 & 12 over Ditch?

The structure is 38 ft (11.5 m) long with a longest span of 12 ft (3.7 m).

Who owns FAP 320(IL 48 & 12 over Ditch?

It is owned by the City or Municipal Highway Agency.