US Bridges

FAP 320(IL 121) over Waterway

Fair

Macon County, Illinois · .5 M S Pershing · Structure no. 058200500000000

Built
1982
43 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
37 ft
3 main spans
Daily traffic
15,100
2023 count
Owner
State
State Highway Agency

About this bridge

FAP 320(IL 121) over Waterway is a concrete culvert carrying FAP 320(IL 121) over Waterway in Macon County, Illinois. It was built in 1982, so it is 43 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 15,100 vehicles a day, roughly 10% of them trucks, projected to reach 14,544 by 2046. The structure is 37 ft (11.3 m) long.

Location

Open in Google Maps
CarriesFAP 320(IL 121)
CrossesWaterway
Location.5 M S Pershing
RouteState Highway 121
CountyMacon County
StateIllinois
Coordinates39.87286, -88.92638
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 inspectionOctober 2024
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 alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating29.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,100 (2023)
Projected traffic14,544 by 2046
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 320(IL 121) over Waterway built?

It was built in 1982, making it 43 years old in 2025.

What condition is FAP 320(IL 121) over Waterway 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 October 2024.

How much traffic does FAP 320(IL 121) over Waterway carry?

About 15,100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is FAP 320(IL 121) over Waterway?

The structure is 37 ft (11.3 m) long with a longest span of 11 ft (3.4 m).

Who owns FAP 320(IL 121) over Waterway?

It is owned by the State Highway Agency.