US Bridges

FAP 322 (us 51) over Spring Creek

Fair

Macon County, Illinois · S Between IL48&BSN51 · Structure no. 058200400000000

Built
1976
49 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
38 ft
2 main spans
Daily traffic
4,400
2023 count
Owner
State
State Highway Agency

About this bridge

FAP 322 (us 51) over Spring Creek is a concrete culvert carrying FAP 322 (us 51) over Spring Creek in Macon County, Illinois. It was built in 1976, so it is 49 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 5 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 4,400 vehicles a day, roughly 20% of them trucks, projected to reach 4,343 by 2046. The structure is 38 ft (11.7 m) long.

Location

Open in Google Maps
CarriesFAP 322 (us 51)
CrossesSpring Creek
LocationS Between IL48&BSN51
RouteU.S. Route 51
CountyMacon County
StateIllinois
Coordinates39.79022, -88.99236
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating89.3 US tons
Inventory rating53.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length38 ft (11.7 m)
Longest span18 ft (5.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,400 (2023)
Projected traffic4,343 by 2046
Trucks20%
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 322 (us 51) over Spring Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is FAP 322 (us 51) over Spring Creek 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 2024.

How much traffic does FAP 322 (us 51) over Spring Creek carry?

About 4,400 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is FAP 322 (us 51) over Spring Creek?

The structure is 38 ft (11.7 m) long with a longest span of 18 ft (5.4 m).

Who owns FAP 322 (us 51) over Spring Creek?

It is owned by the State Highway Agency.