US Bridges

FAP-322 (US-51) over Cassar Creek

Fair

Fayette County, Illinois · 1 MI S Shobonier · Structure no. 026200400000000

Built
1960
65 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
36 ft
3 main spans
Daily traffic
2,950
2023 count
Owner
State
State Highway Agency

About this bridge

FAP-322 (US-51) over Cassar Creek is a concrete culvert carrying FAP-322 (US-51) over Cassar Creek in Fayette County, Illinois. It was built in 1960, so it is 65 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 2,950 vehicles a day, roughly 19% of them trucks, projected to reach 3,009 by 2046. The structure is 36 ft (11 m) long. If it were closed, the detour would be 54.1 mi (87 km).

Location

Open in Google Maps
CarriesFAP-322 (US-51)
CrossesCassar Creek
Location1 MI S Shobonier
RouteU.S. Route 51
CountyFayette County
StateIllinois
Coordinates38.85429, -89.08795
Functional classRural Principal Arterial - Other

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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length36 ft (11 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,950 (2023)
Projected traffic3,009 by 2046
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed54.1 mi (87 km)
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 Cassar Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is FAP-322 (US-51) over Cassar 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 November 2023.

How much traffic does FAP-322 (US-51) over Cassar Creek carry?

About 2,950 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is FAP-322 (US-51) over Cassar Creek?

The structure is 36 ft (11 m) long with a longest span of 13 ft (3.9 m).

Who owns FAP-322 (US-51) over Cassar Creek?

It is owned by the State Highway Agency.