US Bridges

TR-322 over Casey Fork

Good

Jefferson County, Illinois · 0.5 MI NE Mt Vernon · Structure no. 041367900000000

Built
1995
30 years old
Condition
Good
inspected February 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
161 ft
3 main spans
Daily traffic
1,150
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-322 over Casey Fork is a prestressed concrete stringer/multi-beam or girder carrying TR-322 over Casey Fork in Jefferson County, Illinois. It was built in 1995, so it is 30 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,150 vehicles a day, roughly 17% of them trucks, projected to reach 1,162 by 2046. The structure is 161 ft (49.2 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTR-322
CrossesCasey Fork
Location0.5 MI NE Mt Vernon
RouteCounty Highway 0
Coordinates38.33171, -88.8983
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length161 ft (49.2 m)
Longest span60 ft (18.3 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,150 (2021)
Projected traffic1,162 by 2046
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 TR-322 over Casey Fork built?

It was built in 1995, making it 30 years old in 2025.

What condition is TR-322 over Casey Fork in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2022.

How much traffic does TR-322 over Casey Fork carry?

About 1,150 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is TR-322 over Casey Fork?

The structure is 161 ft (49.2 m) long with a longest span of 60 ft (18.3 m) and a deck 28 ft wide.

Who owns TR-322 over Casey Fork?

It is owned by the Town or Township Highway Agency.