US Bridges

FAP-849 (ILL-142) over Casey Fork

Fair

Jefferson County, Illinois · .9 MI S Mt Vernon · Structure no. 041004200000000

Built
1930
95 years old, rebuilt 1990
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
166 ft
3 main spans
Daily traffic
4,900
2023 count
Owner
State
State Highway Agency

About this bridge

FAP-849 (ILL-142) over Casey Fork is a steel continuous stringer/multi-beam or girder carrying FAP-849 (ILL-142) over Casey Fork in Jefferson County, Illinois. It was built in 1930 and reconstructed in 1990, so it is 95 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 4,900 vehicles a day, roughly 6% of them trucks, projected to reach 5,202 by 2046. The structure is 166 ft (50.7 m) long and 39 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

Location

Open in Google Maps
CarriesFAP-849 (ILL-142)
CrossesCasey Fork
Location.9 MI S Mt Vernon
RouteState Highway 142
CountyJefferson County
StateIllinois
Coordinates38.28676, -88.87219
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: 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 rating68.9 US tons
Inventory rating41.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length166 ft (50.7 m)
Longest span62 ft (18.8 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,900 (2023)
Projected traffic5,202 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 km)
TollOn a free road
National Highway SystemNo

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-849 (ILL-142) over Casey Fork built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1990.

What condition is FAP-849 (ILL-142) over Casey Fork 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 August 2023.

How much traffic does FAP-849 (ILL-142) over Casey Fork carry?

About 4,900 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is FAP-849 (ILL-142) over Casey Fork?

The structure is 166 ft (50.7 m) long with a longest span of 62 ft (18.8 m) and a deck 39 ft wide.

Who owns FAP-849 (ILL-142) over Casey Fork?

It is owned by the State Highway Agency.