US Bridges

FAS-797 over Elm River

Fair

Wayne County, Illinois · 0.2 MI N Enterprise · Structure no. 096301800000000

Built
1969
56 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
247 ft
3 main spans
Daily traffic
1,000
2022 count
Owner
County
County Highway Agency

About this bridge

FAS-797 over Elm River is a steel continuous stringer/multi-beam or girder carrying FAS-797 over Elm River in Wayne County, Illinois. It was built in 1969, so it is 56 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 1,000 vehicles a day, roughly 14% of them trucks, projected to reach 918 by 2046. The structure is 247 ft (75.3 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesFAS-797
CrossesElm River
Location0.2 MI N Enterprise
RouteCounty Highway 0
CountyWayne County
StateIllinois
Coordinates38.52709, -88.34416
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating58.5 US tons
Inventory rating32.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length247 ft (75.3 m)
Longest span95 ft (29 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2022)
Projected traffic918 by 2046
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 FAS-797 over Elm River built?

It was built in 1969, making it 56 years old in 2025.

What condition is FAS-797 over Elm River 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 January 2024.

How much traffic does FAS-797 over Elm River carry?

About 1,000 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is FAS-797 over Elm River?

The structure is 247 ft (75.3 m) long with a longest span of 95 ft (29 m) and a deck 30 ft wide.

Who owns FAS-797 over Elm River?

It is owned by the County Highway Agency.