US Bridges

FAS-798 (CH-8) over Little Muddy Creek

Fair

Clay County, Illinois · 1.6 MI E Bible Grove · Structure no. 013300700000000

Built
1964
61 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
375
2021 count
Owner
County
County Highway Agency

About this bridge

FAS-798 (CH-8) over Little Muddy Creek is a steel stringer/multi-beam or girder carrying FAS-798 (CH-8) over Little Muddy Creek in Clay County, Illinois. It was built in 1964, so it is 61 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 375 vehicles a day, roughly 16% of them trucks, projected to reach 379 by 2046. The structure is 55 ft (16.8 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFAS-798 (CH-8)
CrossesLittle Muddy Creek
Location1.6 MI E Bible Grove
RouteCounty Highway 0
Coordinates38.87209, -88.41533
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.2 US tons
Inventory rating29.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length55 ft (16.8 m)
Longest span51 ft (15.5 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic375 (2021)
Projected traffic379 by 2046
Trucks16%
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

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-798 (CH-8) over Little Muddy Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is FAS-798 (CH-8) over Little Muddy 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 January 2024.

How much traffic does FAS-798 (CH-8) over Little Muddy Creek carry?

About 375 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is FAS-798 (CH-8) over Little Muddy Creek?

The structure is 55 ft (16.8 m) long with a longest span of 51 ft (15.5 m) and a deck 26 ft wide.

Who owns FAS-798 (CH-8) over Little Muddy Creek?

It is owned by the County Highway Agency.