US Bridges

FAS-806 over Muddy Creek

Fair

Lawrence County, Illinois · 1 MI NW Petrolia · Structure no. 051312200000000

Built
1971
54 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
194 ft
4 main spans
Daily traffic
225
2023 count
Owner
County
County Highway Agency

About this bridge

FAS-806 over Muddy Creek is a prestressed concrete box beam or girders - multiple carrying FAS-806 over Muddy Creek in Lawrence County, Illinois. It was built in 1971, so it is 54 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 225 vehicles a day, roughly 15% of them trucks, projected to reach 202 by 2046. The structure is 194 ft (59.1 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFAS-806
CrossesMuddy Creek
Location1 MI NW Petrolia
RouteCounty Highway 0
CountyLawrence County
StateIllinois
Coordinates38.77152, -87.79667
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 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 rating46.1 US tons
Inventory rating27.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 15
Structure length194 ft (59.1 m)
Longest span48 ft (14.6 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2023)
Projected traffic202 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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-806 over Muddy Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is FAS-806 over 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-806 over Muddy Creek carry?

About 225 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is FAS-806 over Muddy Creek?

The structure is 194 ft (59.1 m) long with a longest span of 48 ft (14.6 m) and a deck 30 ft wide.

Who owns FAS-806 over Muddy Creek?

It is owned by the County Highway Agency.