US Bridges

FAS 904 over Little Crab Orchard

Fair

Williamson County, Illinois · 2.06 MI So Pittsburg · Structure no. 100308500000000

Built
1972
53 years old
Condition
Fair
inspected March 2023
Type
Channel Beam
Concrete
Length
98 ft
3 main spans
Daily traffic
2,950
2023 count
Owner
County
County Highway Agency

About this bridge

FAS 904 over Little Crab Orchard is a concrete channel beam carrying FAS 904 over Little Crab Orchard in Williamson County, Illinois. It was built in 1972, so it is 53 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 2,950 vehicles a day, roughly 11% of them trucks, projected to reach 2,980 by 2046. The structure is 98 ft (29.9 m) long and 37 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFAS 904
CrossesLittle Crab Orchard
Location2.06 MI So Pittsburg
RouteCounty Highway 0
CountyWilliamson County
StateIllinois
Coordinates37.73719, -88.85525
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 rating73.5 US tons
Inventory rating44 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length98 ft (29.9 m)
Longest span33 ft (10.1 m)
Deck width37 ft (11.4 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,950 (2023)
Projected traffic2,980 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 904 over Little Crab Orchard built?

It was built in 1972, making it 53 years old in 2025.

What condition is FAS 904 over Little Crab Orchard 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 March 2023.

How much traffic does FAS 904 over Little Crab Orchard carry?

About 2,950 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is FAS 904 over Little Crab Orchard?

The structure is 98 ft (29.9 m) long with a longest span of 33 ft (10.1 m) and a deck 37 ft wide.

Who owns FAS 904 over Little Crab Orchard?

It is owned by the County Highway Agency.