US Bridges

FAS 731 over Birch Creek

Good

Greene County, Illinois · 2550N;1650E · Structure no. 031523300000000

Built
2006
19 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
101 ft
3 main spans
Daily traffic
550
2022 count
Owner
County
County Highway Agency

About this bridge

FAS 731 over Birch Creek is a prestressed concrete box beam or girders - multiple carrying FAS 731 over Birch Creek in Greene County, Illinois. It was built in 2006, so it is 19 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 550 vehicles a day, roughly 13% of them trucks, projected to reach 657 by 2046. The structure is 101 ft (30.9 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesFAS 731
CrossesBirch Creek
Location2550N;1650E
RouteCounty Highway 0
CountyGreene County
StateIllinois
Coordinates39.48385, -90.30807
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 48 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 rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length101 ft (30.9 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2022)
Projected traffic657 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 731 over Birch Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is FAS 731 over Birch Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does FAS 731 over Birch Creek carry?

About 550 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is FAS 731 over Birch Creek?

The structure is 101 ft (30.9 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns FAS 731 over Birch Creek?

It is owned by the County Highway Agency.