US Bridges

FAS 723A over Piatt Creek

Fair

Montgomery County, Illinois · 5 MI S Fillmore · Structure no. 068500000000000

Built
1946
79 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete Continuous
Length
46 ft
3 main spans
Daily traffic
650
2020 count
Owner
County
County Highway Agency

About this bridge

FAS 723A over Piatt Creek is a concrete continuous culvert carrying FAS 723A over Piatt Creek in Montgomery County, Illinois. It was built in 1946, so it is 79 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 650 vehicles a day, roughly 15% of them trucks, projected to reach 657 by 2046. The structure is 46 ft (14 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 723A
CrossesPiatt Creek
Location5 MI S Fillmore
RouteCounty Highway 0
CountyMontgomery County
StateIllinois
Coordinates39.04364, -89.2739
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.3 US tons
Inventory rating26.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length46 ft (14 m)
Longest span14 ft (4.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2020)
Projected traffic657 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 723A over Piatt Creek built?

It was built in 1946, making it 79 years old in 2025.

What condition is FAS 723A over Piatt 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 2025.

How much traffic does FAS 723A over Piatt Creek carry?

About 650 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is FAS 723A over Piatt Creek?

The structure is 46 ft (14 m) long with a longest span of 14 ft (4.4 m) and a deck 30 ft wide.

Who owns FAS 723A over Piatt Creek?

It is owned by the County Highway Agency.