US Bridges

FAP-781 (ILL-33) over Big Creek

Fair

Crawford County, Illinois · NE Cl Stoy · Structure no. 017002900000000

Built
1997
28 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
171 ft
2 main spans
Daily traffic
5,400
2023 count
Owner
State
State Highway Agency

About this bridge

FAP-781 (ILL-33) over Big Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying FAP-781 (ILL-33) over Big Creek in Crawford County, Illinois. It was built in 1997, so it is 28 years old, younger 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 5,400 vehicles a day, roughly 13% of them trucks, projected to reach 5,252 by 2046. The structure is 171 ft (52.2 m) long and 43 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

Location

Open in Google Maps
CarriesFAP-781 (ILL-33)
CrossesBig Creek
LocationNE Cl Stoy
RouteState Highway 33
CountyCrawford County
StateIllinois
Coordinates39.00344, -87.84185
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
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 rating87.2 US tons
Inventory rating47.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length171 ft (52.2 m)
Longest span84 ft (25.7 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,400 (2023)
Projected traffic5,252 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 FAP-781 (ILL-33) over Big Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is FAP-781 (ILL-33) over Big 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 FAP-781 (ILL-33) over Big Creek carry?

About 5,400 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is FAP-781 (ILL-33) over Big Creek?

The structure is 171 ft (52.2 m) long with a longest span of 84 ft (25.7 m) and a deck 43 ft wide.

Who owns FAP-781 (ILL-33) over Big Creek?

It is owned by the State Highway Agency.