US Bridges

FAS-800 over Little Bonpas Creek

Fair

Wabash County, Illinois · 3 MI W Mesa Lake · Structure no. 093300000000000

Built
1949
76 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
129 ft
3 main spans
Daily traffic
950
2022 count
Owner
County
County Highway Agency

About this bridge

FAS-800 over Little Bonpas Creek is a steel continuous stringer/multi-beam or girder carrying FAS-800 over Little Bonpas Creek in Wabash County, Illinois. It was built in 1949, so it is 76 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 950 vehicles a day, roughly 8% of them trucks, projected to reach 909 by 2046. The structure is 129 ft (39.3 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesFAS-800
CrossesLittle Bonpas Creek
Location3 MI W Mesa Lake
RouteCounty Highway 0
Coordinates38.52607, -87.92682
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating28.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length129 ft (39.3 m)
Longest span49 ft (14.9 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic950 (2022)
Projected traffic909 by 2046
Trucks8%
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-800 over Little Bonpas Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is FAS-800 over Little Bonpas 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 February 2025.

How much traffic does FAS-800 over Little Bonpas Creek carry?

About 950 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is FAS-800 over Little Bonpas Creek?

The structure is 129 ft (39.3 m) long with a longest span of 49 ft (14.9 m) and a deck 28 ft wide.

Who owns FAS-800 over Little Bonpas Creek?

It is owned by the County Highway Agency.