US Bridges

FAS-807 over Branch Little Bonpas

Fair

Lawrence County, Illinois · 7 MI S Sumner · Structure no. 051301500000000

Built
1934
91 years old, rebuilt 1962
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
850
2021 count
Owner
County
County Highway Agency

About this bridge

FAS-807 over Branch Little Bonpas is a concrete slab carrying FAS-807 over Branch Little Bonpas in Lawrence County, Illinois. It was built in 1934 and reconstructed in 1962, so it is 91 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 850 vehicles a day, roughly 11% of them trucks, projected to reach 859 by 2046. The structure is 28 ft (8.5 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFAS-807
CrossesBranch Little Bonpas
Location7 MI S Sumner
RouteCounty Highway 0
CountyLawrence County
StateIllinois
Coordinates38.60666, -87.86413
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating72.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length28 ft (8.5 m)
Longest span27 ft (8.2 m)
Deck width31 ft (9.3 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2021)
Projected traffic859 by 2046
Trucks11%
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-807 over Branch Little Bonpas built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1962.

What condition is FAS-807 over Branch Little Bonpas 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 FAS-807 over Branch Little Bonpas carry?

About 850 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is FAS-807 over Branch Little Bonpas?

The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.2 m) and a deck 31 ft wide.

Who owns FAS-807 over Branch Little Bonpas?

It is owned by the County Highway Agency.