US Bridges

FAS 512(CH 8) over Olive Branch

Good

Vermilion County, Illinois · 3.4 MI W Fairmount · Structure no. 092009100000000

Built
1962
63 years old, rebuilt 2017
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
122 ft
3 main spans
Daily traffic
1,750
2023 count
Owner
County
County Highway Agency

About this bridge

FAS 512(CH 8) over Olive Branch is a steel continuous stringer/multi-beam or girder carrying FAS 512(CH 8) over Olive Branch in Vermilion County, Illinois. It was built in 1962 and reconstructed in 2017, so it is 63 years old, older 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 1,750 vehicles a day, roughly 18% of them trucks, projected to reach 1,515 by 2046. The structure is 122 ft (37.2 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesFAS 512(CH 8)
CrossesOlive Branch
Location3.4 MI W Fairmount
RouteCounty Highway 0
CountyVermilion County
StateIllinois
Coordinates40.04715, -87.90769
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 protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.9 US tons
Inventory rating97.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length122 ft (37.2 m)
Longest span44 ft (13.3 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,750 (2023)
Projected traffic1,515 by 2046
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 512(CH 8) over Olive Branch built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2017.

What condition is FAS 512(CH 8) over Olive Branch 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 March 2023.

How much traffic does FAS 512(CH 8) over Olive Branch carry?

About 1,750 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is FAS 512(CH 8) over Olive Branch?

The structure is 122 ft (37.2 m) long with a longest span of 44 ft (13.3 m) and a deck 32 ft wide.

Who owns FAS 512(CH 8) over Olive Branch?

It is owned by the County Highway Agency.