US Bridges

FAS 766/POCAHONTAS over Little Silver Ck

Fair

Madison County, Illinois · 0.5 MI E Grantfork · Structure no. 060325300000000

Built
1983
42 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
209 ft
3 main spans
Daily traffic
475
2024 count
Owner
County
County Highway Agency

About this bridge

FAS 766/POCAHONTAS over Little Silver Ck is a prestressed concrete box beam or girders - multiple carrying FAS 766/POCAHONTAS over Little Silver Ck in Madison County, Illinois. It was built in 1983, so it is 42 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 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 475 vehicles a day, roughly 17% of them trucks, projected to reach 455 by 2046. The structure is 209 ft (63.7 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFAS 766/POCAHONTAS
CrossesLittle Silver Ck
Location0.5 MI E Grantfork
RouteCounty Highway 0
Coordinates38.82997, -89.66056
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length209 ft (63.7 m)
Longest span69 ft (21 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic475 (2024)
Projected traffic455 by 2046
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 766/POCAHONTAS over Little Silver Ck built?

It was built in 1983, making it 42 years old in 2025.

What condition is FAS 766/POCAHONTAS over Little Silver Ck 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 May 2024.

How much traffic does FAS 766/POCAHONTAS over Little Silver Ck carry?

About 475 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is FAS 766/POCAHONTAS over Little Silver Ck?

The structure is 209 ft (63.7 m) long with a longest span of 69 ft (21 m) and a deck 30 ft wide.

Who owns FAS 766/POCAHONTAS over Little Silver Ck?

It is owned by the County Highway Agency.