US Bridges

FAS 604 over Bay Creek Trib

Fair

Pike County, Illinois · .5 M N Ch 10 · Structure no. 075332100000000

Built
1971
54 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
700
2023 count
Owner
County
County Highway Agency

About this bridge

FAS 604 over Bay Creek Trib is a concrete culvert carrying FAS 604 over Bay Creek Trib in Pike County, Illinois. It was built in 1971, so it is 54 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 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 700 vehicles a day, roughly 11% of them trucks, projected to reach 812 by 2046. The structure is 32 ft (9.8 m) long and 32 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesFAS 604
CrossesBay Creek Trib
Location.5 M N Ch 10
RouteCounty Highway 0
Coordinates39.44949, -90.78158
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length32 ft (9.8 m)
Longest span10 ft (3.2 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic700 (2023)
Projected traffic812 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 604 over Bay Creek Trib built?

It was built in 1971, making it 54 years old in 2025.

What condition is FAS 604 over Bay Creek Trib 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 April 2024.

How much traffic does FAS 604 over Bay Creek Trib carry?

About 700 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is FAS 604 over Bay Creek Trib?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3.2 m) and a deck 32 ft wide.

Who owns FAS 604 over Bay Creek Trib?

It is owned by the County Highway Agency.