US Bridges

FAS 206-CH 4 over Camp Creek

Fair

Mercer County, Illinois · SW-12-T15NR1W · Structure no. 066311200000000

Built
1958
67 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
101 ft
3 main spans
Daily traffic
950
2024 count
Owner
County
County Highway Agency

About this bridge

FAS 206-CH 4 over Camp Creek is a concrete continuous slab carrying FAS 206-CH 4 over Camp Creek in Mercer County, Illinois. It was built in 1958, so it is 67 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 950 vehicles a day, roughly 17% of them trucks, projected to reach 1,111 by 2046. The structure is 101 ft (30.8 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFAS 206-CH 4
CrossesCamp Creek
LocationSW-12-T15NR1W
RouteCounty Highway 0
Coordinates41.30109, -90.45139
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 rating38.6 US tons
Inventory rating23.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length101 ft (30.8 m)
Longest span39 ft (11.9 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic950 (2024)
Projected traffic1,111 by 2046
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 206-CH 4 over Camp Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is FAS 206-CH 4 over Camp 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 September 2024.

How much traffic does FAS 206-CH 4 over Camp Creek carry?

About 950 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is FAS 206-CH 4 over Camp Creek?

The structure is 101 ft (30.8 m) long with a longest span of 39 ft (11.9 m) and a deck 27 ft wide.

Who owns FAS 206-CH 4 over Camp Creek?

It is owned by the County Highway Agency.