US Bridges

FAS Rt 835 over Elkhorn Creek

Fair

Washington County, Illinois · 2.2 MI NE of Oakdale · Structure no. 095313400000000

Built
1940
85 years old, rebuilt 1975
Condition
Fair
inspected October 2024
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
1,200
2024 count
Owner
County
County Highway Agency

About this bridge

FAS Rt 835 over Elkhorn Creek is a concrete continuous culvert carrying FAS Rt 835 over Elkhorn Creek in Washington County, Illinois. It was built in 1940 and reconstructed in 1975, so it is 85 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 1,200 vehicles a day, roughly 11% of them trucks, projected to reach 1,210 by 2046. The structure is 30 ft (9.1 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFAS Rt 835
CrossesElkhorn Creek
Location2.2 MI NE of Oakdale
RouteCounty Highway 0
Coordinates38.28621, -89.47804
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating34.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span13 ft (4 m)
Deck width47 ft (14.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2024)
Projected traffic1,210 by 2046
Trucks11%
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 Rt 835 over Elkhorn Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1975.

What condition is FAS Rt 835 over Elkhorn 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 October 2024.

How much traffic does FAS Rt 835 over Elkhorn Creek carry?

About 1,200 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is FAS Rt 835 over Elkhorn Creek?

The structure is 30 ft (9.1 m) long with a longest span of 13 ft (4 m) and a deck 47 ft wide.

Who owns FAS Rt 835 over Elkhorn Creek?

It is owned by the County Highway Agency.