US Bridges

Concordia Ch Rd/Ch over Branch Prare Du Pont

Fair

St. Clair County, Illinois · 2.3MI E Ill RTE 163 · Structure no. 082301800000000

Built
1967
58 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
800
2023 count
Owner
County
County Highway Agency

About this bridge

Concordia Ch Rd/Ch over Branch Prare Du Pont is a concrete continuous culvert carrying Concordia Ch Rd/Ch over Branch Prare Du Pont in St. Clair County, Illinois. It was built in 1967, so it is 58 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 800 vehicles a day, roughly 8% of them trucks, projected to reach 1,566 by 2046. The structure is 27 ft (8.1 m) long and 42 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesConcordia Ch Rd/Ch
CrossesBranch Prare Du Pont
Location2.3MI E Ill RTE 163
RouteCounty Highway 0
Coordinates38.49856, -90.05868
Functional classRural Minor 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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating96.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.1 m)
Longest span13 ft (3.9 m)
Deck width42 ft (12.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2023)
Projected traffic1,566 by 2046
Trucks8%
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 Concordia Ch Rd/Ch over Branch Prare Du Pont built?

It was built in 1967, making it 58 years old in 2025.

What condition is Concordia Ch Rd/Ch over Branch Prare Du Pont 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 February 2024.

How much traffic does Concordia Ch Rd/Ch over Branch Prare Du Pont carry?

About 800 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Concordia Ch Rd/Ch over Branch Prare Du Pont?

The structure is 27 ft (8.1 m) long with a longest span of 13 ft (3.9 m) and a deck 42 ft wide.

Who owns Concordia Ch Rd/Ch over Branch Prare Du Pont?

It is owned by the County Highway Agency.