US Bridges

Summerfield Ch 50 over Rheinhardt Slough

Fair

St. Clair County, Illinois · 1.3MI N Ill RTE 177 · Structure no. 082301900000000

Built
1943
82 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
24 ft
3 main spans
Daily traffic
250
2023 count
Owner
County
County Highway Agency

About this bridge

Summerfield Ch 50 over Rheinhardt Slough is a concrete culvert carrying Summerfield Ch 50 over Rheinhardt Slough in St. Clair County, Illinois. It was built in 1943, so it is 82 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 250 vehicles a day, roughly 11% of them trucks, projected to reach 379 by 2046. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSummerfield Ch 50
CrossesRheinhardt Slough
Location1.3MI N Ill RTE 177
RouteCounty Highway 0
Coordinates38.50152, -89.75119
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 protection7 GoodSome minor problems.
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating43.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length24 ft (7.3 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic379 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 Summerfield Ch 50 over Rheinhardt Slough built?

It was built in 1943, making it 82 years old in 2025.

What condition is Summerfield Ch 50 over Rheinhardt Slough 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 Summerfield Ch 50 over Rheinhardt Slough carry?

About 250 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Summerfield Ch 50 over Rheinhardt Slough?

The structure is 24 ft (7.3 m) long with a longest span of 7 ft (2.1 m).

Who owns Summerfield Ch 50 over Rheinhardt Slough?

It is owned by the County Highway Agency.