US Bridges

US 50 over W Trib to Prairie CR

Fair

Marion County, Illinois · NE of Sandoval · Structure no. 061201500000000

Built
1923
102 years old, rebuilt 1951
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
6,050
2023 count
Owner
State
State Highway Agency

About this bridge

US 50 over W Trib to Prairie CR is a concrete culvert carrying US 50 over W Trib to Prairie CR in Marion County, Illinois. It was built in 1923 and reconstructed in 1951, so it is 102 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 5 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 6,050 vehicles a day, roughly 16% of them trucks, projected to reach 5,808 by 2046. The structure is 22 ft (6.7 m) long and 45 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesUS 50
CrossesW Trib to Prairie CR
LocationNE of Sandoval
RouteU.S. Route 50
CountyMarion County
StateIllinois
Coordinates38.61986, -89.10251
Functional classRural Principal Arterial - Other

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating30.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span11 ft (3.3 m)
Deck width45 ft (13.8 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,050 (2023)
Projected traffic5,808 by 2046
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 50 over W Trib to Prairie CR built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 1951.

What condition is US 50 over W Trib to Prairie CR 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 July 2023.

How much traffic does US 50 over W Trib to Prairie CR carry?

About 6,050 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is US 50 over W Trib to Prairie CR?

The structure is 22 ft (6.7 m) long with a longest span of 11 ft (3.3 m) and a deck 45 ft wide.

Who owns US 50 over W Trib to Prairie CR?

It is owned by the State Highway Agency.