US Bridges

US 50 over E Trib Prairie Br

Good

Clinton County, Illinois · 6.5 MI E of Carlyle · Structure no. 014202400000000

Built
2012
13 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
4,250
2023 count
Owner
State
State Highway Agency

About this bridge

US 50 over E Trib Prairie Br is a concrete continuous culvert carrying US 50 over E Trib Prairie Br in Clinton County, Illinois. It was built in 2012, so it is 13 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,250 vehicles a day, roughly 16% of them trucks, projected to reach 4,785 by 2046. The structure is 27 ft (8.1 m) long and 39 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesUS 50
CrossesE Trib Prairie Br
Location6.5 MI E of Carlyle
RouteU.S. Route 50
Coordinates38.61731, -89.24199
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating83.9 US tons
Inventory rating50.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.1 m)
Longest span12 ft (3.7 m)
Deck width39 ft (12 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,250 (2023)
Projected traffic4,785 by 2046
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 E Trib Prairie Br built?

It was built in 2012, making it 13 years old in 2025.

What condition is US 50 over E Trib Prairie Br in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does US 50 over E Trib Prairie Br carry?

About 4,250 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is US 50 over E Trib Prairie Br?

The structure is 27 ft (8.1 m) long with a longest span of 12 ft (3.7 m) and a deck 39 ft wide.

Who owns US 50 over E Trib Prairie Br?

It is owned by the State Highway Agency.