US Bridges

US RTE 51 over Creek

Fair

Union County, Illinois · 2.0 MI S Jackson CO · Structure no. 091200700000000

Built
1968
57 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
5,500
2023 count
Owner
State
State Highway Agency

About this bridge

US RTE 51 over Creek is a concrete continuous culvert carrying US RTE 51 over Creek in Union County, Illinois. It was built in 1968, so it is 57 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 5,500 vehicles a day, roughly 10% of them trucks, projected to reach 4,949 by 2046. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesUS RTE 51
CrossesCreek
Location2.0 MI S Jackson CO
RouteU.S. Route 51
Coordinates37.57006, -89.23373
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating98.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (6.9 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2023)
Projected traffic4,949 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 RTE 51 over Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is US RTE 51 over 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 January 2024.

How much traffic does US RTE 51 over Creek carry?

About 5,500 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is US RTE 51 over Creek?

The structure is 23 ft (6.9 m) long with a longest span of 11 ft (3.4 m).

Who owns US RTE 51 over Creek?

It is owned by the State Highway Agency.