US Bridges

TR-51 over Mitchell Creek

Fair

Fayette County, Illinois · 2 MI SE Herick · Structure no. 026326800000000

Built
1977
48 years old
Condition
Fair
inspected February 2024
Type
Channel Beam
Concrete
Length
74 ft
2 main spans
Daily traffic
50
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-51 over Mitchell Creek is a concrete channel beam carrying TR-51 over Mitchell Creek in Fayette County, Illinois. It was built in 1977, so it is 48 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 50 vehicles a day, roughly 6% of them trucks, projected to reach 77 by 2046. The structure is 74 ft (22.6 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTR-51
CrossesMitchell Creek
Location2 MI SE Herick
RouteCounty Highway 0
CountyFayette County
StateIllinois
Coordinates39.1873, -88.94197
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span35 ft (10.7 m)
Deck width23 ft (6.9 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic77 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 TR-51 over Mitchell Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is TR-51 over Mitchell 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 February 2024.

How much traffic does TR-51 over Mitchell Creek carry?

About 50 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is TR-51 over Mitchell Creek?

The structure is 74 ft (22.6 m) long with a longest span of 35 ft (10.7 m) and a deck 23 ft wide.

Who owns TR-51 over Mitchell Creek?

It is owned by the Town or Township Highway Agency.