US Bridges

TR 71 over Drainage Ditch

Fair

Piatt County, Illinois · 3.0 MI S Weldon · Structure no. 074305200000000

Built
1900
125 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
50
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 71 over Drainage Ditch is a concrete slab carrying TR 71 over Drainage Ditch in Piatt County, Illinois. It was built in 1900, so it is 125 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, projected to reach 51 by 2046. The structure is 33 ft (10.2 m) long and 24 ft wide.

CarriesTR 71
CrossesDrainage Ditch
Location3.0 MI S Weldon
RouteCounty Highway 0
Coordinates40.08426, -88.74512
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.8 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length33 ft (10.2 m)
Longest span32 ft (9.9 m)
Deck width24 ft (7.4 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic51 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 71 over Drainage Ditch built?

It was built in 1900, making it 125 years old in 2025.

What condition is TR 71 over Drainage Ditch 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 December 2024.

How much traffic does TR 71 over Drainage Ditch carry?

About 50 vehicles per day (2020 count).

How long is TR 71 over Drainage Ditch?

The structure is 33 ft (10.2 m) long with a longest span of 32 ft (9.9 m) and a deck 24 ft wide.

Who owns TR 71 over Drainage Ditch?

It is owned by the Town or Township Highway Agency.