US Bridges

TR 50 over Stream

Fair

Piatt County, Illinois · 1 MI SW of Harris · Structure no. 074314500000000

Built
1969
56 years old
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
58 ft
2 main spans
Daily traffic
50
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 50 over Stream is a prestressed concrete box beam or girders - multiple carrying TR 50 over Stream in Piatt County, Illinois. It was built in 1969, so it is 56 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 50 vehicles a day, roughly 2% of them trucks, projected to reach 51 by 2046. The structure is 58 ft (17.6 m) long and 26 ft wide.

Location

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CarriesTR 50
CrossesStream
Location1 MI SW of Harris
RouteCounty Highway 0
CountyPiatt County
StateIllinois
Coordinates40.22843, -88.60823
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating30.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 15
Structure length58 ft (17.6 m)
Longest span28 ft (8.5 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic51 by 2046
Trucks2%
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 50 over Stream built?

It was built in 1969, making it 56 years old in 2025.

What condition is TR 50 over Stream 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 2023.

How much traffic does TR 50 over Stream carry?

About 50 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is TR 50 over Stream?

The structure is 58 ft (17.6 m) long with a longest span of 28 ft (8.5 m) and a deck 26 ft wide.

Who owns TR 50 over Stream?

It is owned by the Town or Township Highway Agency.