US Bridges

TR 146 over Unnamed Stream

Good

Champaign County, Illinois · 3.1MI Nne I-57&I-74 · Structure no. 010449100000000

Built
2002
23 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
34 ft
3 main spans
Daily traffic
575
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 146 over Unnamed Stream is a concrete culvert carrying TR 146 over Unnamed Stream in Champaign County, Illinois. It was built in 2002, so it is 23 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 575 vehicles a day, roughly 2% of them trucks, projected to reach 581 by 2046. The structure is 34 ft (10.4 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTR 146
CrossesUnnamed Stream
Location3.1MI Nne I-57&I-74
RouteCounty Highway 0
Coordinates40.18653, -88.25848
Functional classRural Minor Collector

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 inspectionFebruary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic575 (2021)
Projected traffic581 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 146 over Unnamed Stream built?

It was built in 2002, making it 23 years old in 2025.

What condition is TR 146 over Unnamed Stream 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 February 2024.

How much traffic does TR 146 over Unnamed Stream carry?

About 575 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is TR 146 over Unnamed Stream?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m) and a deck 32 ft wide.

Who owns TR 146 over Unnamed Stream?

It is owned by the Town or Township Highway Agency.