US Bridges

TR 145 over Unnamed Trib

Good

Livingston County, Illinois · 805E 1500N · Structure no. 053552700000000

Built
2005
20 years old
Condition
Good
inspected July 2022
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
75
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 145 over Unnamed Trib is a concrete culvert carrying TR 145 over Unnamed Trib in Livingston County, Illinois. It was built in 2005, so it is 20 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 75 vehicles a day, projected to reach 76 by 2046. The structure is 23 ft (7 m) long and 28 ft wide.

CarriesTR 145
CrossesUnnamed Trib
Location805E 1500N
RouteCounty Highway 0
Coordinates40.84294, -88.77596
Functional classRural Local

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.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic76 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 145 over Unnamed Trib built?

It was built in 2005, making it 20 years old in 2025.

What condition is TR 145 over Unnamed Trib 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 July 2022.

How much traffic does TR 145 over Unnamed Trib carry?

About 75 vehicles per day (2023 count).

How long is TR 145 over Unnamed Trib?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3.2 m) and a deck 28 ft wide.

Who owns TR 145 over Unnamed Trib?

It is owned by the Town or Township Highway Agency.