US Bridges

TR 350 over Trib Harris Br

Good

Schuyler County, Illinois · 3 M N Browning · Structure no. 085441800000000

Built
2008
17 years old
Condition
Good
inspected November 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
31 ft
1 main span
Daily traffic
25
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 350 over Trib Harris Br is a aluminum, wrought iron, or cast iron culvert carrying TR 350 over Trib Harris Br in Schuyler County, Illinois. It was built in 2008, so it is 17 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 25 vehicles a day, roughly 12% of them trucks, projected to reach 25 by 2046. The structure is 31 ft (9.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 350
CrossesTrib Harris Br
Location3 M N Browning
RouteCounty Highway 0
Coordinates40.18193, -90.37842
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20
Structure length31 ft (9.3 m)
Longest span31 ft (9.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic25 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 350 over Trib Harris Br built?

It was built in 2008, making it 17 years old in 2025.

What condition is TR 350 over Trib Harris Br 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 November 2024.

How much traffic does TR 350 over Trib Harris Br carry?

About 25 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is TR 350 over Trib Harris Br?

The structure is 31 ft (9.3 m) long with a longest span of 31 ft (9.3 m).

Who owns TR 350 over Trib Harris Br?

It is owned by the Town or Township Highway Agency.