US Bridges

TR 480 over Schearles Branch

Good

Macoupin County, Illinois · 2.5 Miles NE of Nilwood · Structure no. 059352000000000

Built
2022
3 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
69 ft
1 main span
Daily traffic
50
2021 count
Owner
County
County Highway Agency

About this bridge

TR 480 over Schearles Branch is a prestressed concrete box beam or girders - multiple carrying TR 480 over Schearles Branch in Macoupin County, Illinois. It was built in 2022, so it is 3 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 50 vehicles a day, roughly 16% of them trucks, projected to reach 51 by 2046. The structure is 69 ft (21.1 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesTR 480
CrossesSchearles Branch
Location2.5 Miles NE of Nilwood
RouteCounty Highway 0
Coordinates39.41247, -89.76537
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length69 ft (21.1 m)
Longest span67 ft (20.4 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2021)
Projected traffic51 by 2046
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was TR 480 over Schearles Branch built?

It was built in 2022, making it 3 years old in 2025.

What condition is TR 480 over Schearles Branch 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 2023.

How much traffic does TR 480 over Schearles Branch carry?

About 50 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is TR 480 over Schearles Branch?

The structure is 69 ft (21.1 m) long with a longest span of 67 ft (20.4 m) and a deck 27 ft wide.

Who owns TR 480 over Schearles Branch?

It is owned by the County Highway Agency.