US Bridges

TR 114B(RILEY Rd) over Willow Branch

Fair

Macon County, Illinois · 1.2 MI SE of Macon · Structure no. 058501700000000

Built
1977
48 years old
Condition
Fair
inspected February 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
20 ft
1 main span
Daily traffic
25
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 114B(RILEY Rd) over Willow Branch is a aluminum, wrought iron, or cast iron culvert carrying TR 114B(RILEY Rd) over Willow Branch in Macon County, Illinois. It was built in 1977, so it is 48 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 25 vehicles a day, roughly 8% of them trucks, projected to reach 25 by 2046. The structure is 20 ft (6.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 114B(RILEY Rd)
CrossesWillow Branch
Location1.2 MI SE of Macon
RouteCounty Highway 0
CountyMacon County
StateIllinois
Coordinates39.69908, -88.97871
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.9 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20
Structure length20 ft (6.2 m)
Longest span20 ft (6.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2020)
Projected traffic25 by 2046
Trucks8%
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 114B(RILEY Rd) over Willow Branch built?

It was built in 1977, making it 48 years old in 2025.

What condition is TR 114B(RILEY Rd) over Willow Branch 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 February 2024.

How much traffic does TR 114B(RILEY Rd) over Willow Branch carry?

About 25 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is TR 114B(RILEY Rd) over Willow Branch?

The structure is 20 ft (6.2 m) long with a longest span of 20 ft (6.2 m).

Who owns TR 114B(RILEY Rd) over Willow Branch?

It is owned by the Town or Township Highway Agency.