US Bridges

TR 451 over Unnamed Waterway

Good

McLean County, Illinois · 4 MI S of Arrowsmith · Structure no. 057573600000000

Built
2022
3 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
27 ft
1 main span
Daily traffic
50
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 451 over Unnamed Waterway is a concrete culvert carrying TR 451 over Unnamed Waterway in McLean 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 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 50 vehicles a day, roughly 4% of them trucks, projected to reach 250 by 2032. The structure is 27 ft (8.3 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTR 451
CrossesUnnamed Waterway
Location4 MI S of Arrowsmith
RouteCounty Highway 0
CountyMcLean County
StateIllinois
Coordinates40.39117, -88.62369
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length27 ft (8.3 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic250 by 2032
Trucks4%
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 451 over Unnamed Waterway built?

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

What condition is TR 451 over Unnamed Waterway 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 May 2023.

How much traffic does TR 451 over Unnamed Waterway carry?

About 50 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is TR 451 over Unnamed Waterway?

The structure is 27 ft (8.3 m) long with a longest span of 13 ft (3.9 m).

Who owns TR 451 over Unnamed Waterway?

It is owned by the Town or Township Highway Agency.