US Bridges

TR 45 Kirby RD over Stream

Fair

Macon County, Illinois · 4 MI S of Argenta · Structure no. 058502900000000

Built
1962
63 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
550
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 45 Kirby RD over Stream is a concrete continuous culvert carrying TR 45 Kirby RD over Stream in Macon County, Illinois. It was built in 1962, so it is 63 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 550 vehicles a day, roughly 1% of them trucks, projected to reach 556 by 2046. The structure is 24 ft (7.3 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTR 45 Kirby RD
CrossesStream
Location4 MI S of Argenta
RouteCounty Highway 0
CountyMacon County
StateIllinois
Coordinates39.92711, -88.82713
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 inspectionJanuary 2025
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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.3 US tons
Inventory rating22.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 15
Structure length24 ft (7.3 m)
Longest span11 ft (3.5 m)
Deck width25 ft (7.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2020)
Projected traffic556 by 2046
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 45 Kirby RD over Stream built?

It was built in 1962, making it 63 years old in 2025.

What condition is TR 45 Kirby RD over Stream 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 January 2025.

How much traffic does TR 45 Kirby RD over Stream carry?

About 550 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is TR 45 Kirby RD over Stream?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.5 m) and a deck 25 ft wide.

Who owns TR 45 Kirby RD over Stream?

It is owned by the Town or Township Highway Agency.