US Bridges

TR 1A(LAKE Fork RD over Stream

Fair

Macon County, Illinois · 5.3 MI NW of Argenta · Structure no. 058503700000000

Built
1991
34 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
75
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 1A(LAKE Fork RD over Stream is a concrete culvert carrying TR 1A(LAKE Fork RD over Stream in Macon County, Illinois. It was built in 1991, so it is 34 years old, younger 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 6 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 75 vehicles a day, roughly 7% of them trucks, projected to reach 76 by 2046. The structure is 24 ft (7.2 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTR 1A(LAKE Fork RD
CrossesStream
Location5.3 MI NW of Argenta
RouteCounty Highway 0
CountyMacon County
StateIllinois
Coordinates40.05403, -88.87452
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.2 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2020)
Projected traffic76 by 2046
Trucks7%
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 1A(LAKE Fork RD over Stream built?

It was built in 1991, making it 34 years old in 2025.

What condition is TR 1A(LAKE Fork 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 2024.

How much traffic does TR 1A(LAKE Fork RD over Stream carry?

About 75 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is TR 1A(LAKE Fork RD over Stream?

The structure is 24 ft (7.2 m) long with a longest span of 11 ft (3.5 m).

Who owns TR 1A(LAKE Fork RD over Stream?

It is owned by the Town or Township Highway Agency.