TR 35 a over Lake Fork Branch

Good

Shelby County, Illinois · 3.2 MI NW Yantisvill · Structure no. 087341700000000

Built: 1987; 38 years old
Condition: Good; inspected April 2023
Type: Culvert; Concrete
Length: 44 ft; 2 main spans
Daily traffic: 150; 2024 count
Owner: Town / Township; Town or Township Highway Agency

About this bridge

TR 35 a over Lake Fork Branch is a concrete culvert carrying TR 35 a over Lake Fork Branch in Shelby County, Illinois. It was built in 1987, so it is 38 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 150 vehicles a day, roughly 9% of them trucks, projected to reach 101 by 2046. The structure is 44 ft (13.5 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesTR 35 a

CrossesLake Fork Branch

Location3.2 MI NW Yantisvill

RouteCounty Highway 0

CountyShelby County

StateIllinois

Coordinates39.56583, -88.93444

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.

Component	Rating	Meaning
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.
Culvert	7 Good	Some minor problems.

Last inspectionApril 2023

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation7: Better than present minimum criteria

Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment6: Equal to present minimum criteria

Operating rating48.9 US tons

Inventory rating35.7 US tons

Structure

Structure typeCulvert

MaterialConcrete

DeckNot applicable

Main spans2

Design loadHS 20

Structure length44 ft (13.5 m)

Longest span16 ft (4.9 m)

Deck width24 ft (7.3 m)

Roadway width24 ft (7.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2024)

Projected traffic101 by 2046

Trucks9%

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 35 a over Lake Fork Branch built?

It was built in 1987, making it 38 years old in 2025.

What condition is TR 35 a over Lake Fork 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 April 2023.

How much traffic does TR 35 a over Lake Fork Branch carry?

About 150 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is TR 35 a over Lake Fork Branch?

The structure is 44 ft (13.5 m) long with a longest span of 16 ft (4.9 m) and a deck 24 ft wide.

Who owns TR 35 a over Lake Fork Branch?

It is owned by the Town or Township Highway Agency.