US Bridges

TR 34 over South Fork Creek

Good

Macon County, Illinois · 3.5 Mi.Nw Warrensbur · Structure no. 058336900000000

Built
2005
20 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Steel
Length
101 ft
3 main spans
Daily traffic
50
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 34 over South Fork Creek is a steel box beam or girders - multiple carrying TR 34 over South Fork Creek in Macon County, Illinois. It was built in 2005, so it is 20 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 50 vehicles a day, roughly 8% of them trucks, projected to reach 51 by 2046. The structure is 101 ft (30.7 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTR 34
CrossesSouth Fork Creek
Location3.5 Mi.Nw Warrensbur
RouteCounty Highway 0
Coordinates39.96898, -89.10508
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length101 ft (30.7 m)
Longest span41 ft (12.6 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic51 by 2046
Trucks8%
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 34 over South Fork Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is TR 34 over South Fork Creek 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 January 2025.

How much traffic does TR 34 over South Fork Creek carry?

About 50 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is TR 34 over South Fork Creek?

The structure is 101 ft (30.7 m) long with a longest span of 41 ft (12.6 m) and a deck 24 ft wide.

Who owns TR 34 over South Fork Creek?

It is owned by the Town or Township Highway Agency.