US Bridges

Ill 34 over Trib to S. Fork

Good

Saline County, Illinois · 2.7 MI E of Ill 145 · Structure no. 083201600000000

Built
2004
21 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
1,650
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 34 over Trib to S. Fork is a concrete culvert carrying Ill 34 over Trib to S. Fork in Saline County, Illinois. It was built in 2004, so it is 21 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 1,650 vehicles a day, roughly 9% of them trucks, projected to reach 1,919 by 2046. The structure is 26 ft (7.8 m) long and 45 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesIll 34
CrossesTrib to S. Fork
Location2.7 MI E of Ill 145
RouteState Highway 34
Coordinates37.63579, -88.48388
Functional classRural Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
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 rating71.1 US tons
Inventory rating42.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span12 ft (3.8 m)
Deck width45 ft (13.7 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,650 (2023)
Projected traffic1,919 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Ill 34 over Trib to S. Fork built?

It was built in 2004, making it 21 years old in 2025.

What condition is Ill 34 over Trib to S. Fork 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 2024.

How much traffic does Ill 34 over Trib to S. Fork carry?

About 1,650 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Ill 34 over Trib to S. Fork?

The structure is 26 ft (7.8 m) long with a longest span of 12 ft (3.8 m) and a deck 45 ft wide.

Who owns Ill 34 over Trib to S. Fork?

It is owned by the State Highway Agency.