US Bridges

Ill 104 over Panther Creek

Good

Christian County, Illinois · .5M W Il 29 · Structure no. 011201300000000

Built
1995
30 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
50 ft
3 main spans
Daily traffic
4,800
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 104 over Panther Creek is a concrete culvert carrying Ill 104 over Panther Creek in Christian County, Illinois. It was built in 1995, so it is 30 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 4,800 vehicles a day, roughly 7% of them trucks, projected to reach 4,697 by 2046. The structure is 50 ft (15.1 m) long and 68 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesIll 104
CrossesPanther Creek
Location.5M W Il 29
RouteState Highway 104
Coordinates39.56726, -89.32414
Functional classUrban 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 inspectionJune 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.4 US tons
Inventory rating55 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length50 ft (15.1 m)
Longest span16 ft (4.8 m)
Deck width68 ft (20.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,800 (2023)
Projected traffic4,697 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 104 over Panther Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Ill 104 over Panther 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 June 2024.

How much traffic does Ill 104 over Panther Creek carry?

About 4,800 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Ill 104 over Panther Creek?

The structure is 50 ft (15.1 m) long with a longest span of 16 ft (4.8 m) and a deck 68 ft wide.

Who owns Ill 104 over Panther Creek?

It is owned by the State Highway Agency.