US Bridges

Il 78 over Panther Creek Ovrflw

Good

Cass County, Illinois · SW Side Chanlerville · Structure no. 009251100000000

Built
2012
13 years old
Condition
Good
inspected October 2022
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
1,450
2023 count
Owner
State
State Highway Agency

About this bridge

Il 78 over Panther Creek Ovrflw is a concrete culvert carrying Il 78 over Panther Creek Ovrflw in Cass County, Illinois. It was built in 2012, so it is 13 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,450 vehicles a day, roughly 10% of them trucks, projected to reach 1,919 by 2046. The structure is 27 ft (8.1 m) long. If it were closed, the detour would be 29.8 mi (48 km).

CarriesIl 78
CrossesPanther Creek Ovrflw
LocationSW Side Chanlerville
RouteState Highway 78
Coordinates40.04421, -90.15773
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating47.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.1 m)
Longest span12 ft (3.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,450 (2023)
Projected traffic1,919 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 Il 78 over Panther Creek Ovrflw built?

It was built in 2012, making it 13 years old in 2025.

What condition is Il 78 over Panther Creek Ovrflw 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 October 2022.

How much traffic does Il 78 over Panther Creek Ovrflw carry?

About 1,450 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Il 78 over Panther Creek Ovrflw?

The structure is 27 ft (8.1 m) long with a longest span of 12 ft (3.8 m).

Who owns Il 78 over Panther Creek Ovrflw?

It is owned by the State Highway Agency.