US Bridges

TR-394 over Seven Mile Creek

Good

Jefferson County, Illinois · 1 MI S Mt Vern Airpt · Structure no. 041501100000000

Built
1982
43 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
50
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-394 over Seven Mile Creek is a concrete culvert carrying TR-394 over Seven Mile Creek in Jefferson County, Illinois. It was built in 1982, so it is 43 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 50 vehicles a day, roughly 12% of them trucks, projected to reach 51 by 2046. The structure is 22 ft (6.6 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesTR-394
CrossesSeven Mile Creek
Location1 MI S Mt Vern Airpt
RouteCounty Highway 0
Coordinates38.30085, -88.84483
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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than 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 length22 ft (6.6 m)
Longest span10 ft (3 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2021)
Projected traffic51 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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-394 over Seven Mile Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is TR-394 over Seven Mile 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 February 2023.

How much traffic does TR-394 over Seven Mile Creek carry?

About 50 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is TR-394 over Seven Mile Creek?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns TR-394 over Seven Mile Creek?

It is owned by the Town or Township Highway Agency.