US Bridges

TR-479 over Dismal Creek

Good

Fayette County, Illinois · 3 MI NW LA Clede · Structure no. 026330200000000

Built
1979
46 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
50
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-479 over Dismal Creek is a concrete culvert carrying TR-479 over Dismal Creek in Fayette County, Illinois. It was built in 1979, so it is 46 years old, older 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 22 ft (6.7 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTR-479
CrossesDismal Creek
Location3 MI NW LA Clede
RouteCounty Highway 0
Coordinates38.90592, -88.76867
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2023
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 alignment6: Equal to 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 (6.7 m)
Longest span11 ft (3.3 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
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-479 over Dismal Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is TR-479 over Dismal 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 2023.

How much traffic does TR-479 over Dismal Creek carry?

About 50 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is TR-479 over Dismal Creek?

The structure is 22 ft (6.7 m) long with a longest span of 11 ft (3.3 m) and a deck 26 ft wide.

Who owns TR-479 over Dismal Creek?

It is owned by the Town or Township Highway Agency.