US Bridges

KY-473 over Unnamed Stream

Good

Ballard County, Kentucky · 1.8 MI West of JCT Ky 178 · Structure no. 004B00031N

Built
1959
66 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
81
2022 count
Owner
State
State Highway Agency

About this bridge

KY-473 over Unnamed Stream is a concrete culvert carrying KY-473 over Unnamed Stream in Ballard County, Kentucky. It was built in 1959, so it is 66 years old, older than the Kentucky average of 46.6 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 81 vehicles a day, projected to reach 81 by 2042. The structure is 24 ft (7.3 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesKY-473
CrossesUnnamed Stream
Location1.8 MI West of JCT Ky 178
RouteState Highway 473
CountyBallard County
StateKentucky
Coordinates37.18389, -88.97472
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 inspectionApril 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 alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length24 ft (7.3 m)
Longest span12 ft (3.7 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic81 (2022)
Projected traffic81 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-473 over Unnamed Stream built?

It was built in 1959, making it 66 years old in 2025.

What condition is KY-473 over Unnamed Stream 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 April 2023.

How much traffic does KY-473 over Unnamed Stream carry?

About 81 vehicles per day (2022 count).

How long is KY-473 over Unnamed Stream?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m) and a deck 27 ft wide.

Who owns KY-473 over Unnamed Stream?

It is owned by the State Highway Agency.