US Bridges

Ky 623 over Salt River

Fair

Spencer County, Kentucky · 1 MI S of Ky 44 · Structure no. 108B00037N

Built
1984
41 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
343 ft
4 main spans
Daily traffic
711
2019 count
Owner
State
State Highway Agency

About this bridge

Ky 623 over Salt River is a prestressed concrete continuous stringer/multi-beam or girder carrying Ky 623 over Salt River in Spencer County, Kentucky. It was built in 1984, so it is 41 years old, younger than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 711 vehicles a day, projected to reach 711 by 2039. The structure is 343 ft (104.4 m) long and 31 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesKy 623
CrossesSalt River
Location1 MI S of Ky 44
RouteState Highway 623
CountySpencer County
StateKentucky
Coordinates38.02389, -85.43111
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure9 ExcellentNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating97.7 US tons
Inventory rating58.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length343 ft (104.4 m)
Longest span95 ft (29 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic711 (2019)
Projected traffic711 by 2039
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Ky 623 over Salt River built?

It was built in 1984, making it 41 years old in 2025.

What condition is Ky 623 over Salt River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2023.

How much traffic does Ky 623 over Salt River carry?

About 711 vehicles per day (2019 count).

How long is Ky 623 over Salt River?

The structure is 343 ft (104.4 m) long with a longest span of 95 ft (29 m) and a deck 31 ft wide.

Who owns Ky 623 over Salt River?

It is owned by the State Highway Agency.