US Bridges

KY-55 over Seibert Creek

Good

Washington County, Kentucky · 1.1 MI Sou. of JCT Ky 438 · Structure no. 115B00026N

Built
1933
92 years old, rebuilt 2019
Condition
Good
inspected March 2022
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
1,312
2022 count
Owner
State
State Highway Agency

About this bridge

KY-55 over Seibert Creek is a prestressed concrete box beam or girders - single or spread carrying KY-55 over Seibert Creek in Washington County, Kentucky. It was built in 1933 and reconstructed in 2019, so it is 92 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 1,312 vehicles a day, roughly 15% of them trucks, projected to reach 1,312 by 2042. The structure is 48 ft (14.6 m) long and 26 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesKY-55
CrossesSeibert Creek
Location1.1 MI Sou. of JCT Ky 438
RouteState Highway 55
CountyWashington County
StateKentucky
Coordinates37.745, -85.26278
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating77.2 US tons
Inventory rating59.3 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length48 ft (14.6 m)
Longest span45 ft (13.7 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,312 (2022)
Projected traffic1,312 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$145,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-55 over Seibert Creek built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2019.

What condition is KY-55 over Seibert 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 March 2022.

How much traffic does KY-55 over Seibert Creek carry?

About 1,312 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is KY-55 over Seibert Creek?

The structure is 48 ft (14.6 m) long with a longest span of 45 ft (13.7 m) and a deck 26 ft wide.

Who owns KY-55 over Seibert Creek?

It is owned by the State Highway Agency.