US Bridges

KY61N over Smith Branch

Good

Cumberland County, Kentucky · 0.438 S. of N JCT Ky 3140 · Structure no. 029B00063N

Built
2010
15 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
29 ft
1 main span
Daily traffic
1,762
2023 count
Owner
State
State Highway Agency

About this bridge

KY61N over Smith Branch is a prestressed concrete box beam or girders - single or spread carrying KY61N over Smith Branch in Cumberland County, Kentucky. It was built in 2010, so it is 15 years old, younger 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 1,762 vehicles a day, roughly 28% of them trucks, projected to reach 1,762 by 2043. The structure is 29 ft (8.8 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesKY61N
CrossesSmith Branch
Location0.438 S. of N JCT Ky 3140
RouteState Highway 61
CountyCumberland County
StateKentucky
Coordinates36.88389, -85.41028
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.9 US tons
Inventory rating55.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length29 ft (8.8 m)
Longest span26 ft (7.9 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,762 (2023)
Projected traffic1,762 by 2043
Trucks28%
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

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 KY61N over Smith Branch built?

It was built in 2010, making it 15 years old in 2025.

What condition is KY61N over Smith Branch 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 2024.

How much traffic does KY61N over Smith Branch carry?

About 1,762 vehicles per day (2023 count), of which roughly 28% are trucks.

How long is KY61N over Smith Branch?

The structure is 29 ft (8.8 m) long with a longest span of 26 ft (7.9 m) and a deck 43 ft wide.

Who owns KY61N over Smith Branch?

It is owned by the State Highway Agency.