US Bridges

KY-3411 over Rockcastle CR

Good

Martin County, Kentucky · .371 MI E of JCT Ky 645 · Structure no. 080B00047N

Built
2011
14 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
108 ft
1 main span
Daily traffic
434
2021 count
Owner
State
State Highway Agency

About this bridge

KY-3411 over Rockcastle CR is a prestressed concrete box beam or girders - single or spread carrying KY-3411 over Rockcastle CR in Martin County, Kentucky. It was built in 2011, so it is 14 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 434 vehicles a day, projected to reach 434 by 2041. The structure is 108 ft (32.9 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesKY-3411
CrossesRockcastle CR
Location.371 MI E of JCT Ky 645
RouteState Highway 3411
CountyMartin County
StateKentucky
Coordinates37.89639, -82.55917
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.2 US tons
Inventory rating41.1 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 length108 ft (32.9 m)
Longest span105 ft (32 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic434 (2021)
Projected traffic434 by 2041
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 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-3411 over Rockcastle CR built?

It was built in 2011, making it 14 years old in 2025.

What condition is KY-3411 over Rockcastle CR 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 August 2024.

How much traffic does KY-3411 over Rockcastle CR carry?

About 434 vehicles per day (2021 count).

How long is KY-3411 over Rockcastle CR?

The structure is 108 ft (32.9 m) long with a longest span of 105 ft (32 m) and a deck 30 ft wide.

Who owns KY-3411 over Rockcastle CR?

It is owned by the State Highway Agency.