US Bridges

KY-3 Rmp to KY-645 over KY-645

Good

Martin County, Kentucky · @ JCT Ky 3/645 · Structure no. 080B00043N

Built
2009
16 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
734 ft
3 main spans
Daily traffic
3,054
2021 count
Owner
State
State Highway Agency

About this bridge

KY-3 Rmp to KY-645 over KY-645 is a steel continuous stringer/multi-beam or girder carrying KY-3 Rmp to KY-645 over KY-645 in Martin County, Kentucky. It was built in 2009, so it is 16 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 3,054 vehicles a day, roughly 9% of them trucks, projected to reach 3,054 by 2041. The structure is 734 ft (223.8 m) long and 28 ft wide.

Location

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CarriesKY-3 Rmp to KY-645
CrossesKY-645
Location@ JCT Ky 3/645
RouteState Highway 3
CountyMartin County
StateKentucky
Coordinates37.84889, -82.54167
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.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.7 US tons
Inventory rating38.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 25 or greater
Structure length734 ft (223.8 m)
Longest span225 ft (68.6 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,054 (2021)
Projected traffic3,054 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was KY-3 Rmp to KY-645 over KY-645 built?

It was built in 2009, making it 16 years old in 2025.

What condition is KY-3 Rmp to KY-645 over KY-645 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-3 Rmp to KY-645 over KY-645 carry?

About 3,054 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is KY-3 Rmp to KY-645 over KY-645?

The structure is 734 ft (223.8 m) long with a longest span of 225 ft (68.6 m) and a deck 28 ft wide.

Who owns KY-3 Rmp to KY-645 over KY-645?

It is owned by the State Highway Agency.