US Bridges

KY-645RMP to KY-40 over Coldwater Fork

Good

Martin County, Kentucky · At JCT Ky 908 · Structure no. 080B00042N

Built
2007
18 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
222 ft
3 main spans
Daily traffic
3,841
2019 count
Owner
State
State Highway Agency

About this bridge

KY-645RMP to KY-40 over Coldwater Fork is a prestressed concrete stringer/multi-beam or girder carrying KY-645RMP to KY-40 over Coldwater Fork in Martin County, Kentucky. It was built in 2007, so it is 18 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 3,841 vehicles a day, roughly 9% of them trucks, projected to reach 3,841 by 2039. The structure is 222 ft (67.7 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesKY-645RMP to KY-40
CrossesColdwater Fork
LocationAt JCT Ky 908
RouteState Highway 645
CountyMartin County
StateKentucky
Coordinates37.84833, -82.53917
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating110 US tons
Inventory rating76.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length222 ft (67.7 m)
Longest span80 ft (24.5 m)
Deck width28 ft (8.4 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,841 (2019)
Projected traffic3,841 by 2039
Trucks9%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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-645RMP to KY-40 over Coldwater Fork built?

It was built in 2007, making it 18 years old in 2025.

What condition is KY-645RMP to KY-40 over Coldwater Fork 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 2023.

How much traffic does KY-645RMP to KY-40 over Coldwater Fork carry?

About 3,841 vehicles per day (2019 count), of which roughly 9% are trucks.

How long is KY-645RMP to KY-40 over Coldwater Fork?

The structure is 222 ft (67.7 m) long with a longest span of 80 ft (24.5 m) and a deck 28 ft wide.

Who owns KY-645RMP to KY-40 over Coldwater Fork?

It is owned by the State Highway Agency.