US Bridges

US-51 over C/N (sou) Railroad

Fair

Carlisle County, Kentucky · .3 MI S.E. JCT Ky 102 · Structure no. 020B00057N

Built
1986
39 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
182 ft
3 main spans
Daily traffic
2,172
2021 count
Owner
State
State Highway Agency

About this bridge

US-51 over C/N (sou) Railroad is a prestressed concrete continuous stringer/multi-beam or girder carrying US-51 over C/N (sou) Railroad in Carlisle County, Kentucky. It was built in 1986, so it is 39 years old, younger than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,172 vehicles a day, roughly 25% of them trucks, projected to reach 2,172 by 2041. The structure is 182 ft (55.5 m) long and 43 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesUS-51
CrossesC/N (sou) Railroad
Location.3 MI S.E. JCT Ky 102
RouteU.S. Route 51
CountyCarlisle County
StateKentucky
Coordinates36.90389, -89.03528
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating40.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length182 ft (55.5 m)
Longest span61 ft (18.6 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,172 (2021)
Projected traffic2,172 by 2041
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed16.8 mi (27 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 US-51 over C/N (sou) Railroad built?

It was built in 1986, making it 39 years old in 2025.

What condition is US-51 over C/N (sou) Railroad in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2022.

How much traffic does US-51 over C/N (sou) Railroad carry?

About 2,172 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is US-51 over C/N (sou) Railroad?

The structure is 182 ft (55.5 m) long with a longest span of 61 ft (18.6 m) and a deck 43 ft wide.

Who owns US-51 over C/N (sou) Railroad?

It is owned by the State Highway Agency.