US Bridges

US-79 over CSX Railroad

Good

Todd County, Kentucky · 0.05 M N of JCT KY-346 · Structure no. 110B00047N

Built
2023
2 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
123 ft
1 main span
Daily traffic
4,316
2021 count
Owner
State
State Highway Agency

About this bridge

US-79 over CSX Railroad is a prestressed concrete stringer/multi-beam or girder carrying US-79 over CSX Railroad in Todd County, Kentucky. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,316 vehicles a day, roughly 22% of them trucks, projected to reach 4,316 by 2041. The structure is 123 ft (37.5 m) long and 43 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

CarriesUS-79
CrossesCSX Railroad
Location0.05 M N of JCT KY-346
RouteU.S. Route 79
Coordinates36.65778, -87.175
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating71.4 US tons
Inventory rating55 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length123 ft (37.5 m)
Longest span120 ft (36.6 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,316 (2021)
Projected traffic4,316 by 2041
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed4.3 mi (7 km)
TollOn a free road
National Highway SystemYes

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 US-79 over CSX Railroad built?

It was built in 2023, making it 2 years old in 2025.

What condition is US-79 over CSX Railroad 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 US-79 over CSX Railroad carry?

About 4,316 vehicles per day (2021 count), of which roughly 22% are trucks.

How long is US-79 over CSX Railroad?

The structure is 123 ft (37.5 m) long with a longest span of 120 ft (36.6 m) and a deck 43 ft wide.

Who owns US-79 over CSX Railroad?

It is owned by the State Highway Agency.