US-0421 over Martins Fk Cumberland R
GoodHarlan County, Kentucky · 7.7 MI N of Va.State Line · Structure no. 048B00186N
- Built
- 2004
- 21 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 563 ft
- 5 main spans
- Daily traffic
- 2,750
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US-0421 over Martins Fk Cumberland R is a prestressed concrete continuous stringer/multi-beam or girder carrying US-0421 over Martins Fk Cumberland R in Harlan County, Kentucky. It was built in 2004, so it is 21 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 2,750 vehicles a day, roughly 11% of them trucks, projected to reach 2,750 by 2042. The structure is 563 ft (171.7 m) long and 51 ft wide. If it were closed, the detour would be 55.3 mi (89 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-0421 over Martins Fk Cumberland R built?
It was built in 2004, making it 21 years old in 2025.
What condition is US-0421 over Martins Fk Cumberland R 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 June 2023.
How much traffic does US-0421 over Martins Fk Cumberland R carry?
About 2,750 vehicles per day (2022 count), of which roughly 11% are trucks.
How long is US-0421 over Martins Fk Cumberland R?
The structure is 563 ft (171.7 m) long with a longest span of 125 ft (38 m) and a deck 51 ft wide.
Who owns US-0421 over Martins Fk Cumberland R?
It is owned by the State Highway Agency.