I-77 SB over Routes 19 and 21
FairMercer County, West Virginia · 0.01 MI N from Rt 19 · Structure no. 00000000028A210
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 301 ft
- 1 main span
- Daily traffic
- 30,659
- 2022 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
I-77 SB over Routes 19 and 21 is a steel continuous stringer/multi-beam or girder carrying I-77 SB over Routes 19 and 21 in Mercer County, West Virginia. It was built in 1977, so it is 48 years old, older than the West Virginia average of 44.7 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 30,659 vehicles a day, roughly 23% of them trucks, projected to reach 48,855 by 2041. The structure is 301 ft (91.7 m) long and 45 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-77 SB over Routes 19 and 21 built?
It was built in 1977, making it 48 years old in 2025.
What condition is I-77 SB over Routes 19 and 21 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 May 2024.
How much traffic does I-77 SB over Routes 19 and 21 carry?
About 30,659 vehicles per day (2022 count), of which roughly 23% are trucks.
How long is I-77 SB over Routes 19 and 21?
The structure is 301 ft (91.7 m) long with a longest span of 106 ft (32.3 m) and a deck 45 ft wide.
Who owns I-77 SB over Routes 19 and 21?
It is owned by the State Toll Authority.