I-77 NB over CR 21
PoorKanawha County, West Virginia · 0.99 MI N of CR 28 Sls · Structure no. 00000000020A232
- Built
- 1959
- 66 years old, rebuilt 1986
- Condition
- Poor
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 186 ft
- 1 main span
- Daily traffic
- 14,300
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-77 NB over CR 21 is a steel continuous stringer/multi-beam or girder carrying I-77 NB over CR 21 in Kanawha County, West Virginia. It was built in 1959 and reconstructed in 1986, so it is 66 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 14,300 vehicles a day, roughly 17% of them trucks, projected to reach 22,308 by 2042. The structure is 186 ft (56.6 m) long and 58 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-77 NB over CR 21 built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1986.
What condition is I-77 NB over CR 21 in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.
How much traffic does I-77 NB over CR 21 carry?
About 14,300 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is I-77 NB over CR 21?
The structure is 186 ft (56.6 m) long with a longest span of 90 ft (27.4 m) and a deck 58 ft wide.
Who owns I-77 NB over CR 21?
It is owned by the State Highway Agency.