SR1780 over Black River
FairHarnett County, North Carolina · 0.1 MI W JCT SR1790 · Structure no. 000000000850106
- Built
- 2005
- 20 years old
- Condition
- Fair
- inspected February 2025
- Type
- Slab
- Prestressed Concrete
- Length
- 180 ft
- 4 main spans
- Daily traffic
- 4,300
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
SR1780 over Black River is a prestressed concrete slab carrying SR1780 over Black River in Harnett County, North Carolina. It was built in 2005, so it is 20 years old, younger than the North Carolina average of 38.7 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 4,300 vehicles a day, roughly 7% of them trucks, projected to reach 8,600 by 2040. The structure is 180 ft (54.8 m) long and 36 ft wide. If it were closed, the detour would be 6.8 mi (11 km).
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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR1780 over Black River built?
It was built in 2005, making it 20 years old in 2025.
What condition is SR1780 over Black River 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 February 2025.
How much traffic does SR1780 over Black River carry?
About 4,300 vehicles per day (2018 count), of which roughly 7% are trucks.
How long is SR1780 over Black River?
The structure is 180 ft (54.8 m) long with a longest span of 49 ft (14.9 m) and a deck 36 ft wide.
Who owns SR1780 over Black River?
It is owned by the State Highway Agency.