SR1978 over NC147 Ext.
GoodDurham County, North Carolina · .22 Mi. W. JCT SR1999 · Structure no. 000000000630589
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 156 ft
- 2 main spans
- Daily traffic
- 9,100
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
SR1978 over NC147 Ext. is a prestressed concrete continuous stringer/multi-beam or girder carrying SR1978 over NC147 Ext. in Durham County, North Carolina. It was built in 2011, so it is 14 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 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 9,100 vehicles a day, roughly 7% of them trucks, projected to reach 18,200 by 2040. The structure is 156 ft (47.5 m) long and 98 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR1978 over NC147 Ext. built?
It was built in 2011, making it 14 years old in 2025.
What condition is SR1978 over NC147 Ext. 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 September 2023.
How much traffic does SR1978 over NC147 Ext. carry?
About 9,100 vehicles per day (2021 count), of which roughly 7% are trucks.
How long is SR1978 over NC147 Ext.?
The structure is 156 ft (47.5 m) long with a longest span of 75 ft (22.8 m) and a deck 98 ft wide.
Who owns SR1978 over NC147 Ext.?
It is owned by the State Highway Agency.