I85N.BUS US29 70 over Southern Railway
PoorDavidson County, North Carolina · 0.5 Mi. N. Jct. SR1770 · Structure no. 000000000570164
- Built
- 1950
- 75 years old
- Condition
- Poor
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 185 ft
- 3 main spans
- Daily traffic
- 11,000
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I85N.BUS US29 70 over Southern Railway is a steel stringer/multi-beam or girder carrying I85N.BUS US29 70 over Southern Railway in Davidson County, North Carolina. It was built in 1950, so it is 75 years old, older than the North Carolina average of 38.7 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 11,000 vehicles a day, roughly 12% of them trucks, projected to reach 23,000 by 2040. The structure is 185 ft (56.3 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I85N.BUS US29 70 over Southern Railway built?
It was built in 1950, making it 75 years old in 2025.
What condition is I85N.BUS US29 70 over Southern Railway 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 June 2023.
How much traffic does I85N.BUS US29 70 over Southern Railway carry?
About 11,000 vehicles per day (2021 count), of which roughly 12% are trucks.
How long is I85N.BUS US29 70 over Southern Railway?
The structure is 185 ft (56.3 m) long with a longest span of 64 ft (19.5 m) and a deck 35 ft wide.
Who owns I85N.BUS US29 70 over Southern Railway?
It is owned by the State Highway Agency.