Md 390 over CSX Transportation
GoodMontgomery County, Maryland · 0.45 MI N of Md 410 · Structure no. 100000150089010
- Built
- 1958
- 67 years old, rebuilt 2001
- Condition
- Good
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 196 ft
- 3 main spans
- Daily traffic
- 35,062
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Md 390 over CSX Transportation is a steel continuous stringer/multi-beam or girder carrying Md 390 over CSX Transportation in Montgomery County, Maryland. It was built in 1958 and reconstructed in 2001, so it is 67 years old, older than the Maryland average of 52.6 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 35,062 vehicles a day, roughly 4% of them trucks, projected to reach 42,064 by 2026. The structure is 196 ft (59.7 m) long and 97 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Md 390 over CSX Transportation built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2001.
What condition is Md 390 over CSX Transportation 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 November 2023.
How much traffic does Md 390 over CSX Transportation carry?
About 35,062 vehicles per day (2009 count), of which roughly 4% are trucks.
How long is Md 390 over CSX Transportation?
The structure is 196 ft (59.7 m) long with a longest span of 103 ft (31.4 m) and a deck 97 ft wide.
Who owns Md 390 over CSX Transportation?
It is owned by the State Highway Agency.