Is 495 over Md 185
FairMontgomery County, Maryland · 1.53 Miles West of Md 355 · Structure no. 100000150123010
- Built
- 1964
- 61 years old, rebuilt 1990
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 226 ft
- 4 main spans
- Daily traffic
- 239,310
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Is 495 over Md 185 is a steel stringer/multi-beam or girder carrying Is 495 over Md 185 in Montgomery County, Maryland. It was built in 1964 and reconstructed in 1990, so it is 61 years old, older than the Maryland average of 52.6 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 239,310 vehicles a day, roughly 8% of them trucks, projected to reach 357,075 by 2029. The structure is 226 ft (68.9 m) long and 173 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 495 over Md 185 built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1990.
What condition is Is 495 over Md 185 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 September 2023.
How much traffic does Is 495 over Md 185 carry?
About 239,310 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is Is 495 over Md 185?
The structure is 226 ft (68.9 m) long with a longest span of 67 ft (20.4 m) and a deck 173 ft wide.
Who owns Is 495 over Md 185?
It is owned by the State Highway Agency.