Is 495 Ramp E(10) over Cabin John Creek
FairMontgomery County, Maryland · 0.12 MI W of Is 495X · Structure no. 100000150107010
- Built
- 1964
- 61 years old, rebuilt 1991
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 294 ft
- 4 main spans
- Daily traffic
- 13,610
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Is 495 Ramp E(10) over Cabin John Creek is a steel stringer/multi-beam or girder carrying Is 495 Ramp E(10) over Cabin John Creek in Montgomery County, Maryland. It was built in 1964 and reconstructed in 1991, 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 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 13,610 vehicles a day, roughly 8% of them trucks, projected to reach 18,806 by 2044. The structure is 294 ft (89.6 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 495 Ramp E(10) over Cabin John Creek built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1991.
What condition is Is 495 Ramp E(10) over Cabin John Creek 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 June 2024.
How much traffic does Is 495 Ramp E(10) over Cabin John Creek carry?
About 13,610 vehicles per day (2024 count), of which roughly 8% are trucks.
How long is Is 495 Ramp E(10) over Cabin John Creek?
The structure is 294 ft (89.6 m) long with a longest span of 77 ft (23.5 m) and a deck 29 ft wide.
Who owns Is 495 Ramp E(10) over Cabin John Creek?
It is owned by the State Highway Agency.