Is 270 over Little Seneca Creek
FairMontgomery County, Maryland · 1.85 South of Md 121 · Structure no. 100000150040020
- Built
- 1954
- 71 years old
- Condition
- Fair
- inspected September 2024
- Type
- Culvert
- Concrete
- Length
- 42 ft
- Daily traffic
- 98,097
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Is 270 over Little Seneca Creek is a concrete culvert carrying Is 270 over Little Seneca Creek in Montgomery County, Maryland. It was built in 1954, so it is 71 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 98,097 vehicles a day, roughly 8% of them trucks, projected to reach 133,637 by 2029. The structure is 42 ft (12.8 m) long. If it were closed, the detour would be 6.8 mi (11 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 270 over Little Seneca Creek built?
It was built in 1954, making it 71 years old in 2025.
What condition is Is 270 over Little Seneca 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 September 2024.
How much traffic does Is 270 over Little Seneca Creek carry?
About 98,097 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is Is 270 over Little Seneca Creek?
The structure is 42 ft (12.8 m) long with a longest span of 20 ft (6.1 m).
Who owns Is 270 over Little Seneca Creek?
It is owned by the State Highway Agency.