Observation Drive over Little Seneca Creek
GoodMontgomery County, Maryland · 0.3 Miles East of I-270 · Structure no. 200000M-0410010
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected December 2023
- Type
- Culvert
- Steel
- Length
- 39 ft
- Daily traffic
- 11,584
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Observation Drive over Little Seneca Creek is a steel culvert carrying Observation Drive over Little Seneca Creek in Montgomery County, Maryland. It was built in 1994, so it is 31 years old, younger 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 11,584 vehicles a day, roughly 1% of them trucks, projected to reach 13,270 by 2044. The structure is 39 ft (12 m) long. 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Observation Drive over Little Seneca Creek built?
It was built in 1994, making it 31 years old in 2025.
What condition is Observation Drive over Little Seneca Creek 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 December 2023.
How much traffic does Observation Drive over Little Seneca Creek carry?
About 11,584 vehicles per day (2022 count), of which roughly 1% are trucks.
How long is Observation Drive over Little Seneca Creek?
The structure is 39 ft (12 m) long with a longest span of 14 ft (4.3 m).
Who owns Observation Drive over Little Seneca Creek?
It is owned by the County Highway Agency.