Md 185 over Rock Creek
FairMontgomery County, Maryland · 0.13 Mile North of Is 495 · Structure no. 100000150030010
- Built
- 1957
- 68 years old, rebuilt 1986
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 175 ft
- 3 main spans
- Daily traffic
- 40,845
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Md 185 over Rock Creek is a steel stringer/multi-beam or girder carrying Md 185 over Rock Creek in Montgomery County, Maryland. It was built in 1957 and reconstructed in 1986, so it is 68 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 40,845 vehicles a day, roughly 8% of them trucks, projected to reach 49,838 by 2042. The structure is 175 ft (53.3 m) long and 100 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Md 185 over Rock Creek built?
It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1986.
What condition is Md 185 over Rock 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 October 2024.
How much traffic does Md 185 over Rock Creek carry?
About 40,845 vehicles per day (2022 count), of which roughly 8% are trucks.
How long is Md 185 over Rock Creek?
The structure is 175 ft (53.3 m) long with a longest span of 65 ft (19.8 m) and a deck 100 ft wide.
Who owns Md 185 over Rock Creek?
It is owned by the State Highway Agency.