Md 77 over Double Pipe Creek
GoodFrederick County, Maryland · On Carroll CO Line · Structure no. 100000100056010
- Built
- 1989
- 36 years old
- Condition
- Good
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 215 ft
- 3 main spans
- Daily traffic
- 841
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Md 77 over Double Pipe Creek is a steel continuous stringer/multi-beam or girder carrying Md 77 over Double Pipe Creek in Frederick County, Maryland. It was built in 1989, so it is 36 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 841 vehicles a day, roughly 8% of them trucks, projected to reach 1,120 by 2026. The structure is 215 ft (65.5 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).
Location
No coordinates are recorded for this structure.
Condition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Md 77 over Double Pipe Creek built?
It was built in 1989, making it 36 years old in 2025.
What condition is Md 77 over Double Pipe 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 February 2024.
How much traffic does Md 77 over Double Pipe Creek carry?
About 841 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is Md 77 over Double Pipe Creek?
The structure is 215 ft (65.5 m) long with a longest span of 70 ft (21.3 m) and a deck 33 ft wide.
Who owns Md 77 over Double Pipe Creek?
It is owned by the State Highway Agency.