US 1 over Gunpowder Falls
GoodBaltimore County, Maryland · 0.91 M S of Mt Vista Road · Structure no. 100000030003030
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected November 2024
- Type
- Culvert
- Steel
- Length
- 390 ft
- 5 main spans
- Daily traffic
- 3,393
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 1 over Gunpowder Falls is a steel culvert carrying US 1 over Gunpowder Falls in Baltimore County, Maryland. It was built in 1991, so it is 34 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 3,393 vehicles a day, roughly 8% of them trucks, projected to reach 45,703 by 2042. The structure is 390 ft (118.9 m) long and 97 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 1 over Gunpowder Falls built?
It was built in 1991, making it 34 years old in 2025.
What condition is US 1 over Gunpowder Falls 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 November 2024.
How much traffic does US 1 over Gunpowder Falls carry?
About 3,393 vehicles per day (2022 count), of which roughly 8% are trucks.
How long is US 1 over Gunpowder Falls?
The structure is 390 ft (118.9 m) long with a longest span of 28 ft (8.5 m) and a deck 97 ft wide.
Who owns US 1 over Gunpowder Falls?
It is owned by the State Highway Agency.