Md 408 over Md 4
FairAnne Arundel County, Maryland · 0.15 Mile West of Md 794 · Structure no. 100000020220010
- Built
- 1993
- 32 years old
- Condition
- Fair
- inspected March 2024
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 220 ft
- 2 main spans
- Daily traffic
- 8,412
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Md 408 over Md 4 is a steel continuous girder and floorbeam system carrying Md 408 over Md 4 in Anne Arundel County, Maryland. It was built in 1993, so it is 32 years old, younger 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 8,412 vehicles a day, roughly 8% of them trucks, projected to reach 10,333 by 2026. The structure is 220 ft (67.1 m) long and 55 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Md 408 over Md 4 built?
It was built in 1993, making it 32 years old in 2025.
What condition is Md 408 over Md 4 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 March 2024.
How much traffic does Md 408 over Md 4 carry?
About 8,412 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is Md 408 over Md 4?
The structure is 220 ft (67.1 m) long with a longest span of 110 ft (33.5 m) and a deck 55 ft wide.
Who owns Md 408 over Md 4?
It is owned by the State Highway Agency.