US 40 over Branch of Rock Creek
FairFrederick County, Maryland · .036 Mile East of US 40AL · Structure no. 100000100035020
- Built
- 1947
- 78 years old, rebuilt 1966
- Condition
- Fair
- inspected April 2023
- Type
- Culvert
- Concrete
- Length
- 43 ft
- Daily traffic
- 47,332
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
US 40 over Branch of Rock Creek is a concrete culvert carrying US 40 over Branch of Rock Creek in Frederick County, Maryland. It was built in 1947 and reconstructed in 1966, so it is 78 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 47,332 vehicles a day, roughly 8% of them trucks, projected to reach 55,761 by 2026. The structure is 43 ft (13.2 m) long. 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 40 over Branch of Rock Creek built?
It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1966.
What condition is US 40 over Branch of 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 April 2023.
How much traffic does US 40 over Branch of Rock Creek carry?
About 47,332 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is US 40 over Branch of Rock Creek?
The structure is 43 ft (13.2 m) long with a longest span of 10 ft (3 m).
Who owns US 40 over Branch of Rock Creek?
It is owned by the State Highway Agency.