US 40 Wbr over Rock Creek
FairFrederick County, Maryland · 0.01 M E of Rock Creek DR · Structure no. 100000100034010
- Built
- 1936
- 89 years old
- Condition
- Fair
- inspected September 2024
- Type
- Tee Beam
- Concrete
- Length
- 42 ft
- 1 main span
- Daily traffic
- 20,782
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
US 40 Wbr over Rock Creek is a concrete tee beam carrying US 40 Wbr over Rock Creek in Frederick County, Maryland. It was built in 1936, so it is 89 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 5 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 20,782 vehicles a day, roughly 8% of them trucks, projected to reach 26,142 by 2029. The structure is 42 ft (12.8 m) long and 44 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 40 Wbr over Rock Creek built?
It was built in 1936, making it 89 years old in 2025.
What condition is US 40 Wbr 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 September 2024.
How much traffic does US 40 Wbr over Rock Creek carry?
About 20,782 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is US 40 Wbr over Rock Creek?
The structure is 42 ft (12.8 m) long with a longest span of 36 ft (11 m) and a deck 44 ft wide.
Who owns US 40 Wbr over Rock Creek?
It is owned by the State Highway Agency.