US 40 over Little Patuxent River
FairHoward County, Maryland · 0.49 M W of Dogwood Drive · Structure no. 100000130032040
- Built
- 1939
- 86 years old
- Condition
- Fair
- inspected July 2024
- Type
- Frame
- Concrete
- Length
- 41 ft
- 1 main span
- Daily traffic
- 50,111
- 2013 count
- Owner
- State
- State Highway Agency
About this bridge
US 40 over Little Patuxent River is a concrete frame carrying US 40 over Little Patuxent River in Howard County, Maryland. It was built in 1939, so it is 86 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 50,111 vehicles a day, roughly 8% of them trucks, projected to reach 54,988 by 2026. The structure is 41 ft (12.6 m) long and 95 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 40 over Little Patuxent River built?
It was built in 1939, making it 86 years old in 2025.
What condition is US 40 over Little Patuxent River 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 July 2024.
How much traffic does US 40 over Little Patuxent River carry?
About 50,111 vehicles per day (2013 count), of which roughly 8% are trucks.
How long is US 40 over Little Patuxent River?
The structure is 41 ft (12.6 m) long with a longest span of 36 ft (11 m) and a deck 95 ft wide.
Who owns US 40 over Little Patuxent River?
It is owned by the State Highway Agency.