US 1 SB over Patuxent River
FairPrince George's County, Maryland · On Howard CO Line · Structure no. 100000160002010
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 194 ft
- 3 main spans
- Daily traffic
- 16,752
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
US 1 SB over Patuxent River is a steel continuous stringer/multi-beam or girder carrying US 1 SB over Patuxent River in Prince George's County, Maryland. It was built in 1970, so it is 55 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 16,752 vehicles a day, roughly 8% of them trucks, projected to reach 9,230 by 2026. The structure is 194 ft (59.1 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 1 SB over Patuxent River built?
It was built in 1970, making it 55 years old in 2025.
What condition is US 1 SB over 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 January 2025.
How much traffic does US 1 SB over Patuxent River carry?
About 16,752 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is US 1 SB over Patuxent River?
The structure is 194 ft (59.1 m) long with a longest span of 73 ft (22.3 m) and a deck 56 ft wide.
Who owns US 1 SB over Patuxent River?
It is owned by the State Highway Agency.