Md 4 WB over Patuxent River
FairPrince George's County, Maryland · On Anne Arundel CO Line · Structure no. 100000160011010
- Built
- 1991
- 34 years old
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 256 ft
- 3 main spans
- Daily traffic
- 49,641
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Md 4 WB over Patuxent River is a steel continuous stringer/multi-beam or girder carrying Md 4 WB over Patuxent River in Prince George's County, Maryland. It was built in 1991, so it is 34 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 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 49,641 vehicles a day, roughly 6% of them trucks, projected to reach 67,341 by 2029. The structure is 256 ft (78 m) long and 47 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Md 4 WB over Patuxent River built?
It was built in 1991, making it 34 years old in 2025.
What condition is Md 4 WB 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 October 2023.
How much traffic does Md 4 WB over Patuxent River carry?
About 49,641 vehicles per day (2009 count), of which roughly 6% are trucks.
How long is Md 4 WB over Patuxent River?
The structure is 256 ft (78 m) long with a longest span of 98 ft (29.9 m) and a deck 47 ft wide.
Who owns Md 4 WB over Patuxent River?
It is owned by the State Highway Agency.