Is 270 over West Old Baltimore RD
FairMontgomery County, Maryland · 1.28 Miles S of Md 121 · Structure no. 100000150039010
- Built
- 1954
- 71 years old, rebuilt 1998
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 105 ft
- 3 main spans
- Daily traffic
- 98,097
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Is 270 over West Old Baltimore RD is a steel continuous stringer/multi-beam or girder carrying Is 270 over West Old Baltimore RD in Montgomery County, Maryland. It was built in 1954 and reconstructed in 1998, so it is 71 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 98,097 vehicles a day, roughly 8% of them trucks, projected to reach 133,637 by 2029. The structure is 105 ft (32 m) long and 145 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 270 over West Old Baltimore RD built?
It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1998.
What condition is Is 270 over West Old Baltimore RD 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 March 2024.
How much traffic does Is 270 over West Old Baltimore RD carry?
About 98,097 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is Is 270 over West Old Baltimore RD?
The structure is 105 ft (32 m) long with a longest span of 38 ft (11.6 m) and a deck 145 ft wide.
Who owns Is 270 over West Old Baltimore RD?
It is owned by the State Highway Agency.