Is 70 WB over Antietam Creek
FairWashington County, Maryland · 0.57 Mile West of US 40AL · Structure no. 100000210120014
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 239 ft
- 3 main spans
- Daily traffic
- 62,740
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Is 70 WB over Antietam Creek is a steel continuous stringer/multi-beam or girder carrying Is 70 WB over Antietam Creek in Washington County, Maryland. It was built in 1968, so it is 57 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 62,740 vehicles a day, roughly 8% of them trucks, projected to reach 42,488 by 2026. The structure is 239 ft (72.8 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
No coordinates are recorded for this structure.
Condition 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 70 WB over Antietam Creek built?
It was built in 1968, making it 57 years old in 2025.
What condition is Is 70 WB over Antietam 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 April 2024.
How much traffic does Is 70 WB over Antietam Creek carry?
About 62,740 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is Is 70 WB over Antietam Creek?
The structure is 239 ft (72.8 m) long with a longest span of 90 ft (27.4 m) and a deck 42 ft wide.
Who owns Is 70 WB over Antietam Creek?
It is owned by the State Highway Agency.