Md 17 over Is 70
FairFrederick County, Maryland · 1.2 Mile South of US 40 · Structure no. 100000100136010
- Built
- 1968
- 57 years old, rebuilt 1976
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 334 ft
- 4 main spans
- Daily traffic
- 7,931
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Md 17 over Is 70 is a steel continuous stringer/multi-beam or girder carrying Md 17 over Is 70 in Frederick County, Maryland. It was built in 1968 and reconstructed in 1976, 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 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 7,931 vehicles a day, roughly 8% of them trucks, projected to reach 8,187 by 2026. The structure is 334 ft (101.8 m) long and 76 ft wide. If it were closed, the detour would be 5 mi (8 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Md 17 over Is 70 built?
It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1976.
What condition is Md 17 over Is 70 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 September 2024.
How much traffic does Md 17 over Is 70 carry?
About 7,931 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is Md 17 over Is 70?
The structure is 334 ft (101.8 m) long with a longest span of 98 ft (29.9 m) and a deck 76 ft wide.
Who owns Md 17 over Is 70?
It is owned by the State Highway Agency.