US 1 over Md 100
GoodHoward County, Maryland · 0.51 Mile North of Md 103 · Structure no. 100000130118010
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 183 ft
- 2 main spans
- Daily traffic
- 35,932
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
US 1 over Md 100 is a steel continuous stringer/multi-beam or girder carrying US 1 over Md 100 in Howard County, Maryland. It was built in 1994, so it is 31 years old, younger than the Maryland average of 52.6 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 35,932 vehicles a day, roughly 8% of them trucks, projected to reach 40,588 by 2026. The structure is 183 ft (55.8 m) long and 104 ft wide.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 1 over Md 100 built?
It was built in 1994, making it 31 years old in 2025.
What condition is US 1 over Md 100 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.
How much traffic does US 1 over Md 100 carry?
About 35,932 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is US 1 over Md 100?
The structure is 183 ft (55.8 m) long with a longest span of 93 ft (28.3 m) and a deck 104 ft wide.
Who owns US 1 over Md 100?
It is owned by the State Highway Agency.