Md 100 over Old Mont. RD & Deep Run
GoodHoward County, Maryland · 0.62 Mile West of Md 103 · Structure no. 100000130145013
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 189 ft
- 1 main span
- Daily traffic
- 82,092
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Md 100 over Old Mont. RD & Deep Run is a steel stringer/multi-beam or girder carrying Md 100 over Old Mont. RD & Deep Run in Howard County, Maryland. It was built in 1998, so it is 27 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 82,092 vehicles a day, roughly 10% of them trucks, projected to reach 44,034 by 2026. The structure is 189 ft (57.6 m) long and 72 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
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. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Md 100 over Old Mont. RD & Deep Run built?
It was built in 1998, making it 27 years old in 2025.
What condition is Md 100 over Old Mont. RD & Deep Run 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 September 2023.
How much traffic does Md 100 over Old Mont. RD & Deep Run carry?
About 82,092 vehicles per day (2009 count), of which roughly 10% are trucks.
How long is Md 100 over Old Mont. RD & Deep Run?
The structure is 189 ft (57.6 m) long with a longest span of 182 ft (55.5 m) and a deck 72 ft wide.
Who owns Md 100 over Old Mont. RD & Deep Run?
It is owned by the State Highway Agency.