Md 509 over Governor Run
GoodCalvert County, Maryland · 0.79 MI E of Md 765 · Structure no. 100000040020010
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected July 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 35 ft
- 1 main span
- Daily traffic
- 791
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Md 509 over Governor Run is a prestressed concrete slab carrying Md 509 over Governor Run in Calvert County, Maryland. It was built in 2002, so it is 23 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 791 vehicles a day, roughly 1% of them trucks, projected to reach 1,004 by 2026. The structure is 35 ft (10.7 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Md 509 over Governor Run built?
It was built in 2002, making it 23 years old in 2025.
What condition is Md 509 over Governor 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 July 2023.
How much traffic does Md 509 over Governor Run carry?
About 791 vehicles per day (2009 count), of which roughly 1% are trucks.
How long is Md 509 over Governor Run?
The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 31 ft wide.
Who owns Md 509 over Governor Run?
It is owned by the State Highway Agency.