Monocacy Boulevard over Monocacy River
FairFrederick County, Maryland · 0.1 MI South of Gas House · Structure no. 200000F-F-16012
- Built
- 1966
- 59 years old, rebuilt 2019
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 517 ft
- 8 main spans
- Daily traffic
- 9,462
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Monocacy Boulevard over Monocacy River is a steel stringer/multi-beam or girder carrying Monocacy Boulevard over Monocacy River in Frederick County, Maryland. It was built in 1966 and reconstructed in 2019, so it is 59 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 9,462 vehicles a day, roughly 5% of them trucks, projected to reach 12,000 by 2043. The structure is 517 ft (157.6 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Monocacy Boulevard over Monocacy River built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2019.
What condition is Monocacy Boulevard over Monocacy River 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 Monocacy Boulevard over Monocacy River carry?
About 9,462 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is Monocacy Boulevard over Monocacy River?
The structure is 517 ft (157.6 m) long with a longest span of 64 ft (19.5 m) and a deck 36 ft wide.
Who owns Monocacy Boulevard over Monocacy River?
It is owned by the City or Municipal Highway Agency.