Knolls Parkway over Pleasant Branch
GoodFrederick County, Maryland · At Md Rt. 75 Intersection · Structure no. 200000F-0725020
- Built
- 1992
- 33 years old
- Condition
- Good
- inspected May 2023
- Type
- Culvert
- Concrete
- Length
- 31 ft
- 4 main spans
- Daily traffic
- 1,000
- 2009 count
- Owner
- County
- County Highway Agency
About this bridge
Knolls Parkway over Pleasant Branch is a concrete culvert carrying Knolls Parkway over Pleasant Branch in Frederick County, Maryland. It was built in 1992, so it is 33 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 1,000 vehicles a day, roughly 5% of them trucks, projected to reach 1,200 by 2032. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 98.8 mi (159 km).
Location
No coordinates are recorded for this structure.
Condition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Knolls Parkway over Pleasant Branch built?
It was built in 1992, making it 33 years old in 2025.
What condition is Knolls Parkway over Pleasant Branch 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 May 2023.
How much traffic does Knolls Parkway over Pleasant Branch carry?
About 1,000 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is Knolls Parkway over Pleasant Branch?
The structure is 31 ft (9.4 m) long with a longest span of 7 ft (2.1 m).
Who owns Knolls Parkway over Pleasant Branch?
It is owned by the County Highway Agency.