Md 91 over Middle Run
FairCarroll County, Maryland · 0.02 Mile North of Md 879 · Structure no. 100000060014020
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected December 2024
- Type
- Culvert
- Concrete
- Length
- 25 ft
- Daily traffic
- 10,670
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Md 91 over Middle Run is a concrete culvert carrying Md 91 over Middle Run in Carroll County, Maryland. It was built in 1964, so it is 61 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 6 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 10,670 vehicles a day, roughly 8% of them trucks, projected to reach 12,660 by 2026. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 9.9 mi (16 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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Md 91 over Middle Run built?
It was built in 1964, making it 61 years old in 2025.
What condition is Md 91 over Middle Run 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 December 2024.
How much traffic does Md 91 over Middle Run carry?
About 10,670 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is Md 91 over Middle Run?
The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).
Who owns Md 91 over Middle Run?
It is owned by the State Highway Agency.