Columbia Road over Red Hill Branch
FairHoward County, Maryland · 0.4 MI N of Md RTE 108 · Structure no. 200000HO0146030
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected May 2023
- Type
- Culvert
- Aluminum, Wrought Iron, or Cast Iron
- Length
- 79 ft
- 3 main spans
- Daily traffic
- 4,946
- 1999 count
- Owner
- County
- County Highway Agency
About this bridge
Columbia Road over Red Hill Branch is a aluminum, wrought iron, or cast iron culvert carrying Columbia Road over Red Hill Branch in Howard County, Maryland. It was built in 1986, so it is 39 years old, younger 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 4,946 vehicles a day, roughly 4% of them trucks, projected to reach 5,125 by 2015. The structure is 79 ft (24.2 m) long. If it were closed, the detour would be 5 mi (8 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 | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Columbia Road over Red Hill Branch built?
It was built in 1986, making it 39 years old in 2025.
What condition is Columbia Road over Red Hill Branch 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 May 2023.
How much traffic does Columbia Road over Red Hill Branch carry?
About 4,946 vehicles per day (1999 count), of which roughly 4% are trucks.
How long is Columbia Road over Red Hill Branch?
The structure is 79 ft (24.2 m) long with a longest span of 19 ft (5.8 m).
Who owns Columbia Road over Red Hill Branch?
It is owned by the County Highway Agency.