Carroll Island Roa over Saltpeter Creek
FairClosed to trafficBaltimore County, Maryland · 2.4 MI E Eastern Ave · Structure no. 200000B-0050010
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected December 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 240 ft
- 4 main spans
- Daily traffic
- 10
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Carroll Island Roa over Saltpeter Creek is a prestressed concrete box beam or girders - multiple carrying Carroll Island Roa over Saltpeter Creek in Baltimore County, Maryland. It was built in 1960, so it is 65 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. Its operating status is: closed to all traffic.
It carries about 10 vehicles a day, roughly 5% of them trucks, projected to reach 12 by 2041. The structure is 240 ft (73.2 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
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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Carroll Island Roa over Saltpeter Creek built?
It was built in 1960, making it 65 years old in 2025.
What condition is Carroll Island Roa over Saltpeter Creek 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 2023.
How much traffic does Carroll Island Roa over Saltpeter Creek carry?
About 10 vehicles per day (2021 count), of which roughly 5% are trucks.
How long is Carroll Island Roa over Saltpeter Creek?
The structure is 240 ft (73.2 m) long with a longest span of 60 ft (18.3 m) and a deck 31 ft wide.
Who owns Carroll Island Roa over Saltpeter Creek?
It is owned by the County Highway Agency.