American Thread RD over Unnamed Brook
PoorPenobscot County, Maine · 4.3 Miles West Highway 11 · Structure no. 1709034P0000000
- Built
- 2000
- 25 years old
- Condition
- Poor
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 25 ft
- 1 main span
- Daily traffic
- 20
- 2024 count
- Owner
- Federal
- National Park Service
About this bridge
American Thread RD over Unnamed Brook is a steel stringer/multi-beam or girder carrying American Thread RD over Unnamed Brook in Penobscot County, Maine. It was built in 2000, so it is 25 years old, younger than the Maine average of 53.7 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, posting recommended but not legally implemented.
It carries about 20 vehicles a day, roughly 2% of them trucks, projected to reach 30 by 2044. The structure is 25 ft (7.7 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 American Thread RD over Unnamed Brook built?
It was built in 2000, making it 25 years old in 2025.
What condition is American Thread RD over Unnamed Brook in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.
How much traffic does American Thread RD over Unnamed Brook carry?
About 20 vehicles per day (2024 count), of which roughly 2% are trucks.
How long is American Thread RD over Unnamed Brook?
The structure is 25 ft (7.7 m) long with a longest span of 24 ft (7.4 m) and a deck 16 ft wide.
Who owns American Thread RD over Unnamed Brook?
It is owned by the National Park Service.