BIA RTE 1531 over Mattamiscontis Stream
PoorPenobscot County, Maine · 4.15 KM NW of I-95 Interc · Structure no. 0000S50018B0041
- Built
- 2004
- 21 years old
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 39 ft
- 1 main span
- Daily traffic
- 15
- 2024 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
BIA RTE 1531 over Mattamiscontis Stream is a steel stringer/multi-beam or girder carrying BIA RTE 1531 over Mattamiscontis Stream in Penobscot County, Maine. It was built in 2004, so it is 21 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.
It carries about 15 vehicles a day, roughly 50% of them trucks, projected to reach 17 by 2038. The structure is 39 ft (12 m) long and 16 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 BIA RTE 1531 over Mattamiscontis Stream built?
It was built in 2004, making it 21 years old in 2025.
What condition is BIA RTE 1531 over Mattamiscontis Stream 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 July 2024.
How much traffic does BIA RTE 1531 over Mattamiscontis Stream carry?
About 15 vehicles per day (2024 count), of which roughly 50% are trucks.
How long is BIA RTE 1531 over Mattamiscontis Stream?
The structure is 39 ft (12 m) long with a longest span of 38 ft (11.5 m) and a deck 16 ft wide.
Who owns BIA RTE 1531 over Mattamiscontis Stream?
It is owned by the Bureau of Indian Affairs.