Bay ST over Sebasticook River
FairKennebec County, Maine · 100 Ft N JCT RTE 137 · Structure no. 2960
- Built
- 1960
- 65 years old, rebuilt 2005
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 371 ft
- 5 main spans
- Daily traffic
- 16,604
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
Bay ST over Sebasticook River is a steel continuous stringer/multi-beam or girder carrying Bay ST over Sebasticook River in Kennebec County, Maine. It was built in 1960 and reconstructed in 2005, so it is 65 years old, older than the Maine average of 53.7 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 16,604 vehicles a day, roughly 5% of them trucks, projected to reach 23,246 by 2036. The structure is 371 ft (113.1 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Bay ST over Sebasticook River built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2005.
What condition is Bay ST over Sebasticook River 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 June 2024.
How much traffic does Bay ST over Sebasticook River carry?
About 16,604 vehicles per day (2016 count), of which roughly 5% are trucks.
How long is Bay ST over Sebasticook River?
The structure is 371 ft (113.1 m) long with a longest span of 95 ft (29 m) and a deck 64 ft wide.
Who owns Bay ST over Sebasticook River?
It is owned by the State Highway Agency.