Main ST over Saint George River
PoorKnox County, Maine · 0.3 MI W JCT RTE 131 · Structure no. 3612
- Built
- 1939
- 86 years old
- Condition
- Poor
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 215 ft
- 3 main spans
- Daily traffic
- 846
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
Main ST over Saint George River is a steel continuous stringer/multi-beam or girder carrying Main ST over Saint George River in Knox County, Maine. It was built in 1939, so it is 86 years old, older 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 846 vehicles a day, roughly 5% of them trucks, projected to reach 1,354 by 2036. The structure is 215 ft (65.5 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 Main ST over Saint George River built?
It was built in 1939, making it 86 years old in 2025.
What condition is Main ST over Saint George River 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 September 2023.
How much traffic does Main ST over Saint George River carry?
About 846 vehicles per day (2016 count), of which roughly 5% are trucks.
How long is Main ST over Saint George River?
The structure is 215 ft (65.5 m) long with a longest span of 85 ft (25.9 m) and a deck 39 ft wide.
Who owns Main ST over Saint George River?
It is owned by the State Highway Agency.