River ST over Mill Yard
PoorOxford County, Maine · 0.1 MI N Portland ST · Structure no. 5931
- Built
- 1913
- 112 years old, rebuilt 1964
- Condition
- Poor
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 353 ft
- 7 main spans
- Daily traffic
- 310
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
River ST over Mill Yard is a steel stringer/multi-beam or girder carrying River ST over Mill Yard in Oxford County, Maine. It was built in 1913 and reconstructed in 1964, so it is 112 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 310 vehicles a day, roughly 5% of them trucks, projected to reach 496 by 2036. The structure is 353 ft (107.5 m) long and 34 ft wide. If it were closed, the detour would be 100 mi (161 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was River ST over Mill Yard built?
It was built in 1913, making it 112 years old in 2025. It was reconstructed in 1964.
What condition is River ST over Mill Yard 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 River ST over Mill Yard carry?
About 310 vehicles per day (2016 count), of which roughly 5% are trucks.
How long is River ST over Mill Yard?
The structure is 353 ft (107.5 m) long with a longest span of 50 ft (15.2 m) and a deck 34 ft wide.
Who owns River ST over Mill Yard?
It is owned by the State Highway Agency.