Winter ST over Mousam River
FairYork County, Maine · .2 MI NE 109 on 4A · Structure no. 2961
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 72 ft
- 1 main span
- Daily traffic
- 7,640
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
Winter ST over Mousam River is a steel stringer/multi-beam or girder carrying Winter ST over Mousam River in York County, Maine. It was built in 1975, so it is 50 years old, younger 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 5 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 7,640 vehicles a day, roughly 5% of them trucks, projected to reach 10,696 by 2036. The structure is 72 ft (21.9 m) long and 43 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Winter ST over Mousam River built?
It was built in 1975, making it 50 years old in 2025.
What condition is Winter ST over Mousam 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 December 2023.
How much traffic does Winter ST over Mousam River carry?
About 7,640 vehicles per day (2016 count), of which roughly 5% are trucks.
How long is Winter ST over Mousam River?
The structure is 72 ft (21.9 m) long with a longest span of 67 ft (20.4 m) and a deck 43 ft wide.
Who owns Winter ST over Mousam River?
It is owned by the State Highway Agency.