Mercer RD over Sandy River
FairFranklin County, Maine · 4 MI E Townline · Structure no. 5724
- Built
- 1958
- 67 years old, rebuilt 2009
- Condition
- Fair
- inspected October 2023
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 461 ft
- 3 main spans
- Daily traffic
- 8,124
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
Mercer RD over Sandy River is a steel continuous girder and floorbeam system carrying Mercer RD over Sandy River in Franklin County, Maine. It was built in 1958 and reconstructed in 2009, so it is 67 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 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 8,124 vehicles a day, roughly 5% of them trucks, projected to reach 11,374 by 2036. The structure is 461 ft (140.5 m) long and 39 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Mercer RD over Sandy River built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2009.
What condition is Mercer RD over Sandy 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 October 2023.
How much traffic does Mercer RD over Sandy River carry?
About 8,124 vehicles per day (2016 count), of which roughly 5% are trucks.
How long is Mercer RD over Sandy River?
The structure is 461 ft (140.5 m) long with a longest span of 132 ft (40.2 m) and a deck 39 ft wide.
Who owns Mercer RD over Sandy River?
It is owned by the State Highway Agency.