HWY Plm Isln Tpk over Water Plum Island River
PoorEssex County, Massachusetts · 0.4 MI W of Sunset DR · Structure no. N100112Y6DOTNBI
- Built
- 1973
- 52 years old
- Condition
- Poor
- inspected September 2024
- Type
- Movable - Bascule
- Steel
- Length
- 135 ft
- 1 main span
- Daily traffic
- 9,172
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
HWY Plm Isln Tpk over Water Plum Island River is a steel movable - bascule carrying HWY Plm Isln Tpk over Water Plum Island River in Essex County, Massachusetts. It was built in 1973, so it is 52 years old, younger than the Massachusetts average of 63.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 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. Its operating status is: open, would be posted or closed except for temporary shoring.
It carries about 9,172 vehicles a day, roughly 3% of them trucks, projected to reach 14,687 by 2031. The structure is 135 ft (41.1 m) long and 38 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was HWY Plm Isln Tpk over Water Plum Island River built?
It was built in 1973, making it 52 years old in 2025.
What condition is HWY Plm Isln Tpk over Water Plum Island 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 2024.
How much traffic does HWY Plm Isln Tpk over Water Plum Island River carry?
About 9,172 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is HWY Plm Isln Tpk over Water Plum Island River?
The structure is 135 ft (41.1 m) long with a longest span of 95 ft (29 m) and a deck 38 ft wide.
Who owns HWY Plm Isln Tpk over Water Plum Island River?
It is owned by the State Highway Agency.