Winthrop-02
Winthrop , Lewis Lake
42.372314, -70.972785
Technical Specifications
Basic Properties
- Type
- Tide Gate
- Material
- —
- Control
- —
- Condition
- —
- Geometry
- —
- Status
- Proposed
- Number of Gates
- 0
Operator & Management
- Operator Type
- —
- Operator
- —
- Permits
- ACOE
- Purpose
- —
Dimensions & Elevations
- Dimensions
- —
- Invert Elevation
- —
- Installation Date
- —
- Tidal Influence
- —
Culvert Details
- Restriction Type
- —
- Geometry
- —
- Material
- —
- Bottom Material
- —
- Number of Pipes
- 0
- Dimensions
- —
- Condition
- —
- Comments
- —
Restoration Potential
Assessment
- Salt Marsh Impairment due to Tidal Restriction
- Moderate
- Potential Extent of Marsh Restoration
- Moderate
- Implementation Feasibility
- High
- Restoration Priority
- High
- Recommended Improvement Type
- O&M and Infrastructure
Notes
Site shows moderate salt marsh impairment due to restricted tidal flow. Replacement with self-regulating tide gate could restore approximately 5-8 acres of degraded marsh habitat. Good access for construction equipment. Regional coordination completed with town DPW and conservation commission.Historical Records
Environmental Data
- Invasive Species
- —
- Restoration Status
- —
- Invasive Comments
- —
- Restoration Comments
- —
- Upstream Area
- —
Notes & Comments
- General Comments
- City looking to install automatic tide gate. Issues include sedimentation, mosquitoes, and phragmites growth in Lewis Lake.
- Operation Plan
- Yes
- Operation Comments
- —
- Gate Comments
- —
- Elevation Comments
- —
- Visit Comments
- —
- Other Comments
- —
- External Data Comments
- US ACOE NAE-2015-2273 Permit Application 3.31.2016 US ACOE NAE-2015-2273 Permit 5.6.2016 Tide Gate Operation and Maintenance Plan 3.31.2016 MA BUAR Comment Letter 3.15.2016 (Other) Hydrodynamic Study Report November 2015 (Other)
Part of the Massachusetts Bays Program© 2026 Massachusetts Bays Program. Monitoring tidegates across Massachusetts.