Hingham-02
Hingham, Broad Cove
42.250930, -70.892000
Technical Specifications
Basic Properties
- Type
- Sluice Gate
- Material
- —
- Control
- —
- Condition
- —
- Geometry
- —
- Status
- Inactive
- Number of Gates
- 0
Operator & Management
- Operator Type
- —
- Operator
- —
- Permits
- —
- 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
- —
Salt Marsh Field Assessment Results
Comprehensive field assessment dataPhysical Conditions Assessment
Channel Conditions
- Channel Alteration and Ditching
- Limited (<133 ft/acre)
- Channel Constriction
- Narrower than channel
- Channel Erosion
- Moderate (10-60% of bank)
- Sediment Deposits
- None
Blockages
- Debris Blockages
- None
- Evidence of Overtopping
- No
Ecological Assessment
Habitat Observations
- Ecological Impairment due to Tide Gate
- Severe
- Crab Burrow Intensity
- None
- Ponding and Die-off Depressions
- Severe (>60% of marsh platform
- Phragmites Present
- Limited (<10%)
Invasive Species
- Upstream Invasive Species
- Yes
- Downstream Invasive Species
- No
- Invasive Species Notes
- Limited to patched along upland boundary.
General Comments
Tide gate is submerged at low tide and not viewable. Upstream is more salt pond than marsh. Marsh restoration potential is limited.Habitat Transects
First Transect (50 yards upstream of tide gate)
No data
Second Transect (150 yards upstream of tide gate)
No data
Third Transect (300 yards upstream of tide gate)
No data
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
- Salt Marsh: > 50 acres
Notes & Comments
- General Comments
- —
- Operation Plan
- —
- Operation Comments
- —
- Gate Comments
- Defunct sluice style tide gate in underground vault. Partially obstructed by boulder wedged in tide gate opening.
- Elevation Comments
- —
- Visit Comments
- —
- Other Comments
- —
- External Data Comments
- —
Part of the Massachusetts Bays Program© 2026 Massachusetts Bays Program. Monitoring tidegates across Massachusetts.