Quincy-05
Quincy, Hough's Neck
42.262730, -70.969357
Technical Specifications
Basic Properties
- Type
- Tide Gate
- Material
- —
- Control
- —
- Condition
- —
- Geometry
- —
- Status
- Proposed
- Number of Gates
- 0
Operator & Management
- Operator Type
- —
- Operator
- —
- Permits
- —
- Purpose
- —
Dimensions & Elevations
- Dimensions
- —
- Invert Elevation
- —
- Installation Date
- —
- Tidal Influence
- —
Culvert Details
- Restriction Type
- Roadway
- Geometry
- Rectangular
- Material
- Concrete
- Bottom Material
- Riprap
- Number of Pipes
- 0
- Dimensions
- 3ft diameter, 5ft height
- Condition
- Fair
- Comments
- Concrete is cracked and re-bar is showing.
Salt Marsh Field Assessment Results
Comprehensive field assessment dataPhysical Conditions Assessment
Channel Conditions
- Channel Alteration and Ditching
- Severe (>398 ft/acre)
- Channel Constriction
- Narrower than channel
- Channel Erosion
- Severe (>60% of bank)
- Sediment Deposits
- None
Blockages
- Debris Blockages
- None
- Evidence of Overtopping
- Yes
Ecological Assessment
Habitat Observations
- Ecological Impairment due to Tide Gate
- Moderate
- Crab Burrow Intensity
- Moderate (10-60% banks are dens
- Ponding and Die-off Depressions
- Limited(<10% of marsh platform
- Phragmites Present
- Limited (<10%)
Invasive Species
- Upstream Invasive Species
- Yes
- Downstream Invasive Species
- Yes
- Invasive Species Notes
- Phragmites limited to occasional patches along upland boundary.
General Comments
No tide gate currently exists but is under consideration. Current marsh conditions show moderate restriction as evident by lack of low marsh community, erosion and higher stain marks on upstream side. Culvert may need widening. At a glance, house elevations appear to be high enough to support increased high tide level without need for tide gate but further analysis will be needed.Habitat Transects
First Transect (50 yards upstream of tide gate)
Second Transect (150 yards upstream of tide gate)
Third Transect (300 yards upstream of tide gate)
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
- No
- Restoration Status
- —
- Invasive Comments
- Minimal Phragmites upstream and downstream; only along the road.
- Restoration Comments
- —
- Upstream Area
- —
Notes & Comments
- General Comments
- US Army Corps of Engineers is proposing to modify the culvert for restoration of Willow Marsh. A tide gate is one proposed alternative.
- Operation Plan
- —
- Operation Comments
- —
- Gate Comments
- —
- Elevation Comments
- —
- Visit Comments
- —
- Other Comments
- —
- External Data Comments
- US ACOE Culvert Modification Proposal 12.17.2014 (Other)
Part of the Massachusetts Bays Program© 2026 Massachusetts Bays Program. Monitoring tidegates across Massachusetts.