TideGateway

Saugus-02

Saugus

42.443353, -70.987569

Technical Specifications

Basic Properties

Type
Flap Gate
Material
Control
Condition
Geometry
Status
Inactive
Number of Gates
1

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
1
Dimensions
Condition
Comments
Temporary blocked culvert

Salt Marsh Field Assessment Results

Comprehensive field assessment data
2024 Field Assessment Protocols →

Physical Conditions Assessment

Channel Conditions

Channel Alteration and Ditching
Moderate (133-398 ft/acre)
Channel Constriction
Narrower than channel
Channel Erosion
Little (<10% of bank)
Sediment Deposits
None

Blockages

Debris Blockages
None
Evidence of Overtopping
No

Ecological Assessment

Habitat Observations

Ecological Impairment due to Tide Gate
Limited
Crab Burrow Intensity
Limited (<10% banks are densely
Ponding and Die-off Depressions
Limited(<10% of marsh platform
Phragmites Present
Moderate (10-60%)

Invasive Species

Upstream Invasive Species
Yes
Downstream Invasive Species
Yes
Invasive Species Notes
Phragmites present along channel and marsh fringe.

General Comments

Minimal low marsh community but abundant native high marsh. Culvert may be slightly undersized and constricting flow. More phragmites is present downstream than upstream so impact of culvert may be minimal.

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)

No data

Restoration Potential

Restoration prioritization and planning information from MassBays regional coordination

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

Legacy data from previous surveys and documentation

Environmental Data

Invasive Species
Restoration Status
Invasive Comments
Restoration Comments
Future project under design to restore marsh
Upstream Area

Notes & Comments

General Comments
Operation Plan
Operation Comments
Gate Comments
Missing tide gate
Elevation Comments
Visit Comments
Other Comments
Phragmites domintated
External Data Comments
© 2026 Massachusetts Bays Program. Monitoring tidegates across Massachusetts.