TideGateway

Harwich-01

Harwich, Red River

41.672159, -70.037194

Technical Specifications

Basic Properties

Type
Tide Gate
Material
—
Control
—
Condition
—
Geometry
—
Status
Active
Number of Gates
1

Operator & Management

Operator Type
PUBLIC
Operator
—
Permits
—
Purpose
—

Dimensions & Elevations

Dimensions
—
Invert Elevation
—
Installation Date
2012
Tidal Influence
—

Culvert Details

Restriction Type
—
Geometry
—
Material
—
Bottom Material
—
Number of Pipes
—
Dimensions
—
Condition
—
Comments
—

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
—
Upstream Area
—

Notes & Comments

General Comments
—
Operation Plan
—
Operation Comments
—
Gate Comments
New tide gate installed as part of restoration in 2012
Elevation Comments
—
Visit Comments
—
Other Comments
—
External Data Comments
—
© 2026 Massachusetts Bays Program. Monitoring tidegates across Massachusetts.