TideGateway

Cohasset-01

Cohasset, Treats Pond

42.250203, -70.789278

Technical Specifications

Basic Properties

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

Operator & Management

Operator Type
PRIVATE
Operator
Permits
Purpose

Dimensions & Elevations

Dimensions
Invert Elevation
Installation Date
Tidal Influence

Culvert Details

Restriction Type
Beach
Geometry
Circular
Material
Concrete
Bottom Material
Number of Pipes
1
Dimensions
Condition
Comments
Culvert with a flapper is a structure that gets buried on major storms, area in the rear has no other visible means of salt water influence.

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
Salt Marsh: 20+ acres

Notes & Comments

General Comments
Field crew was advised that access to site is on private property and access is challenging. As a result, this site was not accessed. Next steps: Jason Burtner indicated that he has data on this site including tide gate attributes and photos.
Operation Plan
Operation Comments
Gate Comments
Flapper frequently obstructed by sand from accreting beach
Elevation Comments
Visit Comments
Other Comments
External Data Comments
© 2026 Massachusetts Bays Program. Monitoring tidegates across Massachusetts.