TideGateway

Scituate-05

Scituate, Cedar Point

42.208179, -70.725424

Technical Specifications

Basic Properties

Type
Self Regulating Tide Gate
Material
Metal
Control
Condition
Geometry
Status
Active
Number of Gates
1

Operator & Management

Operator Type
PUBLIC
Operator
Town of Scituate
Permits
ACOE, NOI, OOC
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
on beach near low tide line, pipe may be undersized, upstream area gets more overwash than water from harbor

Salt Marsh Field Assessment Results

Comprehensive field assessment data
2024 Field Assessment Protocols →

Physical 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
Limited (<10% of opening)
Evidence of Overtopping
No

Ecological Assessment

Habitat Observations

Ecological Impairment due to Tide Gate
Moderate
Crab Burrow Intensity
None
Ponding and Die-off Depressions
Moderate (10-60% of marsh platf
Phragmites Present
Moderate (10-60%)

Invasive Species

Upstream Invasive Species
Yes
Downstream Invasive Species
No
Invasive Species Notes
In upper marsh ( upstream of culvert) and lower marsh (above tide gate) phrag is limited to upland fringe.

General Comments

Die offs, stagnant water and missing high marsh community indicate marsh is not draining quickly and may be holding excess water. Increased management may aid in high marsh recovery. Lower marsh foot print is narrower than upper marsh and as a result has less salt marsh. Per salt marsh association, no o&m with the town, managed by army corp, designed by CEI, planned development through marsh

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

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: 10-15 acres

Notes & Comments

General Comments
Operation Plan
Operation Comments
Gate Comments
Flapper replaced with SRT in underground vault on east side of Jericho Road as part of flood mitigation project
Elevation Comments
Visit Comments
Other Comments
lots of Phragmites
External Data Comments
US ACOE CENAE-R-2005-2830 Permit 7.20.2006 Cedar Point Tide Gate Notice of Intent 3.29.2005 Cedar Point Tide Gate Notice of Intent Revised 3.10.2006 Cedar Point Tide Gate Order of Conditions 3.1.2005 Cedar Point Tide Gate Inspection Report 4.10.2012 (Other) Cedar Point Tide Gate Consultant Comment Letter 12.28.2005 (Other)
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