TideGateway

Quincy-07B

Quincy

42.263640, -70.974002

Technical Specifications

Basic Properties

Type
Stop Logs
Material
Wood
Condition
Good
Geometry
Rectangular
Status
Active
Number of Gates
0

Operator & Management

Operator Type
PUBLIC
Operator
Town of

Dimensions & Elevations

Dimensions
4ft diameter, 4ft height

Culvert Details

Restriction Type
Roadway
Geometry
Circular
Material
Concrete
Number of Pipes
0
Condition
Good
Comments
There are two, 30 inch diameter culverts at the site.

2024 Field Survey Results

Comprehensive field assessment conducted in 2024

Physical Conditions Assessment

Channel Conditions

Channel Alteration
Limited (<133 ft/acre)
Channel Constriction
Narrower than channel
Channel Erosion
Severe (>60% of bank)
Sediment Deposits
Moderate (10-60% of channel wid

Blockages & Issues

Debris Blockages
Moderate (10-60% of opening)
Evidence of Overtopping
No

Transect Measurements

50 Yards

Open Water
5
Salt Marsh
54
Brackish
0
Freshwater
0
Ditch
0
Unvegetated
0

150 Yards

Open Water
7
Salt Marsh
66
Brackish
2
Freshwater
0
Ditch
0
Unvegetated
0

300 Yards

Open Water
5
Salt Marsh
113
Brackish
18
Freshwater
0
Ditch
0
Unvegetated
0

Ecological Assessment

Habitat Observations

Crab Burrow Intensity
Moderate (10-60% banks are dens
Ponding Depressions
None
Phragmites Present
Limited (<10%)
Ecological Impairment
Limited

Invasive Species

Upstream Invasive Species
Yes
Downstream Invasive Species
No
Invasive Species Notes
Phragmites limited to upland fringe with some mixing in high tide bush.
Additional Comments (2024)
Efforts have been previously made to restore marsh. Talking with homeowners, the marsh has come a long way from mowed upland grasses to a healthier marsh. Low marsh only exists along channel but high marsh is abundant. Due to proximity of houses this may be as open as tide gate can be. Grate is partially covered in debris and may need regular maintenance.

Historical Records

Legacy data from previous surveys and documentation

Environmental Data

Invasive Species
Yes
Invasive Comments
Phragmites were observed upstream.

Notes & Comments

General Comments
Wooden boards are in good condition
Operation Comments
Set of wooden boards blocking the opening of the right culvert.
© 2025 Massachusetts Bays Program. Monitoring tidegates across Massachusetts.