Weymouth-06
“Great Esker Park ”Weymouth, Weymouth Back River
42.241591, -70.932990
Technical Specifications
Basic Properties
- Type
- Sluice Gate
- Material
- Metal
- Control
- Manual Gear
- Condition
- Good
- Geometry
- Rectangular
- Status
- Active
- Number of Gates
- 1
Operator & Management
- Operator Type
- PUBLIC
- Permits
- ACOE
- Purpose
- Flood Protection
Dimensions & Elevations
- Dimensions
- 5ft diameter, 3ft height
- Installation Date
- 2014
Culvert Details
- Restriction Type
- Footpath
- Geometry
- Rectangular
- Material
- Concrete
- Bottom Material
- Riprap
- Number of Pipes
- 1
- Dimensions
- 5ft diameter, 3ft height
- Condition
- Good
2024 Field Survey Results
Comprehensive field assessment conducted in 2024Physical Conditions Assessment
Channel Conditions
- Channel Alteration
- Limited (<133 ft/acre)
- Channel Constriction
- Equal to channel
- Channel Erosion
- Moderate (10-60% of bank)
- Sediment Deposits
- None
Blockages & Issues
- Debris Blockages
- None
- Evidence of Overtopping
- No
Transect Measurements
50 Yards
- Open Water
- 1
- Salt Marsh
- 17
- Brackish
- 28
- Freshwater
- 0
- Ditch
- 0
- Unvegetated
- 0
150 Yards
- Open Water
- 1
- Salt Marsh
- 6
- Brackish
- 11
- Freshwater
- 0
- Ditch
- 0
- Unvegetated
- 0
300 Yards
- Open Water
- 0
- Salt Marsh
- 23
- Brackish
- 75
- Freshwater
- 0
- Ditch
- 0
- Unvegetated
- 0
Ecological Assessment
Habitat Observations
- Crab Burrow Intensity
- None
- Ponding Depressions
- None
- Phragmites Present
- Moderate (10-60%)
- Ecological Impairment
- Limited
Invasive Species
- Upstream Invasive Species
- Yes
- Downstream Invasive Species
- Yes
- Invasive Species Notes
- Along upland fringe and pushing into marsh.
- Additional Comments (2024)
- Low marsh is absent from both upstream and downstream side of tide gate so constriction may not be responsible. Culvert appears to be recently constructed and tide gate is left completely open the majority of the time.
Historical Records
Environmental Data
- Invasive Species
- Yes
- Invasive Comments
- Phragmites was abundant upstream and green crabs were observed in the rip rap around the sluice gate.
Notes & Comments
- Operation Comments
- Tide gate fully open to 3'
- External Data Comments
- US ACOE NAE-2009-2635 Permit 7.2.2014 US ACOE NAE-2009-2635 Great Esker Park Sluice Gate Operation and Maintenance Plan 8.6.2014 MWRA Great Esker Park Annual Compliance Report 12.15.2014 MWRA Great Esker Park Annual Compliance Report 12.15.2015
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