Wellfleet-01
Wellfleet, Mayo Creek
41.930619, -70.029656
Technical Specifications
Basic Properties
- Material
- Metal
- Geometry
- Circular
- Status
- Active
Operator & Management
- Operator Type
- PUBLIC
Dimensions & Elevations
- Dimensions
- 2.5ft diameter
- Tidal Influence
- Upstream: -7.83 NAVD88, Downstream: -3.41 NAVD88
Culvert Details
- Restriction Type
- Roadway
- Geometry
- Circular
- Material
- Corrugated Metal
- Number of Pipes
- 1
- Dimensions
- 2.5ft diameter
2024 Field Survey Results
Comprehensive field assessment conducted in 2024Physical Conditions Assessment
Channel Conditions
- Channel Alteration
- Limited (<133 ft/acre)
- Channel Constriction
- Narrower than channel
- Channel Erosion
- Moderate (10-60% of bank)
- Sediment Deposits
- Limited (<10% of channel width)
Blockages & Issues
- Debris Blockages
- Moderate (10-60% of opening)
- Evidence of Overtopping
- No
Transect Measurements
50 Yards
- Open Water
- 0
- Salt Marsh
- 0
- Brackish
- 0
- Freshwater
- 0
- Ditch
- 0
- Unvegetated
- 0
150 Yards
- Open Water
- 0
- Salt Marsh
- 0
- Brackish
- 0
- Freshwater
- 0
- Ditch
- 0
- Unvegetated
- 0
300 Yards
- Open Water
- 0
- Salt Marsh
- 0
- Brackish
- 0
- Freshwater
- 0
- Ditch
- 0
- Unvegetated
- 0
Ecological Assessment
Habitat Observations
- Crab Burrow Intensity
- None
- Ponding Depressions
- None
- Phragmites Present
- Severe (>60%)
- Ecological Impairment
- Severe
Invasive Species
- Upstream Invasive Species
- Yes
- Downstream Invasive Species
- No
- Invasive Species Notes
- Phragmites is dominant plant species and provides full coverage from channel to upland boundary
- Additional Comments (2024)
- Duck bill tide gate has eliminated upstream tidal exchange. Area is almost entirely phragmites and appears to be more of a freshwater wetland than salt marsh.
Historical Records
Environmental Data
- Restoration Comments
- Feasibility study done in 2009-2010. Town working group convened in 2014 to plan restoration.
- Upstream Area
- Total: 19.33, Salt Marsh: 0
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