Truro-04
Truro, Little Palmer River
41.999157, -70.078249
Technical Specifications
Basic Properties
- Condition
- Fair
- Geometry
- Round
- Number of Gates
- 1
Operator & Management
- Operator Type
- Municipal
- Operator
- Town of Truro
Dimensions & Elevations
- Dimensions
- 2ft diameter
- Tidal Influence
- Upstream: N/A NAVD88, Downstream: -7.03 NAVD88
2024 Field Survey Results
Comprehensive field assessment conducted in 2024Physical Conditions Assessment
Channel Conditions
- Channel Alteration
- Moderate (133-398 ft/acre)
- Channel Constriction
- Narrower than channel
- Channel Erosion
- Little (<10% of bank)
- Sediment Deposits
- Moderate (10-60% of channel wid
Blockages & Issues
- Debris Blockages
- None
- Evidence of Overtopping
- No
Transect Measurements
50 Yards
- Open Water
- 6
- Salt Marsh
- 0
- Brackish
- 0
- Freshwater
- 0
- Ditch
- 0
- Unvegetated
- 0
150 Yards
- Open Water
- 6
- 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
- Limited(<10% of marsh platform
- Phragmites Present
- Severe (>60%)
- Ecological Impairment
- Severe
Invasive Species
- Upstream Invasive Species
- Yes
- Downstream Invasive Species
- No
- Additional Comments (2024)
- Town already plans to remove both Truro tide gates and restore upstream salt marsh. Culverts allowing ground water seepage into pipe and back flowing upstream during low tide. Flapper replaced in 2019. Upstream channel has been straightened and is ditch surrounded by upland for about 260’. Dense phragmites surrounds channel further upstream. Cattails were observed even further upstream indicating very limited tidal flushing and mostly a freshwater wetland.
Historical Records
Notes & Comments
- General Comments
- Flapper slightly open at low outgoing tide. Lined with 18” HDPE in sections. Town plans to remove and replace.
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