Ipswich-01A
Ipswich, Stage Island Pool
42.712171, -70.778948
Technical Specifications
Basic Properties
- Type
- Sluice Gate
- Material
- Metal
- Control
- Manual Gear
- Condition
- Good
- Geometry
- Rectangular
- Status
- Active
- Number of Gates
- 0
Operator & Management
- Operator
- USFWS
- Permits
- ACOE
- Purpose
- Restoration
Dimensions & Elevations
- Installation Date
- 1990
Culvert Details
- Restriction Type
- Berm
- Geometry
- Rectangular
- Material
- Concrete
- Number of Pipes
- 0
- Dimensions
- 3ft diameter, 3ft height
- Condition
- Good
Historical Records
Environmental Data
- Invasive Species
- Yes
- Restoration Status
- Unknown
- Invasive Comments
- Abundant phragmites; occassional loosestrife; abundant green crabs
Notes & Comments
- General Comments
- Permitted by ACOE with Ipswich-01B. Tide gate located at the Parker River National Wildlife Refuge at a berm not accessible by the general public. USFWS must be contacted to obtain access. Followups - Site visit conducted to obtain photos and vegetation status in October 2016. USFWS can provide additional details with a field visit including tide gate and culvert dimensions, invert elevations, and upstream acreage.
- Operation Plan
- Yes
- Operation Comments
- Tide gate operational purpose is to provide habitat for migrating shorebirds and waterfowl. There is no specific operational plan for the tide gate - it is detailed and adjusted as needed per the Refuge's annual habitat work plan. Operation of the tide gate is restricted to times when the clam flats are closed (Sundays or after major rain events).
- Gate Comments
- Metal screw gate with potential to add wooden stop logs into the control structure. The control structure was installed in the 1990s.
- External Data Comments
- ACOE Permit NEWE-87-206 issued 9/9/87
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