Harwich-02
Harwich, Red River
41.667768, -70.044646
Technical Specifications
Basic Properties
- Type
- Multiple
- Material
- Metal
- Control
- Manual Gear
- Condition
- Good
- Geometry
- Rectangular
- Status
- Active
- Number of Gates
- 0
Operator & Management
- Operator Type
- PUBLIC
- Operator
- Harwich Harbormaster / Department of Natural Resources
- Permits
- Order of Conditions
- Purpose
- Flood Protection and Restoration
Dimensions & Elevations
- Dimensions
- 3ft diameter, 4ft height
- Installation Date
- 2012
Culvert Details
- Restriction Type
- Roadway
- Geometry
- Rectangular
- Material
- Concrete
- Bottom Material
- Riprap
- Number of Pipes
- 0
- Dimensions
- 3ft diameter, 4ft height
- Condition
- Good
- Comments
- According to the O&M plan dated 12/14/2012,the 3' by 4' concrete box culvert was installed under Old Wharf Road in May 2012.
Historical Records
Environmental Data
- Invasive Species
- Yes
- Restoration Status
- In-Progress
- Invasive Comments
- According to the Cape Cod tidal atlas, "phragmites growth is significant near the seaward opening, but only minor in the site's upstream affected area."
- Restoration Comments
- According to the O&M plan dated 12/14/2012, restoration is underway and being performed iteratively.
- Upstream Area
- Salt Marsh: 5.54
Notes & Comments
- General Comments
- Site is located at Old Wharf Road directly to the north of the Red River Beach Parking Lot. New tide gate installed as part of the Red River restoration project. Implemented as part of the Cape Water Resources Plan, the project involved two culvert replacements behind the town beach. The project was implemented by the Town of Harwich and included a new culvert and gate within the upper marsh to prevent storm flooding of an abutter.
- Operation Plan
- Yes
- Operation Comments
- According to the O&M plan dated 12/14/2012, the operational goal is to manage high tide levels to prevent tidal flow onto the driveway at 104 Julien Road while maximizing tidal exchange in the marsh. "The tide gate will be set to restrict the proposed high tide level at the Upper Marsh to elevation 2.5 NAVD88"." Additional and specific operation notes are present in the O&M plan.
- Gate Comments
- According to the O&M plan dated 12/14/2012, the culvert was fitted with an "adjustable combination slide and flap gate, manufactured by Whipps Inc. of Athol, MA."
- Elevation Comments
- Specific tide gate and tidal influence elevations were not present in the O&M plan dated 12/14/2012.
- External Data Comments
- Final Red River Beach Tide Gate Operation and Maintenance Plan May 2012
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