Twin Ponds

Twin Ponds

CIVIL & SITE DESIGN »

Type: Water Body Rehabilitation
Location: North Hempstead, New York
Client: Nassau County Department of Public Works
Construction Cost: $2,000,000

This project involved improvements to the Twin Ponds. The project consisted of:

  • Perform topographic survey of the pond and adjacent existing ground
  • Pond sediment and water quality testing
  • Evaluation of new retaining wall materials including steel, concrete and vinyl Maintenance and protection of traffic
  • Develop conceptual construction sequence
  • Develop construction access roads
  • Design new wetlands area to the south of South Pond
  • Evaluation of dewatering alternatives, including pumping and wellpoints

Responsible for the preparation of the environmental study, advanced design plans, specifications, construction cost estimate, and securing permits from regulatory agencies. This project was completed on time and within budget.

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Roosevelt Pond

CIVIL & SITE DESIGN »

Type: Water Body Rehabilitation
Location: Roosevelt, New York
Client: Nassau County Department of Public Works
Completion Date: 2008
Construction Cost: $2,000,000

This project consisted of improvements to Roosevelt Pond and the surrounding park. The project consisted of:

  • Preparation of environmental study &master plan for improvements to pond, adjacent park & inflow streams.
  • ncorporated GIS mapping into project base-mapping.
  • Perform a field reconnaissance and environmental inventory.
  • Replacement of timber bulkhead.
  • Maintenance and Protection of Traffic
  • .

  • Developed conceptual construction sequence.
  • Improvement / replacement of park amenities.
  • Perform topographic survey of pond and park.
  • Evaluated measures to reduce water fowl access to ponds.
  • Pond sediment and water quality testing.

Responsible for the preparation of project study, preliminary and final design plans, specifications and construction cost estimate, securing permits from regulatory agencies, bid evaluation, shop drawing review and construction support services. This project was completed on time and within budget.

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Paper Mill Pond Rehabilitation

CIVIL & SITE DESIGN »

Type: Water Body Rehabilitation
Location: North Hempstead, New York
Client: Nassau County Department of Public Works

This project involved improvements to Paper Mill Pond. The project consisted of:

  • Performing topographic survey of the pond and the adjacent terrain Pond Sediment and water quality testing
  • Dewatering and dredging of the pond
  • Access road for trucks to be loaded with dredged material
  • Pond bypass system
  • Communication with adjacent community and businesses

Responsible for the preparation of environmental study, preliminary and final design plans, specifications and construction cost estimate, securing permits from regulatory agencies and construction inspection services. This project was completed on time and within budget.

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Northern Ponds – Hempstead Lake State Park

CIVIL & SITE DESIGN »

Type: Water Body Rehabilitation
Location: Hempstead, New York
Client: NYS Department of Parks, Recreation and Historic Preservation
Completion Date: 2005
Construction Cost: $300,000

This project involved the improvements to Northern Ponds. The project consisted of:

  • Developing a master plan for the improvement of the water bodies and flows
  • Evaluate sources of and potential remedies for floatables.
  • Analyze water flow patterns in northeast and northwest ponds in conjunction with adjacent streams and drainage systems.
  • Evaluate sources of and potential remedies for sedimentation and erosion in ponds.
  • Examine cause of low water levels in ponds and evaluate potential remedies.
  • Design trash rack and erosion protection.
  • Design construction and maintenance access route

Responsible for the preparation of the master plan, preliminary and final design plans, specifications and construction cost estimate, securing permits from regulatory agencies. This project was completed on time and within budget.

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Milburn Pond

CIVIL & SITE DESIGN »

Type: Water Body Rehabilitation
Location: Freeport & Baldwin, New York
Client: Nassau County Department of Public Works
Completion Date: 2004
Construction Cost: $2,800,000

This project consisted of improvements to Milburn Pond and the adjacent park. The project consisted of: • Performing topographic survey of pond and park.

  • Sedimentation basin with access road and machinery ramp.
  • Maintenance and Protection of traffic.
  • Developing conceptual construction sequence.
  • Concrete retaining wall at shoreline.
  • Improvement/replacement of park amenities including asphalt paths, benches and trash receptacles.
  • Pond sediment and water quality testing.
  • Dewatering and dredging of pond.
  • Establishment of freshwater wetlands.
  • Pond aeration system.

Responsible for the preparation of environmental study, preliminary and final design plans, specifications and construction cost estimate, securing permits from regulatory agencies and construction support services.

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Halls Pond Rehabilitation

CIVIL & SITE DESIGN »

Type: Water Body Rehabilitation
Location: West Hempstead, New York
Client: Nassau County Department of Public Works

This project involved improvements to Halls Pond and the adjacent park. The project consisted of:

  • Performing topographic survey of the pond and park Pond sediment and water quality testing
  • Vinyl retaining wall at the pond shoreline Dewatering and dredging of the pond
  • Replacement of gates at exit structure
  • Installation of clay liner in the pond
  • Soil borings to determine soil characteristics and ground water elevation Pond water level augmentation well.

Responsible for the preparation of the environmental study, preliminary and final design plans, specifications and construction cost estimate, securing permits from regulatory agencies and construction support services. This project was completed on time and within budget.

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Cammanns Pond Rehabilitation

CIVIL & SITE DESIGN »

Type: Water Body Rehabilitation
Location: Hempstead, New York
Client: Nassau County Department of Public Works
Construction Cost: $600,000

This project involved improvements to Cammanns Pond and adjacent park. The project consisted of:

  • Performing topographic survey of pond and park.
  • Determine benefit to cost ratio for dredging and pond.
  • Replaced pond bulkhead with recycled plastic bulkhead. • Pond sediment and water quality testing.
  • Park improvements including landscaping.
  • Evaluating impact of tidal flow on construction.
  • Floatable collection system at pond exit.

Responsible for the preparation of environmental study, preliminary and final design plans, specifications and construction cost estimate, securing permits from regulatory agencies and construction support services. This project was completed on time and within budget.

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Middlesex Avenue Drainage Improvements

CIVIL & SITE DESIGN »

Type: Stormwater
Location: Islip, New York
Client: Town of Islip Department of Public Works
Completion Date: 2009
Construction Cost: $1,000,00

Prime Consultant for this project. The project intent was to conduct a detailed survey of Middlesex Avenue and intersecting roadways to provide a plan for drainage improvements along the entire length of the road. Middlesex Avenue is an east/west neighborhood road providing access for residents and travelers to private homes at the southern area of the Town of Islip. The roadway is part of an older, established neighborhood with varying cross sections from one end to the other.

The project consisted of:

The review of existing road use and roadway traffic patterns; review of all intersections within the study area; gathering of topographical information for the roads and private residences from a planimetric and topographical survey of the area; conducting a drainage survey of the systems and inverts for structures along Middlesex Avenue and intersecting streets; borings for sub-surface conditions and preparation of a separate map; analyzing existing conditions for drainage areas at key intersections; determining the projected impact to the surrounding environment; calculating the final drainage storm water requirements and preparing alternative solutions to the drainage problems along with associated costs.

Project was completed on time and within budget.

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Leewater Avenue Drainage Improvements

CIVIL & SITE DESIGN »

Type: Stormwater
Location: Nassau Shores, Massapequa, New York
Client: Town of Oyster Bay

This project consisted of preparing a report with analysis for tidal and storm water flooding including survey, mapping, drainage, as-built review, drainage structure condition investigation, pavement evaluation, watershed calculations and project report with interim and final improvement recommendations.

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Jackson Avenue & Atlantic Avenue

CIVIL & SITE DESIGN »

Type: Stormwater
Location: Seaford, New York
Client: Town of Hempstead
Completion Date: 2005
Construction Cost: $600,000

The project consisted of evaluating a low lying area in the Town of Hempstead and providing a comprehensive solution to reduce the magnitude and frequency of roadway flooding. Subsequent to the topographic survey and base-mapping that were conducted, it was determined that the roadway had an inadequate crown in certain locations and that the drainage systems outlets into the adjacent canals allowed tidal water to significantly impact stormwater removal during high tide periods. Also, the coring program revealed that the existing asphalt pavement was of inadequate thickness.

After summarizing these findings in the design report, detailed design plans were developed to improve the area. The roadway grade was raised in areas prone to flooding and the roadway pavement was completely replaced which allowed the correct crown to be established. Also, the drainage system was replaced with the drainage inlets being located in more appropriate locations and check valves were placed on the outlets in the adjacent canals. Other work performed for the project included the development of special specifications, a detailed cost estimate and preparation of property restoration sketches for use in communicating the proposed changes to the residents properties.

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