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 Water, Sewer, & Stormwater Services

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Design sanitary systems

Allocate & estimate stormwater loads

Analyze hydraulics & combined sewer overflows

Analyze hydrogen sulfide formation & inlet capacity

Build & manage hydraulic models

Design & analyze culverts

Design & analyze low impact development controls

Design & analyze ponds & outlets

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Fire flow capacity

Hydraulic models

Water distribution system design

Flushing plans

Water loss identification

Energy use management

Pipe renewal prioritization

Real time network simulation

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Design stormwater systems

Highway Drainage System (including curb & gutter inlets)

Storm-water sewer networks & interconnected detention ponds

Subdivision drainage System

Sizing & designing of detention ponds & outlet structures

Bridge & culverts, including roadway overtopping

Water quality studies & simulation

Sanitary sewers, lift stations, CSO's, SSO's

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Design Objectives

Design Approach

Data Reqs.

Agency Coord.

Regulatory Coord.

Concept Develop.

Surface Drainage

Flow in Gutters

Drainage Inlet Design

Grate Type

Design

Open Channels

Pressurized

Outfalls

Maintenance

Assessment

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Inlet Structures

Access Holes

Junction Chambers

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Design

Storage Types

Water Budget

Detention

Retention

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Wet Ponds

Infiltration Trenches

Infiltration Basins

Sand Filters

Inlets

Vegetative

Design

Storage Reqs.

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Sediment Basins

Check Dams

Silt Fence

Diversion Dike

Seed. / Mulch.

Temp. Slope Drain

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A Design Model/Solution to a Challenging Urban Storm Drainage Project

The "Surf Master at the Sea" is a 140 unit high-rise condo building that was served by a conc. parking garage where the garage lower level was constantly flooded during inclement weather. The parking area was approx. 100 feet from the Atlantic Ocean and experienced hydrostatic pressure, high tide, and backflow from an adjacent retention facility.    

Old System:

  • Old underground storm drainage system flooded 2 feet deep at its center during inclement weather.

  • Deteriorated conc. pavement due to hydrostatic pressure caused by elevated sea level.

  • parking lot outlets was designed to discharge to the beach and to a adjacent dificient retention facility. 

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New System:

  • New underground perforated drainage system replaced the under-designed existing one which adequately retained surface runoff during storm events and during elevated sea level.

  • The system was designed to handle 10-year storm events.

  • Outlet to adjacent retention facility was eliminated and the outlet piping system remained and was replaced w/ anew one.

 Concrete Pavement:

  • 10'x10' 6" deep conc. panels laid over a 6" thick gavel bed.

  • A plastic sheeting was was applied over the gravel for addition protection to the jointing system and to the panel edges.

  • A jointing system consisted of sawed 1/8"-thick CJs and 1/2" EJs both filled w/ approved EJ materials 

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