Environmental Construction and Maintenance – Green Infrastructure and Stormwater Management

Bioretention Basins Installation and Maintenance –

Bioretention Basins perform a crucial role of cleansing water run off from roads and parking lots of contaminants before they reach the main stormwater system.  This is achieved by filtering through multiple drainage layers.  The clean water is then picked up by subgrade drainage lines and directed into the stormwater system.

Regenerative Stormwater Conveyance System Installation (RSC) –

A Regenerative Stormwater Conveyance (RSC) is a step pool stormwater channel designed to reduce transportation of sediment and nutrients downstream while also providing habitat diversity in the installation area. CWC’s expertise in RSC installation has become a cornerstone of our work with local municipalities.

Stream Restoration and Bank Stabilization –

Stream Restoration and Bank Stabilization are two practices that go hand in hand. Streambank Restoration is the practice of stabilizing and/or altering a stream channel to slow and direct the flow of water to reduce erosion and flooding. Soil encapsulated lifts, hard armoring with stone, and root wad revetments are a few but not all of the specific ways to perform Bank Stabilization.

Navigable Riverbank Restoration –

Navigable Riverbank Restoration products share many practices with Stream Bank Restorations including soil encapsulated lifts and hard armoring with stone.

Urban Stormwater Swales (Grass Swale, Infiltration Swale, Bio-Swale, Wet-Swale) –

Various grass swale designs that are generally installed in accordance with aesthetic and ecological diversity needs. They all are designed to reduce pollutant and stormwater runoff volume while enhancing infiltration and providing modest filtration of the stormwater they convey.

Stormwater and Submerged Gravel Wetlands –

Stormwater and Submerged Gravel wetlands are both stormwater controls which incorporate areas of shallow water and vegetation in order to remove pollutants through settling and biological uptake.

Rain Gardens –

A Rain Garden is a bioretention area designed to capture the first flush of runoff from impermeable surfaces including roadways and buildings. They reduce flow rate while also increasing reabsorption and filtering any pollutants that enter their area.

Pervious Parking Lots –

Pervious Parking lots use a pervious concrete which is designed in such a way that when fully cured there are porous voids which allow precipitation to naturally drain through to the subsurface stormwater controls. This allows runoff to be more easily managed and diverted to specified areas.

Dam Breach and Repair –

Under Construction

Utility Construction and Maintenance — Civil Grading

Substation Pad Construction –

CWC has become a go to contractor for local utilities to clear and grade substation pads in preparation for new substation construction or existing substation expansion.

Transmission Line Access Roads –

Under Construction

Low Water Crossings –

A Low-water Crossing is a road area that dips below the high water mark for a dry creek bed or drainage area. They allow access during low water flow conditions yet at high flow they become submerged and do not hinder water flow.

Mat Move Installation and Removal –

Under Construction

Erosion Control and Stabilization –

Under Construction

Substation Maintenance –

Under Construction

Bridge Installation –

Under Construction

Spill Containment and Cleanup/Disposal –

Under Construction