WSSI’s engineering services* include:
- Stream Restoration and Stabilization Design
- Wetland Mitigation Design
- Sustainable Site Design
- Stormwater Wetland Systems Design
- Stream Assessments
- Watershed/Floodplain Studies
- Dam Breach/Dam Safety Analyses
- Stream and Wetland Construction Management
- Post-Construction Monitoring
*Offered in selected states
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Our stream restoration philosophy is based on the concept of Natural Channel Design, which seeks to restore a degraded stream by
mimicking, as much as possible, the characteristics of a "stable," natural system. Changes in a watershed's impervious area or land uses can drastically alter the
amount of water flowing downstream; in response, a stream will widen and incise in an effort to stabilize under the new flow regime. This process can take decades
and result in thousands of tons of sediment (and associated pollutants) being eroded and carried to downstream receiving waters. As the stream continues to incise
and become disconnected from the floodplain, the condition of the adjacent riparian area worsens, directly resulting in significant loss of streamside trees and threatening
adjacent utilities. WSSI's stream restoration designs create a stable and ecologically-functional channel that is capable of not only withstanding, but also thriving
under the hydrologic conditions resulting from development.
Our wetland mitigation experience includes Virginia’s first wetland bank, Virginia's first wetland and stream bank, and Virginia's largest wetland bank. Before
putting pen to paper, we assess a site's soils and hydrologic characteristics to ensure that our mitigation sites will replace the function of those wetlands impacted by
development.
Our sustainable site and stormwater wetland designs help to minimize the impact of excess stormwater runoff before it becomes a larger and more difficult problem to
correct. In this arena, we not only talk the talk; we walk the walk. Our office is the premier exhibit of Low-Impact Development in the region, and we
add more features annually as products and technologies improve. Our office allows us to show clients, regulators, and other interested parties how well sustainable
stormwater can truly work when designed and implemented with care.
Our all-encompassing approach to natural resources consultation also means that our engineers keep abreast of the most current changes in design regulation, ensuring
that we are always prepared to produce the best possible solutions for our clients.
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