Threatened and Endangered Species Assessment - Spiraea


W3 Engineering provides 404/401 environmental permitting for proposed impacts to Waters of the US (streams and wetlands).

Our services include consultation with the permit applicant, preparation of the permit
application and coordination with the regulatory agencies.

Our team members have permitted numerous projects in NC and SC for over 20 years. The projects we have experience with range from small culvert/pipe replacements to large
industrial economic development projects.

Our four team members have over 70 years of combined protected species survey experience in NC, SC and VA. Not only are we familiar with most federally protected plants and animals in these states, we also have positive working relationships with the agencies.

Our team has completed hundreds of projects involving protected species surveys, ranging from small bridge projects to large-scale statewide, multi-species research.

The Clean Water Act is a federal statute established to maintain and restore the chemical, physical, and biological integrity of the waters of the United States. Section 404 of the Clean Water Act authorizes the US Army Corps of Engineers (USACE) to regulate the discharge of dredged or fill material into the waters of the United States, including wetlands, streams, and other waters. To define the location, size, and quality of waters of the United States, the USACE established a delineation protocol. A delineation is required for all projects that involve potential impacts to waters of the United States.

Our team members have over 50 years of combined experience delineating thousands of acres of wetlands in NC, SC and VA. Not only does our team have extensive experience delineating in the coastal plain, Piedmont and mountains, but we also have positive working relationships with the regulatory agencies.

Invasive, non-native or nuisance plant species can be a problem for some landowners/managers. Our firm has two certified pesticide/herbicide applicators with experience in preparing invasive species management plans to control and/or eradicate such species.


Our team has experience with such as species as:

  • Phragmites australis
  • Phalaris
  • Yaupon Holly W3 Engineering was contracted as part of a NCDOT Permit for Coastal Wetland Mitigation for the construction of the new Bonner Bridge, Outer Banks, NC. The UAS is spraying to treat Phragmites australis, an invasive species. Phalaris was part of a Plant Conservation Service Project at Bat Fork Creek mitigation site, East Flatrock, NC.

W3 Engineering uses Geographic Information Systems (GIS), an important tool to plan, analyze, and map data for environmental and engineering projects. We have experience building and maintaining GIS databases.

Multiple team members of W3 Engineering have had the privilege to work closely with the NC Department of Transportation leaders on a department-wide initiative to streamline and expedite project development and delivery. ATLAS, which stands for Advancing Transportation through Linkages, Automation, and Screening, is a GIS-based initiative that can be used to screen projects and identify issues that may affect the scope, schedule and budget by using data that has been assessed, verified and at times created, often with the assistance of authoritative agencies.

Our team members assisted in the early stages of planning for the department-wide initiative as well as providing more focused support with regards to protected species modeling development to aid in identifying habitat across the state to better assess the potential for impact.