CRI develops compensatory mitigation alternatives for unavoidable wetland impacts associated with planned or proposed projects. CRI has designed numerous wetland and stormwater management mitigation systems including selecting appropriate planting materials, developing planting and grading plans, as well as writing design specifications and preparing cost estimates.
CRI has located and provided conceptual and final designs for all varieties of wetland mitigation projects. It has been our experience that successful mitigation projects begin with site selection. Landscape position within the watershed is a key evaluation factor as it relates to the hydrologic regime of the mitigation area and the opportunity for enhancement of water quality. Sites that are located in lower portions of the watershed and that have multiple sources of water provide the greatest opportunity for success. Other factors that we consider during site selection include soil type and grading requirements, site constraints such as utilities and adjacent land use, the type of hydrologic connection that can be made, and site access for construction.
CRI’s extensive experience in determining what makes a successful mitigation site has proved to be invaluable in gaining agency approval of project impacts and mitigation so that permits may be obtained and projects can move forward to the implementation phase.
In addition, CRI has conducted wide-ranging post construction monitoring of wetland mitigation sites to assist regulatory agencies in determining the success of a site. CRI staff has worked with regulatory agencies to develop new methodologies to more effectively monitor wetland creation sites. Monitoring includes field assessment of project success, including vegetative sampling, soil analysis and hydrologic monitoring. If it is determined that a mitigation site is not functioning as originally planned, CRI has experience in mitigation site remediation by determining the problem and developing potential solutions.
- ICC Design for Stream Restoration and Wetland Creation
- Ken-Gar Palisades Park Wetland Creation
- MD 32 Design-Build from Linden Church Road to I-70 Stream and Wetland Mitigation
- Mitigation Banking Performance Standards Evaluation
- New Nice/Middleton Bridge Replacement Project
- Open End Mitigation Monitoring
- Wetland Mitigation Design, Great Seneca Creek Floodplain (ICC SC-19 Site)
- Wetland Mitigation Design, Right Fork (ICC PB-1 Site)