Warhill Offsite Stream Restoration
James City County, VA

Project Summary
Timmons Group has completed design of the Warhill Offsite Stream Restoration to support the Ironbound Road Regional Stormwater BMP Project in James City County’s College Creek watershed. The Regional Stormwater BMP Project is designed as a much needed stormwater quantity and quality project for the watershed, but will require direct impacts to approximately 535 linear feet of degraded, headwater stream channel.

The Warhill Project includes the restoration of over 700 linear feet of degraded channel as a mitigation offset of the permanent stream impacts necessary for the construction of the Regional Stormwater BMP. The construction of the BMP will yield stormwater pre treatment at the location of an actively degrading and polluted headwater stream channel while the stream restoration proposed at the Warhill Site will restore a significant portion of a degraded, unstable stream channel. The Ironbound Road Regional BMP and the Warhill Offsite Stream Restoration represent a successful collaboration of complementing project components which maximize the water quality benefits for James City County and the Lower James River Watershed.

Cheroenhaka Wetland and Stream Mitigation Bank
Southampton County, VA

Project Summary
Timmons Group is currently assisting the Southampton County Industrial Development Authority in the development of a sustainable industrial park project which will blend environmental sensitivity withindustrial development. The project will create a location for industrial development onsite to support Southampton County’s growing economy as well as create the Cheroenhaka Wetland and Stream Mitigation Bank on adjacent portions of the project site. Including approximately 500 acres, the project site has been historically altered to promote a hydrologic regime conducive to agricultural production with site manipulations including stream channelization and drain tiling. These landscape modifications have lowered the water table elevation over much of the site.

The Cheroenhaka Bank will include 43 acres of wetland creation and the restoration of 7,500 linear feet of stream in the Nottoway River watershed. In addition, the project will include the preservation of 38 acres of bottomland hardwood wetlands and over 100 acres of adjacent, forested upland buffers. Based on the species composition of the existing onsite wetlands and the Coastal Plain geographic location, the onsite wetland creation is anticipated to provide habitat opportunities for rare woody species including Bald Cypress, Water Tupelo, and Overcup Oak.

Woodford Wetland and Stream Mitigation Bank
Caroline County, VA

Project Summary
Our Team of Environmental Scientists and Engineers have completed feasibility investigations and initiated the design and development phase of the Woodford Wetland and Stream Mitigation Bank. The approximately 400 acre project site adjoins the north bank of the Mattaponi River and has historically been disturbed by a combination of sand and gravel mining operations and more recent agricultural use.

The project presents a unique opportunity to combine abandoned mine land reclamation with natural resource banking development that will include wetlands, streams, and forested upland buffers. The variation of existing wetland habitat types provides a unique opportunity to build upon and maximize potential benefits of restoration at a location that shares a riparian corridor boundary with more than one half mile of the Mattaponi River. The Woodford Bank will include the combined preservation, enhancement, and restoration of 300 acres of wetlands and over 9,000 linear feet of stream channel to service offsite development in the Mattaponi, Pamunkey, and York River watersheds. The unique habitat creation opportunities of this project have allowed the coordination of long term habitat management of the Bank through Ducks Unlimited. This mitigation banking project has received regulatory approval from the Interagency Review Team (IRT), is currently nearing the completion of design, and is anticipated to begin construction in the summer of 2009.

West Broad Village Stream Restoration
Henrico County, VA

Project Summary
Timmons Group has completed design and construction of onsite stream restoration to support West Broad Village in the Short Pump Area of Henrico County. Designed to the client’s specifications as a mixed-use commercial and residential development by Timmons Group’s Commercial Services Group, the West Broad Village Project has provided a unique opportunity to perform environmental restoration in a highly urbanized and rapidly developing land corridor.

Timmons Group’s environmental professionals designed and implemented the restoration of over 1,100 linear feet of perennial stream channel as a part of this development project. Historically impacted by channelization and heavily influenced by the increased stormwater runoff associated with watershed urbanization, the restoration of the onsite tributary of Stony Run utilized natural channel design principles to restore stream pattern, dimension, and profile while preserving the integrity of the established riparian buffer adjacent to the stream. The West Broad Village Stream Restoration provides a valuable example of the opportunities available to restore and preserve our stream resources as a component of responsible development.