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The True Cost of Natural and Beneficial Functions

Scott C. Blossom, PE, CFM, LEED AP
Blossom Consulting and Engineering, Inc.
Williamsburg, VA

Blossom Consulting and Engineering, Inc. (BCE) will compare multiple case studies where the quantification of natural and beneficial functions of the floodplain is involved. Project case studies will include consideration of the project in three (3) main areas:

Floodplain Restoration: The presentation will explore two (2) recent case studies where stream and floodplain restoration were quantified for credit. Cold Springs Nutrient Bank is a Stream Restoration Bank for Chesapeake Bay TMDL nutrient crediting in an active floodplain downstream of a flood control dam. This section will explore key design parameters for success stories after 3 years of monitoring. Brightwood Stream Restoration is an example of using stormwater local assistance funding (SLAF) and quantifying benefits using multiple Expert Panel / EPA Protocols, with focus on floodplain connectivity analysis with 1D/2D HEC RAS.

Linear Utilities in The Floodplain, finding a Balance: The challenge of preserving beneficial functions while meeting the increasing demands for energy in Virginia. This presentation component will address the intricacies of floodplain studies for linear utilities under pressure, restoration in riparian/utility corridors, in a dynamic FEMA regulatory environment, with consideration of the true costs/benefits associated.

Benefit Cost Analysis (BCA) for Dam Removal: The importance of floodplain analysis in conjunction with dam removal - a case study from the Shenandoah River Valley. This case study will explore the BCA associated with dam removal and quantifying ecosystem services associated with a BRIC application.

Learning objectives include:

  • Develop an understanding of hydraulic analysis associated with multi-stage channel design and how it is used to improve floodplain connectivity and ultimately beneficial functions of the floodplain, including discussion of EPA Protocols.

  • Provide insight into the complexities of energy demand as it relates to transmission lines in floodplains in the interest of improving resiliency and sustainability, discussed riparian corridor restoration.

  • Share data for cost benefit analysis associated with dam removal and stream/floodplain restoration, quantify ecosystem benefits.

 

About Scott C. Blossom, PE, CFM, LEED AP
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