Utilizing Hydrobiogeomorphic Techniques in Low-Gradient Stream Restoration
Kelly Laplante
Black & Veatch
Tampa, FL
Authors: Kelly Laplante, Steven Collins
Stream restoration in low-gradient, subtropical landscapes presents distinct challenges where conventional, one-size-fits-all classification frameworks often fail. Standard reference reach approaches frequently impose perennial morphologies onto ephemeral wetland systems, ignoring intrinsic hydrologic, biologic, and geologic properties associated with specific drainage area types and valley slopes. This presentation outlines a Hydrobiogeomorphic (HBG) approach (Kiefer et al., 2015), which utilizes a classification hierarchy prioritizing watershed drainage area size and characteristics and valley slope to determine channel dimension, suitable plant species, and stream characteristics.
One of the main components of HBG that differentiates it from standard reference reach approaches is the utilization of biological components to maintain the structural integrity of stream restoration, as well as provide aesthetic and recreational value to the project. Plant roots provide the structural support required to maintain bank stability in unconsolidated sandy soils. By incorporating and emphasizing the biological component as one of the main components of the design, the ecological succession of the project can be guided towards a more resilient outcome by pre-selecting plant species that will be best suited for that area.
This presentation will describe how the HBG approach has been applied to a variety of disciplines, including industrial reclamation (Florida Phosphate mines), urban retrofits (Edward Bottomlands, Starke Florida), and urban core resilience (McCoys Creek, Jacksonville Florida).
About Kelly Laplante
Passionate about wetlands and environmental health, Ms. Kelly Laplante is a technical professional who draws on her background in wetlands, hydrology, and water resources. Currently, she specializes in stream and wetland restoration in Peninsular Florida utilizing natural channel design techniques.
Kelly Laplante | LinkedIn