Stream & Wetland Restoration


Streambank Bioengineering Job Aid available

January 2018

Bioengineering uses plants to stabilize and reduce erosion on streambanks, bringing together engineering, ecology, and landscape architecture for long-term solutions to reduce risk from natural hazards.  This job aid presents the benefits of bioengineered solutions, describes commonly used measures, and identifies steps to plan and execute a successful project, including criteria to use in selecting the right approaches.  It includes case studies demonstrating practical applications of bioengineering methods in riverine environments subject to bank erosion and habitat degradation. 

Link to:


Stream Maintenance- Guidelines for Stream Obstruction Removal – FAQ 2017

October 2017

This 8-page Frequently Asked Questions developed by the KDOW is a must read.  Log jams, fallen trees, sediment (silt, sand and/or gravel), debris, and other materials can build up and obstruct flow in ditches, streams, culverts, and under bridges during and after periods of heavy rainfall.  These obstructions may create an increased risk of flooding, property and infrastructure damage, and result in erosion and increased sedimentation.  Removing stream obstructions is a temporary solution; streams naturally deposit sediment and form meanders during periods of high flow.

Natural debris and sediment play important roles in aquatic ecosystems.  If done improperly or excessively, removing stream obstructions may have negative impacts on-site, upstream, and downstream of where the obstructions are being removed.  The answers provided in this FAQ outline common best practices for stream obstruction removal.

Link to:  Stream Maintenance- Guidelines for Stream Obstruction Removal – FAQ 2017.


Guidance for Design Hydrology for Stream Restoration and Channel Stability

October 2017

The National Academy of Sciences, Engineering, and Medicine’s Transportation Research Board (TRB)’s National Cooperative Highway Research Program (NCHRP) Research Report 853: Guidance for Design Hydrology for Stream Restoration and Channel Stability provides written guidance and interactive tools to help hydraulic engineers assess the current conditions adjacent to a stream crossing and in the upstream watershed.  Specifically, the guidance and tools provide support in assessing the current conditions adjacent to a stream crossing and in the upstream watershed to determine design effort, performing the appropriate hydrological and geomorphic analysis using a set of analytical and analog tools, and designing the channel through the stream crossing for stability and sediment balance.

In addition to the report, users can download the contractor’s final report; the spreadsheet-based Capacity Supply Ratio Stable Channel Design Tool (CSR Tool) for computing analytical channel designs that account for the full spectrum of sediment transporting events; an example of the CSR Tool being used on a sand bed stream (Big Raccoon); and an example of the CSR Tool being used on a gravel/cobble bed stream (Red River).


KDOW Publishes New Tool to Help Landowners Understand Stream Obstruction Removal

September 2017

We all live downstream.  This means that the usability of the water available to us is determined by our upstream neighbors.  Certain activities in and around streams require permits, especially if there is an impact to a wetland, floodplain, or the water quality of a given area.  However, if you follow some simple guidelines and best practices, you may work in streams without obtaining a permit from the Kentucky Division of Water or the US Army Corps of Engineers.

In September 2017, the Kentucky Division of water published a new web resource that details some of the commonly occurring situations where you can work in the stream without obtaining a permit.  The site includes a “Guidelines for Stream Obstruction Removal” brochure, a FAQ sheet, and links to mapping tools that can help you determine if your stream has any special requirements.  To learn more check out the website.


Wetland Restoration Contemporary Issues & Lessons Learned

August 2017

The intended audience for this report includes professionals in federal, state and tribal agencies as well as those in private practice and academia. It should be useful to anyone who works in the field of wetland restoration including regulators, policy makers, practitioners, wetland managers, and individuals who are interested in wetland restoration. This report 1) documents barriers and problems associated with wetland restoration practices, 2) explores what can be done to address these challenges, and 3) outlines a series of practical actions to improve wetland restoration outcomes. This paper is divided into two chapters: 1) Overall Challenges and 2) Actions to Improve Wetland Restoration. Download the publication, Wetland Restoration. 


Environmental Aspects of Integrated Flood Management: Case Studies

World Meteorological Organization (WMO)  – 2017

Integrated Flood Management addresses issues of human security and sustainable development from the perspective of flood management, within the framework of Integrated Water Resources Management (IWRM).  Some of the underlying causes that make it difficult to integrate the growing concerns regarding environmental degradation into sound flood-management practices arise from a communication gap between the various disciplines involved in understanding the varying perspectives of sustainable development (WMO, 2006).  Click on Environmental Aspects of Integrated Flood Management.


Improving Outcomes and Increasing Benefits Associated with Wetland and Stream Restoration Projects.  

September 2014

The Environmental Law Institute and The Nature Conservancy released a new handbook to advance the use of a watershed approach in the selection, design, and siting of wetland and stream restoration and protection projects, including projects required as compensatory mitigation for permitted activities.  The joint report, Watershed Approach Handbook: Improving Outcomes and Increasing Benefits Associated with Wetland and Stream Restoration and Protection Projects demonstrates how using a watershed approach can help ensure that these projects also contribute to goals of improved water quality, increased flood mitigation,improved quality and quantity of habitat, and increases in other ecological services and benefits.


For more mitigation resources and other publications, go to KAMM’s Mitigation Resources page.








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