Construct rocks strategically in streams to dissipate water energy and reduce flooding

Construct rocks strategically in streams to dissipate water energy and reduce flooding
Hazards
Measure Type
Gray Engineering vs Nature Based Solutions

Details

Rocky in-stream techniques (e.g., riffles, spurs) involve constructing rocks strategically in streams to help dissipate water energy and reduce flooding. Work with relevant agencies and landowners to determine feasibility.

Capital Cost

Low/Moderate (implementation) – low material costs, high technical expertise

Operations & Maintenance

Low/Moderate – may require adjustment of rock configurations

Effectiveness

Moderate/High – can limit the flow of water and reduce flooding

Flexibility

High – rock configurations can be adjusted as needed

Barriers to Implementation

DEC permitting; design knowledge

Equity

Ensure that techniques do not exacerbate flood risk to equity areas/downstream communities, and/or mitigate associated downstream impacts

References