Construction Design, Specifications,
Permitting & Monitoring

NSD’s beginnings are strongly tied to helping clients construct river, stream and wetland restoration projects in complex and challenging environments. We proudly continue that tradition, taking 10 – 20 projects to construction throughout each year in a range of in-water fish windows for rivers, streams and tidal areas. With projects varying in construction cost from $50K to $7.5M each, we deliver on-site construction inspection for design-bid-build, design-build and field-directed construction approaches. From simple sketches to full PS&E, we deliver the right design level of detail for the situation, with competent, seasoned inspectors who are comfortable collaborating with contractors to get it built right.