Cory Frehsee, PE, LEED AP

Highly constrained urban sites present challenges that require unique storm water solutions, which has become Cory's passion and specialty over the last 25 years. From brown field contamination to steep slopes to small sites, Cory has experience in finding solutions for all types of urban stormwater sites.

Stormwater mitigation is important in each site to protect the environment while meeting each project's goals. With a passion for grading design, SBC brings the experience and creativity necessary to find cost effective, thoughtful solutions that are environmentally sensitive. Stormwater infrastructure can be expensive and land consuming, but unique solutions will help meet regulator requirements while maintaining the needs of the project and financially feasibility.

Downtown redevelopment is an essential aspect of maintaining our communities' healthy economies. These sites often bring many challenges, further complicated by new regulatory requirements. SBC thinks outside the box, questioning and even pushing back on regulatory requirements with alternative solutions to meet the intent of the regulations while providing a design that satisfies the vision for the project.

Available in many different forms, pervious pavers are popular because they address multiple urban challenges at once: they control stormwater naturally, help reduce flood risk, and eliminate the need for costly stormwater infrastructure. Their versatility for a range of applications, ease of installation, and cost savings over the life
Available in many different forms, pervious pavers are popular because they address multiple urban challenges at once: they control stormwater naturally, help reduce flood risk, and eliminate the need for costly stormwater infrastructure. Their versatility for a range of applications, ease of installation, and cost savings over the life of the pavement make them a go-to choice for both public and private projects.

Also called a bioretention basin, rain gardens provide a highly effective, low-cost way to manage stormwater, helping reduce runoff, flooding, and water pollution while providing a landscape feature. Rain gardens provide an opportunity to use native plants, support pollinators and wildlife, and boost biodiversity in a way that traditional turf grass cannot.

Infiltration trenches often have a relatively small site footprint and provide a flexible option for installation along roads or parking lots. Their unobtrusive design makes them easy to incorporate into urban landscapes. Infiltration trenches efficiently reduce stormwater runoff volume, improve water quality, and replenish groundwater.

A type of pervious paver, grass pavers are widely chosen because they combine the structural support needed for vehicle traffic with stormwater management, allowing rainwater to soak into the ground and reducing runoff and surface flooding. Their green appearance promotes landscape aesthetics, helps lower urban heat, and provides a low-m
A type of pervious paver, grass pavers are widely chosen because they combine the structural support needed for vehicle traffic with stormwater management, allowing rainwater to soak into the ground and reducing runoff and surface flooding. Their green appearance promotes landscape aesthetics, helps lower urban heat, and provides a low-maintenance, eco-friendly alternative to traditional pavement surfaces.
Copyright © 2025 Stone Boat Consulting, PLLC - All Rights Reserved.