About ASI


Providing excellent and state-of-the-art civil & environmental engineering services

since 1984

Who We Are...

A Women-owned Business Enterprise (WBE), ASI was founded in 1984 by Karen E. Ridgway who continues to serve as the President and Principal Engineer of ASI.  ASI provides services on numerous small and large projects for municipal and private clients.



Applied Science, Inc. (ASI) has specialized in providing excellent and state-of-the-art civil and environmental services for large and small water supply, water resource and wastewater infrastructure projects for more than 35 years.   ASI has extensive experience in the computational modeling of flows in water transmission/distribution systems, sewers and tunnels, pumping stations, forcemains, and the liquid and sludge streams at water and wastewater treatment plants (WWTPs). The engineers at ASI are experts in this field and have successfully provided services on numerous pumping station designs for water, wastewater, and sludge. Also, ASI has analyzed transients and surges in numerous existing and proposed tunnels, relief sewers and forcemains, and has developed operational control strategies and designed surge control facilities for these systems.The engineers at ASI are innovative and up-to-date on design standards, regulations and operational and maintenance (O&M) issues concerning potable water treatment and distribution, sanitary sewer overflow (SSO) and combined sewer overflow (CSO) control, wastewater collection, storm water, floodplains, drainage, and wastewater treatment.  The firm currently employs civil and environmental engineers, CADD designers, field technicians and support staff.  ASI brings a qualified, experienced, and integrated organization that will meet the challenges of any project.  

ASI Principals

Karen Ridgway, PE


Principal Engineer

John Michalski, PE

​​​​​​​Vice President

Senior Project Manager

Brian Curson, PE

Senior Project Manager

Tim Minor, PE

Senior Project Manager

Andy Wood, PE

Senior Project Manager

Why Choose Us



Versatility / Capability


We possess the necessary tools to provide a quality product and positive outcome.

Worldwide Community


Our services are offered all over the world to our multi-language community of customers.

Strategy Development


We provide all our clients with a working strategy, based on professional analysis.

Past & Present Clients

Great Lakes Water Authority

Detroit Water & Sewerage Department

Wayne County Department of Environment

Macomb County Public Works Commissioner

Washtenaw County Drain Commissioner

Oakland County Water Resources Commissioner

City of Detroit

City of Dearborn

City of Dearborn Heights

City of Allen Park

Sumpter Township

Michigan Department of Transportation

Northeast Ohio Regional Sewer District

Many Private Developers and Contractors