Water Resources


Creating successful, stormwater solutions often involves partnerships with the public, our clients, and utilities. For many of our projects, we’re often working in residents’ backyards. Minimizing the impact of our designs and the need for future maintenance is not simple, but it’s one of the ways we make life easier.

Stormwater problems can cause serious issues for residents. We have experience working in these situations. Our team’s designs are practical and constructible, whether working with new or existing infrastructure. Our focused approach to utility coordination helps keep projects on schedule and within budget.


  • Hydrology
  • Enclosed and open system hydraulic analysis and design
  • Stream restoration
  • Preliminary engineering and concept studies
  • Floodplain analysis
  • Permitting
  • Detention/retention basin design
  • Capital improvements planning
  • Stormwater quality – BMPs
  • Pipe replacement
  • LEED certified design

Building capital improvement projects is always a difficult task due to all of the variable. When we are working with Affinis plans, you know all the bases have been covered. In the past five years, our Affinis plans have been flawless, and the staff is top notch and always there when you need them.

Joe Chick
Former CIP Construction Inspector City of Merriam, Kansas

We have noticed a consistency and excellence in the design of sewers and streets by Affinis that are a cut above other consultants and design firms. The 2009 Major Storm Project went as smooth as glass – all alignments, grades and elevations were correct. Affinis covers all the details necessary to complete a successful project.

John J. Will
Project Manager Linaweaver Construction, Inc.