Presenters: Mark Rose, PE and Mark Stamey

GeoEngineers, Inc.

Padden Creek Crossing was delivered as a design-build project as part Washington State’s effort to remove culvert barriers to fish passage by 2030. Located in Whatcom County (WA), the project included designing replacements for two culvert crossings—one under State Route 11 and one under Interstate 5. A team of engineers and contractors worked together to design and construct this project.

Many times, the engineering that takes place underneath the ground is overshadowed by the parts of the project that you can see. However, the foundation on which structures are built are critical to the success of the project.

This tour will showcase the geotechnical engineering and water resources engineering elements that were key to designing the right size culverts, redesigning the stream channel, and designing other critical subsurface infrastructure. The tour will also briefly describe the design-build delivery method and the efficiencies it created for this project.

Goals of this presentation:

• Provide an introduction to earth science and engineering professions such as geotechnical engineering, water resources engineering and environmental science.

• Showcase the practical application of these professions to real infrastructure.

• Provide an overview on how these types of projects are planned, designed and delivered.