December 15: Capital Branch Technical Presentation and Luncheon

Please RSVP by 12:00 pm Friday, December 9th

ASCE Capital Branch November Technical Presentation and Luncheon

Date: Thursday, December 15th, 2016

Location: CCBI Room 115, 626 High Street NE, Salem, OR 97301

Time: 12:00 pm to 1:30 pm

Cost: $15 Professionals, $5 Students

Topic: Tidal wetland restoration project at Karlson Island

RSVP: Please RSVP by 12:00 pm Friday, December 9th. To RSVP, CLICK HERE. The new window that opens up will allow you to register and indicate your preference for paying for the event. You can choose to either pay with a credit card at the time you register or indicate that you will pay at the door (cash only). Please note that all payments are non-refundable after the RSVP cut-off time. While the preferred registration method is clicking the link, we can also accept your RSVP via email at or by calling Erik McCarthy at (503) 485-5490.



Tetra Tech assisted CREST with the planning and design of a tidal wetland restoration project at Karlson Island, in the Columbia River. The project was designed to target the NOAA Estuary Module limiting factors by improving off-channel habitat access for salmonids and food web connectivity. Initial investigation of the project included developing a 2D hydraulic model to simulate water surface elevations, velocities, and flows at various tide levels for existing and alternative conditions. Various restoration alternatives were developed and analyzed resulting in the selection of a preferred alternative that met the project objectives and budget. The selected alternative was carried though to final design where Tetra Tech developed a full design plan set, construction technical specifications, bid sheets, and a project budget. Engineering support during construction was also provided by Tetra Tech.

Guest Speakers Biography –

Ryan Kilgren, PE | Project Manager and Water Resources Engineer

Ryan specializes in habitat restoration analysis and design projects. His consulting project experience spans the full project life cycle, including inception and data gap identification/collection, feasibility, design/cost development, and construction observation/inspection. Between his graduate school and consulting experience, he has over 13 years of experience with estuarine processes and restoration work in Columbia River estuary and other watersheds. He has served as lead engineer on several Pacific Northwest fish habitat and passage restoration feasibility and design projects, including the Karlson Island Tidal Marsh Restoration Project, Willamette Confluence Preserve Coast Fork/Turtle Flats and Lower Middle Fork Sites, Winter Lake Restoration Project, Wapato Access Tidal Marsh Restoration Project, and Oaks Bottom Wildlife Refuge Tidal Reconnection Project.


David Munro, PWS | Senior Ecologist and Project QA/QC

David is a wetland ecologist with two decades of experience assessing biological resources and managing environmental restoration projects. A large portion of David’s experience has focused on both freshwater and saltwater tidally influenced sloughs and wetlands. His experience includes managing or contributing to habitat restoration projects, large scale watershed planning projects, and wetland investigations; supporting Endangered Species Act and Clean Water Act investigations; preparing habitat models; and conducting field studies. He was the project manager for the USACE Lower Columbia River Section 536 Studies and Lower Willamette River Ecosystem Restoration Feasibility Study, and managed the Skipanon River 8th Street Dam Project. For this project, David provided senior habitat restoration input and QC oversight for the Tetra Tech project staff.