Boardman Watershed Community Committee (BWCC)

1. Boardman Watershed Community Committee (BWCC) Meeting #2 Creek Alignment Options May 13, 2013

2. Roles and Responsibilities Diagram Clackamas County / OLSD Board Approvals BWCC Community Perspective Boards Decision-Making Clackamas County / OLSD input BWCC Residents information Engineering: HDR Team Public Involvement: Barney & Worth Design Team Public Facilitation / Technical Analysis / Develop Recommendations Boardman Watershed Community Committee

3. Purpose & Need for Project Replace two undersized and deficient culverts on Boardman Creek under River Rd and Walta Vista Dr. • Stream flow • Fish passage • Water quality • Stream habitat • Wildlife habitat Boardman Watershed Community Committee

4. Boardman Watershed Community Committee

5. Preliminary Engineering Process 1 2 3 4 • Legal Requirements • Physical Site Conditions • Environmental Permits • Residential Access / Emergency Response • Budgetary Constraints Identify Constraints and Opportunities, & Creek Alignment Develop and Evaluate Bridge, Roadway, & Construction Alternatives Define Goals and Objectives DONE ! In-Process Prepare Report Boardman Watershed Community Committee

6. Preliminary Engineering Schedule Boardman Watershed Community Committee

8. Why select the creek alignment first? • The creek alignment and cross-section is needed to resolve the project’s purpose and need for: • Stream flow • Fish passage • Water quality • Stream habitat • Wildlife habitat • The bridge locations, roadway improvements, and construction staging are dependent on where the creek is located. Boardman Watershed Community Committee

9. Why are the alternatives only “Conceptual”? • The detailed base mapping, the geotechnical report, and the hydraulic analysis are still being developed. • The project Design Criteria is under final review. • No coordination with environmental regulators has occurred to date. • There has been only limited constructability input. • The roadway and bridge optimization process is to occur after selection of the creek alignment. Boardman Watershed Community Committee

10. Assessed 10+ Project Alternatives • Multiple creek alignments options: • north, south, and at the creek’s current location • Multiple Walta Vista Drive re-location options: • Northand south of the current location • Assessed alts that connected into LaurelwoodDr and Deswell St • Alts that minimized the number of bridges, property impacts, environmental impacts, and construction staging impacts • Show process Boardman Watershed Community Committee

11. Overview of Feasible Alternatives • All feasible concepts require some form of property and/or easement acquisition. • Temporary project impacts vary between the alternatives. • Wildlife habitat enhancements opportunities vary between the alternatives. • Fish passage characteristics (i.e., creek velocities and dimensions) are similar for all concepts. Boardman Watershed Community Committee

13. Concept Features: Creek alignment similar to as-is condition Minimal opportunities for stormwater treatment No impact to existing driveway culvert Boardman Watershed Community Committee

14. Concept Features: • Creek alignment similar to as-is condition • Maximizes habitat and restoration opportunities • No impact to existing driveway culvert Boardman Watershed Community Committee

15. Next Steps Open House: Monday, May 20 (5:00 – 7:00 PM)Oak Lodge Sanitary District Office Meeting 3: Monday, June 17Select Creek Alternative / Bridge and Roadway Options Meeting 4: Monday, July 8Creek Restoration Options and Construction Impacts Meeting 5: Monday, September 9Conceptual Alternatives Wrap-up Boardman Watershed Community Committee