Puget Sound Beach CSO Control projects Back to Library Technical informationFebruary 2011 Update: Draft Facility Plans (Barton and Murray, North Beach and South Magnolia) are now posted. All Facility Plans will be approved in summer 2011.
Technical information documents include supporting information and materials used to develop and evaluate CSO control approaches and alternatives for the Barton, Murray, North Beach, and South Magnolia project areas. Documents were generated or compiled from previous sources beginning in early 2007. Documentation of the selection process extended through 2010 when a preferred proposal was recommended for each project area. A PDF Reader is required to view PDF files linked off of this page. The PDF file sizes have been reduced as much as possible, but some of the files are very large. Contact the Beach CSO Control project team if you would like CD versions of these documents. GeneralDocuments related the authorization of the CSO beach projects; technical analysis of Green Storm Water Infrastructure; CSO Control Program engineering studies and analysis. > Back to top of page CSO Beach Projects Document BindersThe CSO Beach projects document binders are intended to include materials developed as part of creation and evaluation of CSO control approaches and alternatives beginning in early 2007 and culminating in the selection of a preferred project alternative, currently scheduled for 2010. As of this date, this document includes materials developed by the project team from March 2007 through February 2010. At the end of February 2010, the project team evaluated nine alternatives and selected three alternatives from that group for refinement in 2010. As of February 2010, that work is ongoing. When the process to select a preferred alternative is completed in 2010, documentation for this phase of the work will be added to this document. Binder 1. Alternatives Evaluation ProcessDescribes the process used in all four basins for the identification and evaluation of alternatives against a range of factors.
| Document |
Status |
Alternatives Development and Screening Process Overview, Feb. 19, 2010 |
Posted June 16, 2010 |
TM 202.1 CSO Control Approach and Planning Boundaries, Final Draft, December 2007 (57MB) |
Posted June 16, 2010 |
| TM 203.1 Barton, Murray , Magnolia, and North Beach facility selection Criteria, August 1, 2007 |
Posted June 16, 2010 |
Memos: - Developing Criteria for Evaluating CSO Alternatives, Aug. 19, 2009
- Team Input through alternative development and evaluation, Aug. 19, 2009
- Selecting Candidate Sites for CSO Control Approaches, Aug. 19, 2009
- Technical Considerations for Alternative Development, Sept. 16, 2009
- CSO control alternatives review and Comment procedure, Sept. 22, 2009
- Alternative Narrowing Process, Nov. 23, 2009 (refer to CSO Team meeting and workshop notes)
Draft Work Schedule - Barton, Murray, Magnolia, North Beach CSO Facilities Project, Sept. 2, 2009
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Posted June 16, 2010 |
| Alternative Analysis Draft Criteria |
Posted June 16, 2010 |
| CSO Control Facility Component Figures and Basic Design Criteria |
Posted June 16, 2010 |
| CSO Team Review Comment |
Posted June 16, 2010 |
| CSO Team meeting and workshop notes, August - December 2009 |
Posted June 16, 2010 | > Back to binder list | top of page Binder 2. Basins Hydrologic/Hydraulic Model> Back to binder list | top of page Binder 3. Alternative Basis of Costs and Cost Estimates
> Back to binder list | top of page Binder 4. Barton Summary of Alternatives Development Process
| Document |
Status |
Introduction |
Posted July 13, 2010 |
Introduction and Basis of Project |
Posted July 13, 2010 |
Early Planning Confirmation - Flow Projections
- Workshop #1 Agenda and Presentation, Mar. 20, 2007 - 18MB
- Workshop #2 Initial Alternatives descriptions - 15MB
- Workshop #2 Presentation, and attendees questions, May 30, 2007 - 11MB
- Ecology briefing, Aug. 13, 2007
- Tech Memo (TM202.1, TM203.1) Review Workshop, Sept. 13, 2007 - 52MB
- Final Draft, TM 202.1, CSO Control Approach and Planning Boundaries, Final Draft, Dec. 2007 - 36MB
- Final Draft, TM 203.1, CSO Facility Selection Criteria, August 2007
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Posted July 13, 2010 |
Flow Monitoring Results |
Posted July 13, 2010 |
Initial Nine Alternatives |
Posted July 13, 2010 |
Development and Refinement of Three Alternatives - Refer to the Barton and Murray CSO Control Facilities Plan |
|
Selection of Preferred Alternative - Refer to the Barton and Murray CSO Control Facilities Plan |
| > Back to binder list | top of page Binder 5. Murray Summary of Alternatives Development Process
| Document |
Status |
Introduction |
Posted June 11, 2010 |
Introduction and Basis of Project |
Posted June 11, 2010 |
Early Planning Confirmation - Flow Projections
- Workshop #1 Agenda and Presentation, Mar. 20, 2007 - 18MB
- Workshop #2 Initial Alternatives descriptions - 15MB
- Workshop #2 Presentation, and attendees questions, May 30, 2007 - 11MB
- Ecology briefing, Aug. 13, 2007
- Tech Memo (TM202.1, TM203.1) Review Workshop, Sept. 13, 2007 - 52MB
- Final Draft, TM 202.1, CSO Control Approach and Planning Boundaries, Final Draft, Dec. 2007 - 36MB
- Final Draft, TM 203.1, CSO Facility Selection Criteria, August 2007
|
Posted June 11, 2010 |
Flow Monitoring Results |
Posted June 11, 2010 |
Initial Nine Alternatives |
Posted June 11, 2010 |
Development and Refinement of Three Alternatives - Refer to the Barton and Murray CSO Control Facilities Plan |
|
Selection of Preferred Alternative - Refer to the Barton and Murray CSO Control Facilities Plan |
| > Back to binder list | top of page Binder 6. Magnolia Summary of Alternatives Development Process
| Document |
Status |
Introduction |
Posted July 15, 2010 |
Introduction and Basis of Project |
Posted July 15, 2010 |
Early Planning Confirmation - Flow Projections
- Workshop #1 Agenda and Presentation, Mar. 20, 2007 - 18MB
- Workshop #2 Initial Alternatives descriptions - 7MB
- Workshop #2 Presentation, and attendees questions, May 30, 2007 - 11.5MB
- Ecology briefing, Aug. 13, 2007
- Team briefing, Aug. 16, 2007 - 3.6MB
- Tech Memo (TM202.1, TM203.1) Review Workshop, Sept. 13, 2007 - 52MB
- Final Draft, TM 202.1, CSO Control Approach and Planning Boundaries, Final Draft, Dec. 2007 - 36MB
- Final Draft, TM 203.1, CSO Facility Selection Criteria, August 2007
|
Posted July 15, 2010 |
Flow Monitoring Results |
Posted July 15, 2010 |
Initial Nine Alternatives - South Magnolia Basin CSO Control Alternatives workshop, Aug. 19, 2009 - 22MB
- South Magnolia Non-Technical Criteria Review, Sept. 22, 2009 - 20MB
- Technical Review meetings (Oct. 21, 2009; Oct. 22, 2009; Oct. 28, 2009, Oct. 29, 2009), Control Approaches Schematics and Criteria Information Needs - 7.4MB
- Alternatives Analysis
|
Posted July 15, 2010 |
Development and Refinement of Three Alternatives - Refer to the South Magnolia CSO Control Engineering Report (Facility Plan) |
|
Selection of Preferred Alternative - Refer to the South Magnolia CSO Control Engineering Report (Facility Plan) |
| > Back to binder list | top of page Binder 7. North Beach Summary of Alternatives Development Process
| Document |
Status |
Introduction |
Posted June 25, 2010 * Posted June 30, 2010 |
Introduction and Basis of Project |
Posted June 11, 2010 |
Early Planning Confirmation - Flow Projections
- Workshop #1 Agenda and Presentation, Mar. 20, 2007 - 18MB
- Workshop #2 Initial Alternatives descriptions - 15MB
- Workshop #2 Presentation, and attendees questions, May 30, 2007 - 11MB
- Ecology briefing, Aug. 13, 2007
- Tech Memo (TM202.1, TM203.1) Review Workshop, Sept. 13, 2007 - 52MB
- Final Draft, TM 202.1, CSO Control Approach and Planning Boundaries, Final Draft, Dec. 2007 - 36MB
- Final Draft, TM 203.1, CSO Facility Selection Criteria, August 2007
|
Posted June 11, 2010 |
Flow Monitoring Results |
Posted June 11, 2010 * Posted June 30, 2010 |
Initial Nine Alternatives - Basin overview map*
- South Magnolia/North Beach Basin CSO Control Alternatives workshop, Aug. 26, 2009*
- North Beach Non-Technical Criteria Review, Sept. 23, 2009*
- Technical Review meetings (Oct. 21, 2009; Oct. 22, 2009; Oct. 28, 2009, Oct. 29, 2009), Control Approaches Schematics and Criteria Information Needs - 10MB
- Alternatives Analysis
|
Posted June 25, 2010 * Posted July 2, 2010 |
Development and Refinement of Three Alternatives - Refer to the North Beach CSO Control Facility Plan |
|
Selection of Preferred Alternative - Refer to the North Beach CSO Control Facility Plan |
| > Back to binder list | top of page Basin Specific Additional Engineering and Technical DocumentsAdditional basin specific documents that are not already included in the binders. North Seattle basins (South Magnolia and North Beach)
| Document |
Status |
| North Beach Inflow and Infiltration Alternative Analysis, Project memo, May 18, 2010 |
Posted June 17, 2010 |
| North Beach Pump System Test, Nov. 3, 2009 |
Posted June 17, 2010 |
| North Beach Force main Inspection report, May 31, 1989 - 16MB |
Posted June 17, 2010 |
| North Beach Pump Station Overflow Control Predesign Report |
Posted June 17, 2010 |
| Infiltration Inflow Analysis Carkeek Park System, August, 1979 |
Posted June 17, 2010 |
Infiltration/Inflow Analysis Facility Plan for the Carkeek Transfer/CSO Facilities Project, December, 1988 |
Posted June 17, 2010 |
| North Beach Force Main and Carkeek Park Outfall One-line maps of the conveyance system |
Posted June 29, 2010 |
| South Magnolia Interceptor One-lines maps of the conveyance system |
Posted June 29, 2010 | West Seattle basins (Murray and Barton)> Back to top of page |
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