Lake Down Reference Material
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Technical Data (per SC-4.02.A)
- Pacific Water Resources Pacific Water Resources Estimate of Average Daily Inflow Rates to Oswego Lake by Month to Oswego Lake by Month [PDF 21kb]
- McVey Access Site and Overflow Spillway Topo Survey Map, May 2009 [PDF294 kb]
- Overflow Spillway Drawing at McVey [TIF 350 kb]
- Pacific Water Resources Lakewood Bay Flood Protection, 2000 [PDF 2mb]
- Pacific Water Resources Flood Management Alternatives, 2003 [PDF 6 mb]
- Geotechnical Data Report, Lake Oswego Interceptor Sewer, City of Lake Oswego, Oregon, October 2008 (GDR)
[PDF 153 MB]
- Revision Summary (February 2009) [PDF 59.9 kb]
- Addendum 1 [PDF 13 MB]
- Addendum 2 [PDF 13.7 MB]
- Revision Summary (February 2009) [PDF 59.9 kb]
- Additional Floating Dock Information and Drawings
- Lake Inflows Technical Memorandum , OTAK, December, 200. [PDF 111 kb]
- North Shore Bridge Water Line. [PDF 810 kb]
- Foothills Road Geotechnical Evaluation, City of Lake Oswego, OR, December 2005 [PDF 2.07MB]
- Oswego Lake Interceptor Sewer Upgrade Project - Hydrographic and Geophysical Investigation, March 2008 (Bathymetry Report) [PDF 136 MB]
- An Archaeological Reconnaissance Survey and Literature Review for the Oswego Lake Interceptor Sewer Replacement Project, Lake Oswego, Clackamas County, Oregon, April 2008 (Archaeological Report) [PDF 4.2 MB]
- Jar Test Report, July 2008 [PDF 134 kb]
- Owsego Lake Sediment Quality Data and Waste Characterization, January 2009 (Sediment Quality Data) [PDF 103 kb]
- Oswego Canal Storm Water Inflow Report-Storm Outfall Flows, Lake Oswego Interceptor Sewer, City of Lake Oswego, Oregon, January 2008 (Main Canal Storm Water Report)[PDF 1.6 MB]
- Flow Duration Analysis For Oswego Canal-Flow Duration Analysis, City Of Lake Oswego, OR, January 2008 [PDF 1.3 MB]
- FEMA 2008 Flood Insurance Study-Flood Insurance Study, Clackamas County, Oregon [ZIP 71.9 MB]
- Surface Water Management Master Plan, City of Lake Oswego, Oregon, July 1992 [PDF 10.9 MB]
- Lake Stormwater Flow Estimates Technical Memorandum, City of Lake Oswego, Oregon [PDF 104 kb]
- Oswego Lake Stormwater Outfalls and Creeks-Stormwater Outfalls Reference Drawings reference drawings, December 2009 [PDF 4 MB]
- Springbrook Creek Bridge Evaluation Technical Memorandum-Springbrook Creek Bridge Evaluation, November 2009 [PDF 1.85 MB]
- City of Lake Oswego As-Built Drawings
- Index Map of included As-Built Drawings [PDF 567 kb]
- As-Built Drawings [PDF 18.5 MB]
- Additional Sewer and Bridge As-Built Drawings [ZIP 43.5 MB]
- South Shore Blvd, Canal Bridge Load Ratings [ZIP 1.25 MB]
- Exhibit of Existing Bathymetry in the Mouth of the East Arm of Lake Oswego, February 2010 [PDF 455 kb]
- Lake Oswego Dam 30% Design Drawings
- Existing Conditions, Demolition and Staging Plan [360 kb]
- Dam Cross Sections [175 kb]
- Sections and Details [140 kb]
Reference Material1
- Lake Drawdown Control Pumping Rates
- DrawdownTime Analysis for Oswego Lake
- Map of All Easements in Project Site and vicinity, February 2009 [PDF 1.67 MB]
- Temperature Data and Oswego Lake Water Quality and Clarity Data [PDF 134 kb]
- Photos of Original Lake Interceptor Installation (1960's)
- "1960s sewer pipe line" [JPG 2 MB].
- "60s lake drain pipe line"[JPG 2 MB].
- Historical Mobilization Photos (from Pre-Bid Conference) [ZIP 389 kb]
- Floating Dock O&M Manual at The Terrace, Bellingham Marine. [PDF 590 kb]
- Lake Oswego Country Club Pump Station O&M Manual. [PDF 5.79 MB]
- Lake Oswego Country Club Pump Station Photos. [Zip 64.8 MB]
- Manhole Identification Correlation List. [PDF 9 kb]
- City of Lake Oswego Manhole Designation Correlation Listing Exhibit. [PDF 266 kb]
- AutoCAD file (Civil 3D): shows an overview of the lake, new and existing sewer, labeled MHs, bottom contours, access sites, and any other noteworthy information [dwg 4 MB]
- Bypass Pumping Figures (6 figures total) from Section 01015 in AutoCAD format (Civil 3D)
- Bypass Pumping Figure 1 [dwg 18 MB]
- Bypass Pumping Figure 2 [dwg 18 MB]
- Bypass Pumping Figure 3 [dwg 18 MB]
- Bypass Pumping Figure 4 [dwg 18 MB]
- Bypass Pumping Figure 5 [dwg 18 MB]
- Bypass Pumping Figure 6 [dwg 18 MB]
Reference Material Available Upon Request1,2
- Historical and Recent Photos
- Geotechnical Boring and Rock Core Samples
- the completeness of such reports, photographs, drawings, schedules, and other data for Contractor's purposes, including, but not limited to, any aspects of the means, methods, techniques, sequences, and procedures of construction to be employed by Contractor, and safety precautions and programs incident thereto; or
- other data, interpretations, opinions, and information contained in such reports, schedules, and data or shown or indicated in such photographs or drawings; or
- any Contractor interpretation of or conclusion drawn from these reports, photographs, drawings, schedules, and other data or any such other data, interpretations, opinions, or information.
March 2008
Drawdown and Easement Agreements
- Final executed Drawndown Agreements (needs revised Exhibits AA2 and AA3)
- Exhibit I - Final Executed Sewer Line Easement Agreement - without exhibits
January 2009
Amendment to Drawdown and Easement Agreements
- Escrow Agrement - Pacific NW Title-010609-Signed
- Exhibit A- Amend-1-Sewer Line Easement Agmt & Exhibits-010609-Signed
- Exhibit B - Amend-1-Drawdown Agmt-010609-Signed
- Exhibit C - Letter Agmt-LakeCorp-Exh A&B-010609-Signed