Ninemile Creek 100% Design Report Reach- June 2012
The remediation of Ninemile Creek is part of the effort to restore and clean up Onondaga Lake, adjacent plant properties, and tributaries. Ninemile Creek is one of the main tributaries to Onondaga Lake and is part of the complex system that provides habitat corridors to upstream wetlands and green areas. This system flows through the restored Linden Chemical & Plastics (LCP) wetlands, connects with the West Flume, flows into Geddes Brook and Ninemile Creek, and empties into Onondaga Lake.
This 100% Design Report presents design analysis, plans, and specifications for the Ninemile Creek remediation. The selected remedy addresses contaminated sediment located in the Ninemile Creek channel and soil/sediment in the adjoining floodplains, and provides the following ecological benefits:
- Increased length and sinuosity in Ninemile Creek
- Improved channel bed material for fish and macroinvertebrates
- Channel stability that protects surrounding roads and bridges while providing ecological function
- Increased connectivity between the Ninemile Creek channel and floodplain
- Increased buffer between Ninemile Creek and berms on former Allied industrial properties
- Habitat enhancements such as pools and riffles
- Increased habitat diversity to support native plants and animals
The remedy includes the following components:
- Removal and proper management of soil/sediment from the Ninemile Creek channel and adjoining floodplains, followed by consolidation at either the LCP Containment Area or the sediment consolidation area (SCA) that is being constructed at Wastebed 13 as part of the Onondaga Lake Bottom site remedy
- Placement of clean materials throughout the site
- Re-establishment and enhancement of habitat affected during work activities
- Long-term operation, maintenance, and monitoring
Ninemile Creek 100% Design Report Reach- June 2012
Report and Report Figures (PDF) (52 pages, 4.3 mB)
Background Material (PDF) (5 pages, 1.8 mB)
Appendix B- Engineering Assessment, Part 1 (PDF) (24 pages, 3.7 mB)
Appendix B- Engineering Assessment, Part 2 (PDF) (34 pages, 4.6 mB)
Appendix B- Engineering Assessment, Part 3 (PDF) (51 pages, 4.9 mB)
Appendix D- Specifications (PDF) (13 pages, 1.1 mB)
Appendix E- Channel Design Analysis Report, Part 1 (PDF) (39 pages, 5.1 mB)
Appendix E- Channel Design Analysis Report, Part 2 (PDF) (17 pages, 5.0 mB)
Appendix E- Channel Design Analysis Report, Part 3 (PDF) (88 pages, 3.2 mB)
Appendix I - Construction Quality Assurance Projection Plan (PDF) (34 pages, 1.8 mB)
Figures 1 Through 3- (PDF) (8 pages, 3.7 mB)
Other appendices and figures from the report can be found at the local repositories.
