I-680/SR4 Interchange Improvement Project Initial Study / Environmental Assessment
Initial Study with Negative Declaration/Environmental Assessment with Finding of No Significant Impact, November 2008
General Information and Negative Declaration (ND) [PDF - 227 KB]
Table of Contents [PDF - 33 KB]
List of Abbreviated Terms [PDF - 31 KB]
Chapter 1, Proposed Project [PDF - 7.7 MB]
Chapter 2, Affected Environment, Environmental Consequences, and Mitigation Measures [PDF - 9.7 MB]
Chapter 3, Comments and Coordination, and Required Approvals [PDF - 66 KB]
Chapter 4, List of Preparers [PDF - 40 KB]
Chapter 5, References [PDF - 54 KB]
Chapter 6, List of Technical Studies [PDF - 32 KB]
Appendix A, Project Phases and Details [PDF - 10.6 MB]
Appendix C, Summary of Mitigation and Avoidance Measures [PDF - 99 KB]
Appendix D, Summary of Relocation Benefits [PDF - 580 KB]
Appendix E, Glossary of Technical Terms [PDF - 204 KB]
Appendix F, Noise Measurements, Modeling Results, and Barrier Analysis [PDF - 182 KB]
Appendix G, Title VI Policy Statement [PDF - 207 KB]
Appendix H, Consultation and Coordination [PDF - 3 MB]
Appendix I, Peak Traffic Volume Diagrams [PDF - 3.4 MB]
Appendix J, Public Comments on the Initial Study/Environmental Assessment [PDF - 2.6 MB]
Appendix K, Wetlands Only Practicable Alternative Finding [PDF - 201 KB]
Appendix L, Resources Evaluated Relative to the Requirement of Section 4(f) [PDF - 156 KB]