The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., prepared for Colorado Department of Transportation, Region 6., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice consequences -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazardous materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., prepared for Colorado Department of Transportation, Region 6., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice consequences -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazardous materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., prepared for Colorado Department of Transportation, Region 6., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice consequences -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazardous materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazards materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazards materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., prepared for Colorado Department of Transportation, Region 6., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice consequences -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazardous materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., prepared for Colorado Department of Transportation, Region 6., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice consequences -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazardous materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazards materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazards materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazards materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazards materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., prepared for Colorado Department of Transportation, Region 6., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice consequences -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazardous materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazards materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., prepared for Colorado Department of Transportation, Region 6., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice consequences -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazardous materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., prepared for Colorado Department of Transportation, Region 6., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice consequences -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazardous materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazards materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., prepared for Colorado Department of Transportation, Region 6., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice consequences -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazardous materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., prepared for Colorado Department of Transportation, Region 6., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice consequences -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazardous materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., prepared for Colorado Department of Transportation, Region 6., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice consequences -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazardous materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
The Northwest Corridor NEPA (National Environmental Policy Act) process was initiated in 2003 to consider the potential benefits, costs, and impacts of alternative transportation improvements in the northwest Denver Metropolitan area, between the western terminus of the Northwest Parkway in Broomfield County and the SH 58, I-70, and C-470 freeway systems to the south in Jefferson County. Due to lack of funding for construction in the foreseeable future and incomplete consensus among local governments, the NEPA process was ceased., Preface -- List of abbreviated terms -- Executive summary -- Purpose and need -- Alternatives -- Transportation -- Affected environment, environmental consequences, and mitigation measures -- Land use and zoning -- Social conditions -- Environmental justice -- Economic conditions -- Right-of-way -- Air quality -- Noise -- Water resources and water quality -- Wetlands -- Identification of base floodplains, 100-year floodplains and regulatory floodways -- Vegetation, wildlife, and threatened, endangered, and state sensitive species -- Visual character -- Historic and archaeological resources -- Paleontological resources -- Hazards materials -- Utilities -- Parks and recreational areas -- Farmland -- Geology, soils, and mineral resources -- Construction impacts -- Energy -- Relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity -- Irreversible and irretrievable commitment of resources -- Cumulative effects summary -- Potential regulatory permits -- Summary of potential impacts -- Summary of suggested mitigation measures and residual impacts -- Section 4(f) evaluation -- Agency and public involvement -- Public coordination -- List of preparers -- Glossary -- Index -- Appendix A, Noise model receiver maps and data table -- Appendix B, Iterative process of developing, screening, and refining alternatives based on evaluation criteria and project goals -- Appendix C, Agency correspondence., Cover title., "July 2008."
