Virginia Department of Transportation (VDOT) has conducted multiple traffic and environmental studies along the I-495 corridor prior to 495 NEXT. Find links to many of these studies below.
| Previous Study Documents |
|
Environmental Study Memorandum I-495 and Route 267/Dulles Interchange (Nov. 2009) (PDF, 5.2MB)
|
|
IJR Main Report – I-495 and Route 267/Dulles Toll Road (Nov. 2009) (PDF, 2MB)
-
IJR FHWA Approval and Signature Pages - (PDF, 345KB)
-
IJR Cover Sheet – List of Appendices (PDF, 278KB)
-
IJR Appendix A – Report Figures (PDF, 81MB)
-
IJR Appendix B – Environmental Compliance Documentation (PDF, 1MB)
-
IJR Appendix C – Excerpts from MWCOG – National Capital Region Transportation Board Report (2009): Traffic Quality on the Metropolitan Washington Area Freeway System and Existing Traffic Conditions Aerial Photographic Survey (2008) (PDF, 26MB)
-
IJR Appendix D – Relationship to Other Highway Improvement Plans and Programs (PDF, 64KB)
-
IJR Appendix E – 30% Design Plans (PDF, 41.4MB)
-
IJR Appendix F – Letters of Commitment from VDOT / MWAA / Fairfax County (PDF, 1.5MB)
-
IJR Appendix G – Methods and Assumptions for Traffic Analysis and Calibration Memo (PDF, 600KB)
-
IJR Appendix H – HCS Analysis Output (PDF, 36.8MB)
-
IJR Appendix I – Preliminary Signing Plan (PDF, 9MB)
|
|
I-495 Capital Beltway Study Record of Decision (June 2006) (PDF, 2MB)
|
|
I-495 Capital Beltway Study Final Environmental Impact Statement (April 2006) (PDF, 20.2MB)
|
|
I-495 Capital Beltway Study Information Meeting History Summary (June 2004) (PDF, 1.2MB)
|
