On February 26, 2009, in Minute Order 111703, the Texas Transportation Commission determined that the proposal submitted by LBJ Infrastructure Group (formerly LBJ Development Partners) provides the apparent best value to TxDOT.

As part of the original planning process, four public hearings were held for the I-635 Managed Lanes Project - one for the West Section, two for the Loop 12/I-35E Section and one for the I-635/US 75 Interchange (the High Five).

• The I-635 West Section Public Hearing was held on June 5, 2003. On April 29, 2004, the Federal Highway Administration issued a Finding of No Significant Impact (FONSI) for the West Section.
• The Loop 12/I-35E Public Hearings were held on August 19 and 20, 2002. The Federal Highway Administration issued a Finding of No Significant Impact (FONSI) for the Loop 12/I-35E Section on December 11, 2002.
• The I-635/US 75 interchange Public Hearing was held on August 19, 1992. The Federal Highway Administration issued a Finding of No Significant Impact (FONSI) for the I-635/US 75 interchange on October 22, 1993.

In early 2006, TxDOT initiated modifications to the originally approved designs in the originally approved documents. The changes involve modifying the construction limits of the subsurface Managed High Occupancy Vehicle (HOV) Lanes. As presented in the original EA, the subsurface Managed HOV Lanes would have been constructed with a combination of open cut, cut and cover, and mined tunnel construction methods. The design modifications involve shifting the limits of each construction method and implementing a Managed HOV Lane System that is compatible with the RTC's, regional policy concerning Managed Lanes.

For the I-635/I-35E interchange portion of the project, there are only minor design modifications to the location of the proposed design from Loop 12/Northwest Highway to the I-635/I-35E interchange to incorporate existing interchanges. Instead, the modifications include operating the proposed direct connection ramps as interim Managed HOV Lanes until the I-35E/I-635 interchange is fully constructed.

Modifications to the I-635/US 75 interchange are provided to improve operational efficiency by providing entrance and exit ramps for the managed HOV lanes west of US 75 and the Interim HOV lanes east of US 75.

The revised managed HOV lanes configuration does not alter the amount of required right-of-way, displacements, or relocations stated in the original 2002 and 2004 EAs.

TxDOT has received notice from the Federal Highway Administration (FHWA) that they have reviewed the Environmental Assessments (EA) Re-evaluations for the design and operational modifications that have occurred since the original issuance of the FONSI for the I-635 West Section and the Loop 12/I-35E Section and that the original findings remain valid. In addition, a Categorical Exclusion was obtained for operational improvements that have occurred since Federal Highway Administration issued a FONSI for the I-635/US 75 interchange in October 1993. The public meeting for these changes was held on November 16, 2006.

The notices from FHWA were received by TxDOT on June 19, 2008, June 20, 2008 and June 24, 2008 for the I-635/US 75 Interchange, I-635 West Section and the Loop 12/I-35E Section, respectively.

Re-Evaluated Design Schematic - November 2007

Select Document to View ROADWAY PLAN - IH 35E FROM SPUR 482 TO LOMBARDY LANE ROADWAY PLAN - IH 35E FROM LOMBARDY LANE TO MANANA ROADWAY PLAN - IH 35E FROM MANANA TO CROWN ROAD ROADWAY PLAN - IH 35E & IH 635 INTERCHANGE ROADWAY PLAN - IH 35E NORTH OF IH 635 PROFILE - IH 635 FROM LUNA ROAD TO EAST OF DENTON DRIVE PLAN & PROFILE - IH 635 FROM EAST OF DENTON DRIVE TO EAST OF WEBB CHAPEL ROAD PLAN & PROFILE - FROM EAST OF WEBB CHAPEL ROAD TO EAST OF MIDWAY ROAD PLAN & PROFILE - FROM EAST OF MIDWAY ROAD TO EAST OF PRESTON ROAD PLAN & PROFILE - FROM EAST OF PRESTON ROAD TO WEST OF COIT ROAD PROFILE - IH 635 GENERAL PURPOSE LANES PROFILE - IH 635 GENERAL PURPOSE LANES PROFILE - IH 635 GENERAL PURPOSE LANES & DIRECT CONNECTORS PROFILE - IH 635 MANAGED LANES PROFILE - IH 635 MANAGED LANES PROFILE - IH 635 MANAGED LANES PROFILE - IH 635 RAMPS & DIRECT CONNECTORS PROFILE - IH 635 RAMPS PROFILE - IH 635 RAMPS, IH 635 CROSS STREETS & IH 35E RAMPS PROFILE - IH 635 EB FRONTAGE ROAD PROFILE - IH 635 EB FRONTAGE ROAD PROFILE - IH 635 WB FRONTAGE ROAD PROFILE - IH 635 WB FRONTAGE ROAD PROFILE - DIRECT CONNECTORS

Re-Evaluated Design Schematic - Managed HOV Lanes Alternative 2 – November 2007.

Select Document to View PLAN & PROFILES - FROM EAST OF WEBB CHAPEL ROAD TO EAST OF MIDWAY ROAD PLAN & PROFILES - FROM EAST OF MIDWAY ROAD TO EAST OF PRESTON ROAD PROFILE - IH 635 MANAGED LANES PROFILE - IH 635 MANAGED LANES PROFILE - IH 635 RAMPS PROFILE - IH 635 EB FRONTAGE ROAD PROFILE - IH 635 EB FRONTAGE ROAD PROFILE - IH 635 WB FRONTAGE ROAD PROFILE - IH 635 WB FRONTAGE ROAD

Provided below are the approved environmental re-evaluation documents for the I-635 managed HOV lanes project. To download a file, click on the specific document link and when it loads select ‘Save a Copy' on the Adobe Acrobat toolbar.

FONSI Re-Evaluation, Interstate Highway 635 from Luna Road to US 75- June 2008

Select Document to View Title Page & Table of Contents Page 1-13 Page 14-27 Page 28-33 Page 34-41 Page 42-50 Page 51-62 Page 63-74 Page 75-85 Appendix A Part 1 Appendix A Part 2 Appendix A Part 3 Appendix A Part 4 Appendix A Part 5 Appendix B Appendix C Appendix D Appendix E

Re-evaluation of the Environmental Assessment and FONSI for the Loop 12 / IH 35E Corridor: From Spur 408 to IH 635 - June 2008

Select Document to View Title Page & Table of Contents Page 1-45 Page 123-140 Page 46-98 Page 99-122 Appendix A Part 1 Appendix A Part 2 Appendix A Part 3 Appendix A Part 4 Appendix A Part 5 Appendix B Part 1 Appendix B Part 2 Appendix C Appendix D Appendix E Part 1 Appendix E Part 2 Appendix F Appendix G Appendix H & I

Categorical Exclusion, IH 635/US 75 Interchange, Operational Improvements - June 2008

Select Document to View Title Page & Table of Contents Page 1-30 Page 31-42 Page 43-51 Page 52-67 Appendix A Appendix B Figure 6 Figure 7a-7h Figures 1-5

Provided below are the approved environmental documents for the I-635 Managed Lanes Project. To download a file, click on the specific document link and when it loads select ‘Save a Copy' on the Adobe Acrobat toolbar.

IH635 From Luna Road to US 75 Environmental Assessment - April 2004

Select Document to View Cover Sheet & Table of Contents Section 1 Section 2 Section 3 Section 4 - Part 1 Section 4 - Part 2 Section 4 - Part 3 Section 4 - Part 4 Section 5 & 6 Certifications Public Hearing Summary & Analysis-Recommendations Public Hearing Text - Part 1 Public Hearing Text - Part 2 Public Hearing Text - Part 3 Public Hearing Text - Part 4 Public Hearing Verbal & Written Comments & Reponses Appendix A - Figures - Part 1 Appendix A - Figures - Part 2 Appendix A - Figures - Part 3 Appendix B - Exhibits Appendix C - Proposed Staging Areas Appendix D - Suggested Replacement Trees Appendix E - Jurisdictional Waters Appendix F - Agency Coordination Letters Appendix G - Programmed Congestion Management Sys. Projects Appendix G - Suggested Replacement Trees Appendix H - Acronym List

Loop 12-IH35E Corridor Environmental Assessment - December 2002

Select Document to View Cover Sheet & Table of Contents Section 1 Section 2 - Part 1 Section 2 - Part 2 Section 3 - Part 1 Section 3 - Part 2 Section 3 - Part 3 Section 3 - Part 4 Section 4 & 5 Public Hearing Documentation Appendix Table of Contents Appendix A - Part 1 Appendix A - Part 2 Appendix B, C, D, & E Appendix F & G Appendix H Appendix I - Part 1 Appendix I - Part 2 Appendix I - Part 3 Appendix I - Part 4 Appendix I - Part 5 Appendix I - Part 6 Appendix I - Part 7 Appendix J, K, & L Appendix M

US75-IH635 Interchange Environmental Assessment Vol 1 - February 1993

Select Document to View Part 1 Part 2

US75-IH635 Interchange Environmental Assessment Vol 2 - February 1993

Select Document to View Part 1 Part 2