Carolina Crossroads:
I-20/26/126 Corridor Improvement Project

Phase 2 - Broad River Road at I-20 Interchange

The South Carolina Department of Transportation (SCDOT), in cooperation with the Federal Highway Administration (FHWA), is proposing improvements to the interstate corridor of I-20/26/126, including the system interchanges at I-20/I-26 and I-26/I-126 in Lexington and Richland Counties. These improvements are proposed to increase mobility and enhance traffic operations by reducing existing traffic congestion within the I-20/26/126 corridor, while accommodating future traffic needs. The corridor's approximately 14 miles of mainline interstate include I-26 from Exit 101 - Broad River Road (US 176) to east of the Saluda River, I-20 from the west of the Saluda River to west of the Broad River, and I-126 from I-26 to east of the interchange with Colonial Life Boulevard. The project website is at www.SCDOTcarolinacrossroads.com.

In general, Phase 2 consists of reconstruction of the Broad River Road at I-20 interchange and a portion of the I-20 widening east of the I-20/I-26 interchange.

Request for Proposals

Notice of Award (Posted 10/14/21)
Bid Summary Report (Posted 11/08/21)
Request for Proposals - Addendum 6 (Posted 05/27/21)
Notice to Proposers - Addendum 6 (Posted 05/27/21)
Request for Proposals - Addendum 5 (Posted 05/19/21)
Notice to Proposers - Addendum 5 (Posted 05/19/21)
R4 Non-Confidential Questions and Responses (Posted 05/21/2021)
Request for Proposals - Addendum 4 (Posted 05/07/21)
Notice to Proposers-Addendum 4 (Posted 05/07/21)
Request for Proposals - Addendum 3 (Posted 04/19/21)
Notice to Proposers-Addendum 3 (Posted 04/19/21)
Request for Proposals - Addendum 2 (Posted 03/18/21)
Notice to Proposers-Addendum 2 (Posted 03/18/21)
Request for Proposals - Addendum 1 (Posted 01/21/21)
Notice to Proposers-Addendum 1 (Posted 01/21/21)
RFP (Final without Revisions Highlighted) (Posted 12/03/2020)
RFP (Final with Revisions Highlighted) (Posted 12/03/2020)
RFP for Industry Review (Posted 10/01/2020)

Request for Qualifications

Short Listed Design-Build Teams (Posted 09/25/2020)
SOQ Submitters List (Posted 12/04/2020)
Request for Qualifications Questions and Answers (Posted 08/07/2020)
Notice to Proposers-RFQ-Questions (Posted 08/07/2020)
Request for Qualifications - Addendum 1 (Posted 08/04/2020)
Notice to Proposers - Addendum 1 (Posted 08/04/2020)
Request for Qualifications (Posted 07/15/2020)

Notice to Potential Proposers

Phased Construction Map and Schedule (Posted 12/03/2020)
Project Phasing Plan (Posted 10/1/19)

Attachment B - Supplemental Project Design Criteria

Construction

  1. Quality Assurance Program – FINAL (10/01/20)

Environmental

  1. Carolina Crossroads FEIS (07/06/20)
  2. Carolina Crossroads FEIS ROD & Summary (07/06/20)
  3. R1 Carolina Crossroads FEIS Appendices (11/20/20)
  4. Impact and Mitigation Tracking Spreadsheet (10/01/20)
  5. Approved_CCR_Re-evaluation (10/01/20)
  6. CCR Sustainability Action Plan (11/20/20)
  7. CCR Recycled Form Example (10/01/20)
  8. CCR Recycled Materials Summary Example (10/01/20)
  9. 401 Water Quality Certification (10/01/20)
  10. CCR Individual Permit Approval (10/01/20)
  11. Environmental_Compliance_Plan_Template (11/20/20)
  12. CCR_Reevaluation_10-29-2020 (11/20/20)
  13. Phase 1 ESA (03/18/21)

Geotechnical

  1. Geotechnical Subsurface Data Report (10/01/20)
  2. Field Testing Data (10/01/20)

Hazardous Materials

  1. CCR Phase 2 Bridges (10/01/20)

Hydrology

  1. Toe Ditch Detail (10/01/20)
  2. SWPPP Checklist (10/01/20)
  3. R2 CCR Phase 2 Video Pipe Inspection Summary (04/19/21)
  4. SC-UH-Method-Resources (03/18/21)
  5. SCDOT-Spreadsheet_SC-Synthetic-UH-Method_30-July-2020 (03/18/21)

Pavement

  1. Pavement Design Traffic (10/01/20)
  2. Requirements for Pavement ATC Submittals (10/05/20)

Right of Way

  1. Project Right of Way Plans (11/20/20)
  2. May 18 2021 Right of Way Certificate with holdoffs (05/19/2021)
  3. May 4 2021 Moving Items_Removal and Disposal_Fencing and UST Quantities (05/07/2021)
  4. May 18 2021 Instruments and Commitments (05/19/2021)

Roadway

  1. Diverging Diamond Interchange Criteria (10/01/20)
  2. Fence_Location (10/01/20)
  3. CCR_ROW_Label (11/20/20)
  4. P039719 Design Exception with Attachments FHWA Approval (03/18/20)

Structures

  1. Rigid Barrier Adjacent to Retaining Wall (10/01/20)
  2. Revisions to SCDOT Seismic Design Specifications for Highway Bridges (10/01/20)
  3. R3_Noise Barrier Wall Design Criteria (04/19/21)
  4. Design Criteria for Box Culverts and Box Culvert Extensions (10/01/20)
  5. R1_Roadway Structure Plan Preparation Requirements (11/20/20)
  6. Post Tensioning Special Provision Instructions (10/01/20)
  7. Draft SCDOT Bridge Inspection Guidance Document (10/01/20)
  8. Structural and Utility Shop Drawing Review Process (05/19/21)

Surveys

  1. Broad River Mobile LiDAR1 (11/20/20)
  2. Broad River Mobile LiDAR2 (11/20/20)

Traffic

  1. I-20-26-126 IMR Approval Memorandum (07/06/20)
  2. Carolina Crossroads Appendix E Interchange Modification Report (07/06/20)
  3. Synchro 10 Defaults (10/01/20)
  4. Traffic Signals Plan Preparation Requirements (10/01/20)
  5. SCDOT IT Services PIF - Signals (10/01/20)
  6. SCDOT IT Services PIF - Signals (10/01/20)
  7. Sign Barcode Form (10/01/20)
  8. SCDOT Supplemental Specifications for Roadway Lighting (10/01/20)
  9. Overhead Sign Lighting Spec (10/01/20)
  10. Conceptual Signing Plan for Phase 2 20200729 (10/01/20)
  11. FHWA-SCDOT IJR and IMR Requirements_20200831 (10/01/20)
  12. ITS FOC Sever Locations (12/03/20)
  13. Traffic Shop Plan Review Process (05/19/21)

Utilities

  1. Underground and above ground utility map November 15 2018 (10/01/20)
  2. u849pp-2d_STV (10/01/20)
  3. Transmission 3D_STV (10/01/20)
  4. R1 City of Columbia (03/18/21)
  5. MCI-Verizon (11/20/20)
  6. Century Link_LUMEN (12/03/20)
  7. Charter Spectrum (12/03/20)
  8. R1 Segra (03/18/21)

Project Information Package

Environmental

  1. Phase 1 ESA (07/24/20)
  2. Stream Wetland CADD (10/01/20)
  3. 2016 CCR JD Approval (with mapping) (10/01/20)
  4. 2019 CCR JD Revision & Approval (10/01/20)
  5. CCR__TNMfiles_for_Re-Eval_7-29-20 (10/01/20)
  6. Permit_Plan_CAD (11/20/20)
  7. Final_TNM_All_for_FONSI_7-27-20 (10/01/20)
  8. Barrier_R_TNM_updates (11/20/20)

Geotechnical

  1. Geotechnical Base Line Report (03/09/20)
  2. Field Testing Data - All Phases (11/20/20)

Hydrology

  1. R1 Stormwater_Management_Design_Report and Appendices (04/19/21)
  2. Phase 2 Video Pipe Inspections (10/01/20)
  3. SCDHEC Permitting Time Chart (10/01/20)
  4. Phase 2 Hydraulic Information (01/21/21)
  5. Additional Video Pipe Inspection Reports (04/19/2021)
  6. Additional Video Pipe Inspections (10 GB) (04/19/2021)

Pavement

  1. 1. SCDOT CCR GPR Report_S&ME (11/20/20)
  2. GPR Data (11/20/20)
  3. GPR Core locations (11/20/20)
  4. I-20 GPR Data (01/14/21)

Right of Way

  1. P027662 Plans (11/20/20)

Roadway

  1. Roadway CAD 2020-11-13 (11/20/20)
  2. Modified Selected Alternative 2020-11-02 (11/20/20)
  3. Phase 3 Profiles (11/20/20)

Structures

  1. Bridge SI&A Reports (07/24/20)

Survey

  1. 2009 Base Mapping (03/09/20)
  2. CCR Target Information (07/06/20)
  3. 38169 2009 dat tin (07/06/20)
  4. US176_I-20 (11/20/20)
  5. Additional Survey Drainage Base Map (11/20/20)
  6. I-20 LiDAR LAS (11/20/20)
  7. I-20_LiDAR DGN (11/20/20)

Traffic

  1. Traffic File Disclaimer (10/01/20)
  2. MSA Transmodeler Files 200917 (10/01/20)
  3. Exit 65 Synchro Files (10/01/20)
  4. Carolina Crossroads Phase 2 Conceptual Lighting Plan (10/01/20)
  5. Crash Data 64-66 (11/23/20)
  6. Transmodeler Outputs and Density Tables (12/03/20)
  7. Existing Overhead Sign Layout (12/03/20)
  8. Concept Signing_Phase 2_CADD (05/19/21)

Utilities

  1. CCR-Ph2_Utility_Technical_Report_09-30-20 (10/01/20)
  2. City of Columbia (10/01/20)
  3. U-Sheets (11/20/20)
  4. R1 Utility Report Appendix (01/21/21)
  5. Transmission 3D_STV (01/21/21)
  6. Additional Utility CAD (01/21/21)
  7. R1 Charter Communications (05/19/21)
  8. LUMEN (03/18/21)
  9. SEGRA (03/18/21)
  10. MCI-Verizon (03/18/21)
  11. CERTIFICATION OF PRIOR RIGHTS_Synergy_04-14-21 (04/19/21)

Proposal Evaluation Committee Meeting

A Carolina Crossroads Phase 2 Technical Proposal Evaluation Team Meeting will be held on July 20, 2021 - July 22, 2021 at 8:30 AM via WebEx.

The following is the WebEx login information:

Tuesday, July 20, 2021 8:30AM
Meeting number (access code): 172 533 9565
Password: GhAzgK8UM66
https://scdot.webex.com/scdot/j.php?MTID=m31b4348ce4af6b4f75a9021bf6fef135

Join by phone
+1-415-655-0001 US Toll
Access code: 172 533 9565

Evaluation Committee Meeting

Proposal Evaluation Committee Meeting

A Carolina Crossroads Phase 2 Technical Proposal Distribution Team Meeting will be held on June 3, 2021 at 9:00 AM via WebEx.

The following is the WebEx login information:

Thursday, June 3, 2021 9:00AM
Meeting number: 1728 37 5909
Password: bBykY69tHw3
https://scdot.webex.com/scdot/j.php?MTID=m1b6a594896c24bd8a4628eb5e08b5fc0

Join by phone
+1-415-655-0001 US Toll
Access code: 1728 37 5909

Statement of Qualifications Evaluation Team Meetings

A Carolina Crossroads Phase 2 - Broad River Road at I-20 SOQ Distribution Meeting will be held on August 13, 2020 at 9:00 AM.

The following is the WebEx login information:

Thursday, August 13, 2020 9:00 am
Meeting number: 160 355 8537
Password: EePPTSuh224
https://scdot.webex.com/scdot/j.php?MTID=mf4dc69b307ca87c6074cfb9134e76894

Join by phone
+1-415-655-0001 US Toll
Access code: 160 355 8537

Evaluation Committee Meeting

Notice to Parties Interested in Providing Design Build Services

Qualifications and/or proposals from any contracting entity must utilize the new ProjectWise electronic proposal submission system. The following information describes the process that teams should follow to access the SCDOT ProjectWise environment for proposal submissions and their respective project data using the new system. Please use this ProjectWise Account Setup & Requirements link to set up accounts.