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

Phase 3 - I-20/26 & I-26/126 System Interchanges, St. Andrews Road at I-26 Interchange, and Bush 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 3 consists of reconstruction of the I-20/I-26 system interchange, reconstruction of the I-26/I-126 system interchange, reconstruction of the I-26/St. Andrews Road interchange, reconstruction of the I-20/Bush River Road interchange, completion of widening of I-20 west of the I-20/I-26 interchange and widening of I-26 from just west of St. Andrews Road to the US-378 interchange.

Request for Proposals

Memo - Cancellation of CCR Phase 3 Procurement - Project ID P039720 (Posted 10/25/2023)
Request for Proposals - Addendum 12 (Posted 9/18/2023)
Notice to Proposers - Addendum 12 (Posted 9/18/2023)
Non-Confidential Questions and Responses Round 6 (Posted 9/18/2023)
Non-Confidential Questions and Responses Round 5 (Posted 9/18/2023)
Non-Confidential Questions and Responses Round 4 (Posted 9/18/2023)
Request for Proposals - Addendum 11 (Posted 9/14/2023)
Notice to Proposers - Addendum 11 (Posted 9/14/2023)
Non-Confidential Questions and Responses Round 5 (Posted 9/8/2023)
Notice to Proposers - Addendum 10 (Posted 8/31/2023)
Request for Proposals - Addendum 10 (Posted 8/31/2023)
Notice to Proposers - Addendum 9 (Posted 8/25/2023)
Request for Proposals - Addendum 9 (Posted 8/25/2023)
Notice to Proposers - Addendum 8 (Posted 8/15/2023)
Request for Proposals - Addendum 8 (Posted 8/15/2023)
Non-Confidential Questions and Responses Round 1 (Posted 8/11/2023)
Non-Confidential Questions and Responses Round 4 (Posted 8/11/2023)
Notice to Proposers - Addendum 7 (Posted 7/26/2023)
Request for Proposals - Addendum 7 (Posted 7/26/2023)
Non-Confidential Questions and Responses Round 1 (Posted 7/26/2023)
Non-Confidential Questions and Responses Round 3 (Posted 7/6/2023)
Notice to Proposers – Addendum 6 (Posted 6/8/2023)
Request for Proposals – Addendum 6 (Posted 6/8/2023)
Non-Confidential Questions and Responses for Final RFP Round 1,Final RFP Round 2, and RFPs for Industry Review 1, 2, and 3 (Posted 6/8/2023)
Notice to Proposers – Addendum 5 (Posted 5/23/2023)
Request for Proposals – Addendum 5 (Posted 5/23/2023)
Non-Confidential Questions and Responses for Final RFP Round 1,Final RFP Round 2, and RFPs for Industry Review 1, 2, and 3 (Posted 5/17/2023)
Notice to Proposers – Addendum 4 (Posted 5/3/2023)
Request for Proposals – Addendum 4 (Posted 5/3/2023)
Non-Confidential Questions and Responses for Final RFP, Addendum #1, Addendum #2, and RFPs for Industry Review 1, 2, and 3 (Posted 5/3/2023)
Notice to Proposers – Addendum 3 (Posted 3/31/2023)
Request for Proposals – Addendum 3 (Posted 3/31/2023)
Non-Confidential Questions and Responses for Final RFP, Addendum #1, Addendum #2, and RFPs for Industry Review 1, 2, and 3 (Posted 3/31/2023)
Notice to Proposers – Addendum 2 (Posted 3/17/2023)
Request for Proposals – Addendum 2 (Posted 3/17/2023)
Notice to Proposers – Addendum 1 (Posted 3/6/2023)
Request for Proposals – Addendum 1 (Posted 3/6/2023)
Non-Confidential Questions and Responses for Final RFP and RFPs for Industry Review 1, 2, and 3 (Posted 3/6/2023)
RFP (Final without Revisions Highlighted (Posted 2/15/2023)
RFP (Final with Revisions Highlighted) (Posted 2/15/2023)
Non-Confidential Questions and Responses for RFP for Industry Review #1 #2 and #3 (Posted 2/15/2023)
Non-Confidential Questions and Responses for RFP for Industry Review #1 and 2 (Posted 1/18/2023)
RFP for Industry Review #3
(Posted 1/18/2023)
RFP for Industry Review #2
(Posted 12/1/2022)
Non-Confidential Questions and Responses for RFP for Industry Review #1 (Posted 12/1/2022)
RFP for Industry Review #1
(Posted 11/1/2022)

Request for Qualifications

Short-listed Design Build Teams (Posted 11/30/2022)
SOQ Submitters List (Posted 10/21/2022)
Non-Confidential Questions and Responses (Posted 10/07/2022)
Request for Qualifications – Addendum 1 (Posted 10/07/2022)
Notice to Proposers – RFQ Addendum 1 (Posted 10/07/2022)
Request for Qualifications (Posted 9/15/2022)


Technical Provisions Attachments

TP TPA Number Revision Number Description Latest Revision Date
General 100-1 R7 Standards 9/14/2023
General 100-2 R3 Additional Information for the Basic Configuration 7/26/2023
General 100-3 R0 Road Design Reference Material for Consultant Prepared Plans for CCR Phase 3 1/18/2023
General 100-4 R0 Frontage Roads 1/18/2023
General 100-5 R1 I26 Main Rockland Road 1/18/2023
General 100-6 R0 Berryhill Road and Bush River Road at I20 1/18/2023
General 100-7 R0 2019 CCR Project Survey Control Summary 1/18/2023
General 100-8 R0 Stoop Creek Survey Files 6/8/2023
General 100-9 R0 Surveys for Tracts 126, 133, and 14 1/18/2023
Project Management 110-1 R4 Quality Assurance Program 9/18/2023
Project Management 110-2 R3 Structural and Utility Shop Drawing Review Process 9/14/2023
Project Management 110-3 R1 Traffic Shop Plan Review Process 1/18/2023
Project Management 110-4 R0 SCDOT's Comment Matrix Spreadsheet 5/3/2023
Project Management 110-5 R0 IQF Environmental Guidance Documents 8/15/2023
Third Party 111-1 R0 City of Columbia Municipal Agreement 3/31/2023
Third Party 111-2 R0 City of West Columbia Municipal Agreement 3/31/2023
Third Party 111-3 R0 CSX Railroad Agreement 5/23/2023
Utility 140-1 R5 AT&T Design and Construction Criteria 8/15/2023
Utility 140-2 R6 City of Columbia Design and Construction Criteria 8/15/2023
Utility 140-3 R5 Dominion Energy Gas Distribution Design and Construction Criteria 7/26/2023
Utility 140-4 R6 Enterprise Products Partners L.P. Design and Construction Criteria 9/18/2023
Utility 140-5 R4 LUMEN Design and Construction Criteria 7/26/2023
Utility 140-6 R5 MCI Design and Construction Criteria 9/18/2023
Utility 140-7 R5 SEGRA Design and Construction Criteria 9/18/2023
Utility 140-8 R6 South Carolina Department of Administration Design and Construction Criteria 9/18/2023
Utility 140-9 R5 Spectrum Southeast, LLC Design and Construction Criteria 7/26/2023
Utility 140-10 R6 South Carolina Water Utilities Design and Construction Criteria 9/18/2023
Utility 140-11 R0 Basemap of Existing Utilities (u849pp-2d STV) 11/1/2022
Utility 140-12 R2 Underground and Above Ground Utility Map 3/17/2023
Utility 140-13 R1 Phase 1 Utility RFC and As-Built Plans 7/26/2023
Utility 140-14 R2 Phase 2 Utility RFC Plans 8/15/2023
Utility 140-15 R1 I-20 Supplemental SUE Files 9/18/2023
Utility 140-16 R0 City of West Columbia Design and Construction Criteria 9/18/2023
Utility 140-17 R0 Town of Lexington Design and Construction Criteria 9/18/2023
Environmental 160-1 R0 Carolina Crossroads FEIS 11/1/2022
Environmental 160-2 R0 CCR FEIS ROD & Summary 11/1/2022
Environmental 160-3 R0 CCR FEIS Appendices 11/1/2022
Environmental 160-4 R2 Environmental Commitments 9/18/2023
Environmental 160-5 R0 CCR Individual Permit Approval 11/1/2022
Environmental 160-6 R0 401 Water Quality Certification 11/1/2022
Environmental 160-7 R0 404 Permit Conditions / 401 Water Quality Certification Permit Conditions 11/1/2022
Environmental 160-8 R1 USACE Permit Modifications 7/26/2023
Environmental 160-9 R0 Impact and Mitigation Tracking Spreadsheet 3/6/2023
Environmental 160-10 R0 CCR Project Study Area 11/1/2022
Environmental 160-11 R0 Environmental Compliance Plan Template 11/1/2022
Environmental 160-12 R0 CCR Recycled Form Example 8-11-20 11/1/2022
Environmental 160-13 R0 CCR Recycled Materials Summary Example 8-11-20 11/1/2022
Environmental 160-14 R0 Scenic Easement for Saluda River 11/1/2022
Environmental 160-15 R1 Phase I ESA's 08/31/2023
Environmental 160-16 R0 NEPA Re-Evaluations 11/1/2022
Environmental 160-17 R0 2019 CCR JD Revision & Approval 5/23/2023
Environmental 160-18 R0 CCR TNM Files 5/23/2023
Environmental 160-19 R0 Phase II ESA's for CCR Phase 3 7/26/2023
Environmental 160-20 R1 Permit Plan CAD 8/15/2023
Environmental 160-21 R0 CCR Bat Survey Report 9/14/2023
Environmental 160-22 R1 Clearing Moratorium Locations 9/18/2023
Roadway 200-1 R0 Diverging Diamond Interchange Criteria 11/1/2022
Roadway 200-2 R0 Fence Locations 11/1/2022
Roadway 200-3 R0 Phase 1 RFC Plans 3/6/2023
Roadway 200-4 R0 Phase 2 RFC Plans 3/6/2023
Roadway 200-5 R1 Pavement Marking Related Resurfacing Limits 9/18/2023
Roadway 200-6 R0 Standard Drawing Update - August 2023 9/14/2023
Pavement 400-1 R0 Pavement Design Traffic 11/1/2022
Maintenance of Traffic 600-1 R0 Construction Access Design Criteria 5/3/2023
Signing 650-1 R3 CCR Phase 3 Conceptual Signing Plan 7/26/2023
Signing 650-2 R0 Overhead Sign Lighting Spec 11/1/2022
Signals 675-1 R0 SCDOT IT Services PIF - Signals 11/1/2022
Signals 675-2 R0 Traffic Signals Plan Preparation Requirements 11/1/2022
Traffic Operations 680-1 R0 I20-26-126 IMR Approval Memorandum 11/1/2022
Traffic Operations 680-2 R0 Carolina Crossroads Appendix E Interchange Modification Report 11/1/2022
Traffic Operations 680-3 R0 Synchro 10 Defaults 3/6/2023
Traffic Operations 680-4 R0 Modified Selected Alternative Phase 1/Phase 2 Traffic Technical Report, June 2022 11/1/2022
Traffic Operations 680-5 R0 Interim Conditions TransModeler Files 11/2/2022
Traffic Operations 680-6 R0 TransModeler Parameters and Settings 11/2/2022
Traffic Operations 680-7 R0 Updated MSA TransModeler Files 2/15/2023
ITS 685-1 R0 ITS FOC Sever Locations 1/18/2023
Lighting 690-1 R1 SCDOT Supplemental Specifications for Roadway Lighting 5/3/2023
Structures 700-1 R1 Rigid Barrier Adjacent to Wall 8/31/2023
Structures 700-2 R0 Revisions to SCDOT Seismic Design Specifications for Highway Bridges 11/1/2022
Structures 700-3 R1 Noise Barrier Wall Design Criteria 1/18/2023
Structures 700-4 R0 Design Criteria for Box Culverts and Box Culvert Extensions 11/1/2022
Structures 700-5 R0 Roadway Structure Plan Preparation Requirements 11/1/2022
Structures 700-6 R0 Post Tensioning Special Provision Instructions 11/1/2022
Structures 700-7 R2 Complex Bridge Guidance Document 5/3/2023
Structures 700-8 R3 Bridge Rehab Requirements 9/14/2023
Structures 700-9 R0 Phase 1 Bridge RFC Plans 3/17/2023
Structures 700-10 R0 Phase 2 Bridge RFC Plans 3/17/2023
Structures 700-11 R0 Existing Bridge Data 5/23/2023
Structures 700-12 R0 Bridge Hanger Attachment 9/18/2023
Geotechnical 711-1 R1 Geotechnical Subsurface Data Report 7/26/2023
Geotechnical 711-2 R0 3-Point Acceleration Design Response Spectrum 11/1/2022
Geotechnical 711-3 R0 Vibration Monitoring SP 11/1/2022
Geotechnical 711-4 R0 Field Testing Data 11/1/2022
Geotechnical 711-5 R0 CCR Phase 1 Geotech Subsurface Data Report 2/15/2023
Geotechnical 711-6 R0 CCR Phase 2 Geotech Subsurface Data Report 2/15/2023
Geotechnical 711-7 R0 Acceptable Polymer Slurry Systems 3/17/2023
Hydrology 714-1 R0 Toe Ditch Detail 11/1/2022
Hydrology 714-2 R0 SWPPP Checklist 11/1/2022
Hydrology 714-3 R0 Abutment and Pier Setbacks 11/1/2022
Hydrology 714-4 R4 CCR Phase 3 Video Pipe Inspection Summary 3/17/2023
Hydrology 714-5 R0 SC UH Method Resources 11/1/2022
Hydrology 714-6 R0 SCDOT-Spreadsheet SC-Synthetic-UH-Method 30-July-2020 11/1/2022
Hydrology 714-7 R2 Clearing and Grubbing Plans 8/25/2023
Hydrology 714-8 R0 CCR Phases 1 & 2 Stormwater Management Design Report 5/23/2023
Hydrology 714-9 R1 CCR Phase 3 Video Pipe Inspections_I-126 1/18/2023
Hydrology 714-10 R1 CCR Phase 3 Video Pipe Inspections_I-20 1/18/2023
Hydrology 714-11 R1 CCR Phase 3 Video Pipe Inspections_I-26 1/18/2023
Right of Way 809-1 R6 Schematic Right of Way Plans 7/26/2023
Right of Way 809-2 R2 Moving Items Removal and Disposal Fencing and UST Quantities 9/18/2023
Right of Way 809-3 R3 Right of Way Certificate with holdoffs 9/14/2023
Right of Way 809-4 R4 Right of Way Instruments and Commitments 9/18/2023
Right of Way 809-5 R6 CCR ROW Label 7/26/2023
Right of Way 809-6 R5 Schematic ROW Alignments 6/8/2023
Right of Way 809-7 R0 Tract 629 to 628 Quitclaim 8/31/2023
Sustainability 900-1 R1 CCR Sustainability Action Plan-Phase 1 8-11-20 1/18/2023

Project Information Package

TP PIP Number Revision Number Description Latest Revision Date
General 100-1 R0 2009 Base Mapping 11/1/2022
General 100-2 R1 2009 CCR Target Information 1/18/2023
General 100-3 R0 Broad River Road 11/1/2022
General 100-4 R0 2009 Aerial Images 1/18/2023
General 100-5 R0 I20 Berryhill Bush River 11/1/2022
General 100-6 R0 Surveys for Tracts 126, 133, and 141 1/18/2023
General 100-7 R0 Basis of Design Report 11/1/2022
General 100-8 R0 Septic System Investigation Report, Tracts #329, 330, 337 and 338 1/18/2023
General 100-9 R1 As-Builts Contract ID 5154650 5/23/2023
General 100-10 R0 Surveys Routes S-273 Rockland Road_Woodlands Dr 1/18/2023
General 100-11 R0 38169 2009 dat tin 3/31/2023
General 100-12 R0 Draft Design Exceptions 3/31/2023
General 100-13 R0 P027003 I-20 Survey Data 5/23/2023
General 100-14 R1 CCR Phase 1 Construction Quality Management Plan 8/15/2023
General 100-15 R1 CCR Phase 2 Construction Quality Management Plan 8/15/2023
Third Party 111-1 R0 Dry Utility (Telecom) MOA Template 1/18/2023
Third Party 111-2 R0 Dry Utility (Gas) MOA Template 1/18/2023
Third Party 111-3 R0 Wet Utility MOA Template 1/18/2023
Utility 140-1 R0 CCR Phase 3 Utility Technical Report 3/17/2023
Utility 140-2 R0 CCR Phase 3 Utility Report Appendix 3/17/2023
Utility 140-3 R2 U-Sheets 3/17/2023
Utility 140-4 N/A CCR Phase 1 Utility Plans
No files at this time
Pending
Utility 140-5 R2 CCR Phase 2 Utility Plans 7/26/2023
Utility 140-6 R4 Encroachment Permits 9/18/2023
Utility 140-7 R0 Additional Utility CAD 2/15/2023
Utility 140-8 R0 SUE Supplemental Files 3/17/2023
Utility 140-9 R2 City of Columbia 8/31/2023
Utility 140-10 R0 AT&T 7/26/2023
Utility 140-11 R0 Dominion Energy Gas Distribution 7/26/2023
Utility 140-12 R1 Enterprise Products Partners L.P. 9/18/2023
Utility 140-13 R0 LUMEN 7/26/2023
Utility 140-14 R1 MCI 9/18/2023
Utility 140-15 R0 SEGRA 7/26/2023
Utility 140-16 R1 South Carolina Department of Administration 9/18/2023
Utility 140-17 R0 Spectrum Southeast, LLC 7/26/2023
Utility 140-18 R1 South Carolina Water Utilities 9/18/2023
Utility 140-19 R0 Town of Lexington 9/18/2023
Railroad 150-1 R0 CSX ValMap 04144 11/1/2022
Railroad 150-2 R0 CSX ValMap 04145 11/1/2022
Railroad 150-3 R0 CCR Phase 1 CSX Construction Agreement 7/26/2023
Environmental 160-1 R0 Stream Wetland CADD 11/1/2022
Environmental 160-2 R0 2016 CCR JD Approval (with mapping) 11/1/2022
Environmental 160-3 R0 2019 CCR JD Revision & Approval 11/1/2022
Environmental 160-4 R0 CCR TNM Files 11/1/2022
Environmental 160-5 R0 CCR Phase 3 Bridges 11/1/2022
Environmental 160-6 R0 Permit Plan CAD 3/31/2023
Environmental 160-7 R0 Phase I ESA's for CCR Phase 3 7/26/2023
Environmental 160-8 R1 Bat Survey Report - Appendices 9/14/2023
Roadway 200-1 R7 Roadway CADD 7/26/2023
Roadway 200-2 R5 Schematic Design 7/26/2023
Roadway 200-3 R2 Phase 3 Profiles 7/26/2023
Roadway 200-4 R2 CCR Phase 1 CAD Files 3/17/2023
Roadway 200-5 R2 CCR Phase 2 CAD Files 3/17/2023
Pavement 400-1 R0 SCDOT CCR GPR Report S&ME 2/15/2023
Pavement 400-2 R0 GPR Data 2/15/2023
Pavement 400-3 R0 GPR Core Locations 2/15/2023
Pavement 400-4 R0 CCR Phase 3 Shoulder Rideability 5/3/2023
Maintenance of Traffic 600-1 R0 Median Egress Standard Drawing 5/3/2023
Maintenance of Traffic 600-2 R0 Median Ingress Standard Drawing 5/3/2023
Signing 650-1 R0 Existing Overhead Signs 11/1/2022
Signing 650-2 R2 Conceptual Signing Phase 3 CADD 3/17/2023
Signing 650-3 R0 Sign Barcode Form 11/1/2022
Signing 650-4 R0 Example Signing Plans 11/1/2022
Signals 675-1 R0 Existing Signal Plans-Timings 2/15/2023
Traffic Operations 680-1 R2 Transmodeler Outputs and Density Tables 5/3/2023
Traffic Operations 680-2 R0 Crash Analysis 11/1/2022
Lighting 690-1 R2 Carolina Crossroads Phase 3 Conceptual Lighting Plan 5/3/2023
Structures 700-1 R0 Existing Bridge Data 3/6/2023
Structures 700-2 R0 Existing Stoop Creek Culvert Plans 9/14/2023
Structures 700-3 R0 Bridge Rehab Petrography 9/14/2023
Geotechnical 711-1 R0 Geotechnical Base Line Report 11/1/2022
Geotechnical 711-2 R0 Field Testing Data 11/1/2022
Geotechnical 711-3 R0 CCR Phase 1 Geotech Report 3/6/2023
Geotechnical 711-4 R0 CCR Phase 2 Geotech Report 3/6/2023
Geotechnical 711-5 R0 CCR Phase 1 Foundation Testing Results 7/26/2023
Geotechnical 711-6 R0 CCR Phase 2 Foundation Testing Results 7/26/2023
Geotechnical 711-7 R0 CCR Phase 1 As-Installed Timber Pile Ground Modification 8/15/2023
Hydrology 714-1 R0 SCDHEC Permitting Time Chart 11/1/2022
Hydrology 714-2 R0 CCR Phases 1 & 2 Stormwater Management Design Report 11/1/2022
Hydrology 714-3 R2 CCR Phase 3 Report and Appendices 3/6/2023
Hydrology 714-4 R0 Phase 3 Hydraulic Information 11/1/2022
Hydrology 714-5 R1 HEC-RAS 1/18/2023
Hydrology 714-6 R1 FEMA Data 1/18/2023
Hydrology 714-7 R1 CCR Phase 3 Video Pipe Inspections_I-126 1/18/2023
Hydrology 714-8 R0 2015 USGS HWM Saluda 07 23 20 11/1/2022
Hydrology 714-9 R1 CCR Phase 3 Video Pipe Inspections_I_20 1/18/2023
Hydrology 714-10 R1 CCR Phase 3 Video Pipe Inspections_I_26 1/18/2023
Hydrology 714-11 R1 Draft Clearing and Grubbing Plans 8/15/2023
Right of Way 809-1 R6 P027662 ROW Plans 7/26/2023
Right of Way 809-2 R0 Additional Information for Parcels 8/15/2023

Statement of Qualification Distribution Meeting

A Carolina Crossroads: I-20/26/126 Corridor Improvement Project Phase 3 SOQ Distribution Meeting will be held on October 21, 2022 at 9:00 AM at 317 Zimalcrest Drive. Columbia, SC 29210.
Distribution of SOQs Meeting (10/17/2022)

Statement of Qualification Evaluation Meeting

A Carolina Crossroads: I-20/26/126 Corridor Improvement Project Phase 3 SOQ Evaluation Meeting will be held on November 16-17, 2022 at 8:00 AM at 317 Zimalcrest Drive. Columbia, SC 29210.
Evaluation of SOQs Meeting Phase 3 Agenda (11/14/2022)

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.

Technical Proposals Distribution Meeting

A Carolina Crossroads: I-20/26/126 Corridor Improvement Project Phase 3 Technical Proposals Distribution Meeting will be held on Tuesday, October 3, 2023 at 10:00 am via WebEx.

The following is the WebEx login information:

Join on your computer or mobile app
Click here to Join the Meeting

Meeting ID: 2319 366 2880
Passcode: u2CPjkkh2Y7

Join by video system
Dial 23193662880@scdot.webex.com
You can also dial 173.243.2.68 and enter your meeting number.

Join by phone
+1-415-655-0001 US Toll
Access code: 231 936 62880

Distribution of Technical Proposals Meeting Phase 3