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

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.

Request for Qualifications

Cancellation of Design Build Procurement (Posted 05/2/19)
SOQ Submitters List (Posted 04/26/19)
Notice to Proposers Addendum 2 (Posted 04/15/19)
Request for Qualifications Addendum 2 (Posted 04/15/19)
Notice to Proposers Addendum 1 (Posted 03/13/19)
Request for Qualifications Addendum 1 (Posted 03/13/19)
Request for Qualifications (Posted 02/26/19)

Notice to Potential Proposers

Request for Information and Open Forum Meeting Notice (Posted 10/17/18)
Open Forum Meeting Presentation Slides (Posted 12/07/18)
Open Forum Meeting Sign in Sheets (Posted 12/07/18)

Attachment B - Supplemental Project Design Criteria

Construction

  1. Draft Quality Assurance Plan (02/26/19)

Geotechnical

  1. Figure - Front Slope Definition (02/26/19)

Hydraulics

  1. Toe Ditch Detail (02/26/19)
  2. SWPPP Checklist (02/26/19)
  3. Pier and Abutment Setback Detail (10 ft) (02/26/19)

Railroad

  1. CSX_ValMap_04144 (02/26/19)
  2. CSX_ValMap_04145 (02/26/19)
  3. CSXT Special Provisions (02/26/19)
  4. Exhibit A - Railroad Design Build Deliverable Format for CSXT (02/26/19)
  5. Public Projects Manual_07-31-2017 (02/26/19)
  6. Sample (compliant) COI (02/26/19)

Traffic

  1. std605-425-01_17_INGRESS (02/26/19)
  2. std605-425-02_17_EGRESS (02/26/19)

Hazardous Materials

  1. Broad River Rd. Bridge over I-20 (04/17/19)
  2. Browning Rd. Bridge over I-20 (04/17/19)
  3. Bush River Rd. Bridge over I-26 (04/17/19)
  4. Colonial Life Eastbound Bridge over Gracern and I-126 (04/17/19)
  5. Colonial Life WB Bridge over Gracern (04/17/19)
  6. I-26 Bridge over I-20 (04/17/19)
  7. I-26WB Bridge over I-126 (04/17/19)
  8. I-126WB Bridge to I-26EB (04/17/19)
  9. I-26 WB Bridge to Bush River Rd (04/17/19)
  10. ACM Investigation Report I-20 over CSX Railway (04/17/19)
  11. ACM Investigation Report I-20 over Saluda River (04/17/19)
  12. ACM Investigation Report I-26 over CSX Railway (04/17/19)
  13. ACM Investigation Report - I-26 over Saluda River (04/17/19)
  14. ACM Investigation Report - Bush River Rd over I-20 (04/25/19)
  15. ACM Investigation Report - Harbison Blvd. over I-26 (04/25/19)
  16. ACM Investigation Report - Piney Grove Rd. over I-26 (04/25/19)
  17. ACM Investigation Report - St. Andrews Rd. over I-26 (04/25/19)
  18. LBP Investigation Report- I-20 Bridge over CSX Railway (04/17/19)
  19. LBP Investigation Report- I-20 Bridge over Saluda River (04/17/19)
  20. LBP Investigation Report- I-26 Bridge over CSX Railway (04/17/19)
  21. LBP Investigation Report- I-26 Bridge over Saluda River (04/17/19)
  22. LBP Investigation Report - Bush River Rd. over I-20 (04/25/19)
  23. LBP Investigation Report - Harbison Blvd. over I-26 (04/25/19)
  24. LBP Investigation Report - Piney Grove Rd. over I-26 (04/25/19)
  25. LBP Investigation Report - St. Andrews Rd. over I-26 (04/25/19)

Project Information Package

Environmental

  1. DEIS_July2018 (02/26/19)
  2. Phase I ESAs (02/26/19)
  3. JD Approval Letter (02/26/19)
  4. Supporting CAD Files for August 2018 Public Hearing (03/07/19)

Geotechnical

  1. Geotechnical Base Line Report (02/26/19)




Hydraulics

  1. SCDHEC Permitting Time Chart (02/26/19)




Structures

  1. Structural Inventory and Appraisals (02/26/19)

Survey

  1. 2009_Survey-Mapping_Review (02/26/19)
  2. I-126_I-26_I-20_Aerial-Survey_DTM_2009 (02/26/19)
  3. I-126_I-26_I-20_Aerial-Survey_Mapping_2009 (02/26/19)
  4. Quail Hollow Boat Launch (02/26/19)
  5. Property Map 10-30-2018 (02/26/19)

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.