US 1 over I-20 Interchange Improvement

Lexington County

The project includes the replacement of the US 1 bridge over I-20 in Lexington County. This project also includes any associated roadway work to tie US 1 and interstate ramps to the new bridge along with any necessary interchange improvements.

Request for Proposals

Notice of Award (05/29/20)
Bid Summary Report (04/20/20)
Notice to Proposers - Addendum 7 (04/13/20)
RFP (Final with Addendum 7) (04/13/20)
Notice to Proposers - Addendum 6 (03/18/20)
RFP (Final with Addendum 6) (03/18/20)
Notice to Proposers - Addendum 5 (02/25/20)
RFP (Final with Addendum 5) (02/25/20)
Notice to Proposers - Addendum 4 (01/10/20)
RFP (Final with Addendum 4) (01/10/20)
R1 Notice to Proposers-Addendum 3 (11/26/19)
RFP (Final with Addendum 3) (11/21/19)
Notice to Proposers Addendum 2 (10/10/19)
RFP (Final with Addendum 2) (10/10/19)
Notice to Proposers Addendum 1 (09/18/19)
RFP (Final with Addendum 1) (09/18/19)
RFP (Final with Revisions Highlighted) (09/03/19)
RFP (Final without Revisions Highlighted) (09/03/19)
RFP for Industry Review (07/19/19)

Request for Qualifications

Short-listed Design-Build Teams (07/08/19)
SOQ Submitters List (05/29/19)
Notice to Proposers - RFQ Questions (05/23/19)
Request for Qualifications Questions and Answers (05/23/19)
Notice to Proposers - Addendum 1 (05/22/19)
Request for Qualifications - Addendum 1 (05/22/19)
Request for Qualifications (04/30/19)

Attachment B - Supplemental Project Design Criteria

Environmental

  1. Non Programmatic Categorical Exclusion (07/19/19)
  2. Alternative Alignment files (08/15/19)
  3. Re-Evaluation Non Programmatic Categorical Exclusion (02/12/21)

Hazardous Materials

  1. Asbestos (04/29/19)
  2. Lead Based Paint (04/29/19)

Hydrology

  1. Toe Ditch Detail (07/19/19)
  2. SWPPP Checklist (07/19/19)
  3. Pipe Recommendations (07/19/19)
  4. Concrete Ditch Reference (2.1.15) (08/19/19)

Right of Way

  1. Right of Way Data Sheet Template (11/21/19)

Roadway

  1. Fence_Locations (07/19/19)
  2. R2_US1 over I-20 Design Exception (09/09/19)
  3. Diverging Diamond Interchange Criteria (09/03/19)

Structures

  1. Rigid_Barrier_Adjacent_to_Wall (07/19/19)
  2. Revisions to the SCDOT Bridge Design Manual (Reinforcing) (07/19/19)
  3. Revisions to the SCDOT Bridge Design Manual (LRFD 8th Edition) (08/15/19)
  4. Revisions to SCDOT Seismic Design Specifications for Highway Bridges (07/19/19)
  5. Requirements for Seismic Design Summary Reports (07/19/19)
  6. R1 MASH Bridge Barrier Details (01/09/20)
  7. SCDOT_Bridge Load Rating Guidance Document_Final_Highlighted_20190605 (01/09/20)
  8. Sound Barrier Wall Design Criteria (07/19/19)
  9. Design Criteria for Box Culverts and Box Culvert Extensions (07/19/19)
  10. Non-bridge Structure Plan Preparation Requirements (07/19/19)
  11. R2 Horizontal Clearance Requirements Under New Overpasses (09/27/19)

Traffic

  1. FHWA-SCDOT IJR and IMR Requirements_6-20-2019 (07/19/19)
  2. ITS Standard Drawings (8/15/19)
  3. SCDOT Design Build LED Roadway Lighting Spec (12-6-18) (8/15/19)
  4. Existing Conditions Traffic Report (8/15/19)
  5. ITS Fiber Sever Location (8/23/19)
  6. Synchro 9 Defaults (8/23/19)
  7. Synchro 10 Defaults (8/23/19)
  8. 12-Hour I-20 Ramp Traffic Counts (10/10/19)
  9. Supplement to Existing Conditions Traffic Report Appendix G (10/10/19)
  10. R1 Median Work Area (01/22/20)

Project Information Package

Environmental

  1. Busbee Cemetery Shapefile (08/15/19)
  2. Jurisdictional Features (08/15/19)
  3. TNM Files (08/15/19)
  4. I-20 P027003 Widening Permit (10/10/19)

Geotechnical

  1. Geotechnical Baseline Report (7/19/19)
  2. Boring Logs (7/19/19)

Hydrology

  1. SCDHEC Permitting Time Chart (7/19/19)
  2. Pipe Inspection Report (7/19/19)
  3. Pipe Inspection Videos (7/19/19)
  4. R1. Hydrology and Hydraulics Report (01/08/20)
  5. Hydro Design Files (8/15/19)
  6. I-20 Widening Video Pipe Inspection Report (8/15/19)

Roadway

  1. Interchange Alternatives DGN Files (07/23/19)
  2. I-20 Widening P027003 DGN Files (09/27/19)
  3. I-20 Widening P027003 MOT DGN Files (10/10/19)
  4. I-20 Widening P027003 Signing DGN Files (01/08/20)

Structures

  1. Structure Inventory and Appraisal Report (4/30/19)

Survey

  1. P0307011_US1_I20_DB_Prep_Sanborn_Lidar_LAS files_190531 (7/19/19)
  2. P0307011_US1_I20_DB_Prep_Sanborn_Lidar_ Survey-Aerial files_190531 (7/19/19)
  3. P0307011_US1_I20_DB_Prep_STV_Ground Survey Files_190531 (7/19/19)

Traffic

  1. ITS Location Sketch (7/19/19)
  2. R1 HCS Files (10/10/19)
  3. Synchro Files (8/15/19)
  4. Transmodeler Files (8/15/19)
  5. Existing US 1 Sign Structure Shop Drawings (10/10/19)
  6. Median work area (01/10/20)

Utilities

  1. 1. Preliminary Utility Report (7/19/19)
  2. SUE Files (8/15/19)

Right of Way

  1. Property Data (10/10/19)

Procurement Documents

  1. SOQ Evaluation (06/28/24)
  2. Technical Proposal Evaluation (07/09/24)

Proposal Evaluation Committee Meeting

An US 1 over I-20 Interchange Improvement Technical Proposal Distribution Team Meeting will be held on March 31, 2020 at 8:50 AM via WebEx. The following is the WebEx login information:
Evaluation Committee Meeting (03/25/2020)

Via WebEx

Join by phone

  • +1-415-655-0001 US Toll
  • Access code: 474 145 026

Proposal Evaluation Committee Meeting

An US 1 over I-20 Interchange Improvement Technical Proposal Distribution Team Meeting will be held on March 2, 2020 at 10:00 AM at SCDOT Headquarters in Room 421.
Evaluation Committee Meeting (02/28/2020)

Statement of Qualifications Evaluation Team Meetings

An US 1 over I-20 Bridge Replacement SOQ Distribution Meeting will be held on May 29, 2019 at 2:00 pm at SCDOT Headquarters in Room 421.
Evaluation Committee Meeting (05/28/19)

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.