Doing Business with South Carolina Department of Transportation

Business Development & Special Programs

"C" Program


Contractors/Construction Lettings

Consultants/Professional Services

Local Public Agency Administration




Stewardship & Oversight

Surplus Property

Technical Documents

Construction Extranet

SCDOT's Construction Extranet web site provides vendors (i.e., Prime Contractors, Sub-Contractors and other vendors) a way to download and view construction plans for upcoming lettings. It also provides vendors a means of communicating their desire to receive or send quotes to other vendors for upcoming construction projects. In addition, for active prime contractors, the site provides a way to download and upload SiteXchange files.

For existing users click the login button below.

A few helpful tips for logging into the Extranet site are listed below. If you are still having trouble please fill out the form below and someone will assist you as soon as possible.

  • Remember that passwords are case sensitive (i.e., check caps lock)
  • The Construction Extranet works best with Internet Explorer 5.5 Service Pack 2 or later
  • High speed broadband Internet connection is highly recommended

If you are still having trouble logging in or have questions on using the Construction Extranet, please Email Us and someone will contact you as soon as possible.

To request access, please Email Us. Please request only one account per company. This account can be shared among employees within that company. After you Email Us, you must also complete and return a W9 Form (PDF 224 Kb). Please allow 7-10 business days for account creation. The form can be faxed to 803-737-2264 or mailed to:
Contract Administration
955 Park Street
Columbia, SC 29201

Related Links:
Letting Schedule
Current Lettings
Tentative Lettings

To view PDF files, you will need Adobe Acrobat Reader