US 278 Corridor Improvements

Casting a Light on the Community's Transportation Future


Project Information

The South Carolina Department of Transportation (SCDOT) is proposing to make improvements to the US 278 corridor between Bluffton and Hilton Head Island, from Moss Creek Drive to Spanish Wells Road. The purpose of this project is to address structural deficiencies at the existing eastbound MacKay Creek bridge, to increase capacity, and reduce congestion along US 278 from Moss Creek Drive to Spanish Wells Road.

The eastbound Mackay Creek Bridge will be replaced; it was originally built in 1956 and is scheduled for replacement. Additional studies for potential improvements include:

  • Modifications to the remaining three bridges;

  • Improved access to Pinckney Island National Wildlife Refuge; and

  • Improved access to the C.C. Haigh, Jr. boat ramp.

Community involvement and communication will be a primary focus of the project to ensure successful development of the environmental process. Additionally, SCDOT will be working hand-in-hand with the Federal Highway Administration and Beaufort County. The project is to be funded using federal, state, and local funds.


Get Involved

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Community Impact Survey

We would like to learn more about you and your neighborhood. Please help us understand the issues in your community by completing the survey below. Your answers will help us better understand the concerns in your neighborhood and allow us to determine how the project may affect your community.


Public Information Meeting

A public information meeting will be held on Thursday, September 19, 2019, from 5:00 pm - 7:00 pm at the Boys & Girls Club of Hilton Head Island (151 Gumtree Rd, Hilton Head Island). This meeting will be conducted in an “open house” format, and there will be no formal presentation. Proposed roadway improvements (reasonable alternatives) will be presented at this meeting.


The proposed schedule is for the planning process and the completion of the Environmental Assessment. The project team is currently analyzing the range of alternatives and will present the reasonable alternatives to the public at the Public Information Meeting on September 19, 2019 and on the virtual public meeting which will run from September 19 - October 25, 2019.

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Submit a Comment


We value your input and would like to hear from you. Please use this form to submit a comment about the project.

The formal public comment period associated with the second Public Information has been extended until October 25, 2019. However, we welcome your comments throughout the project development process.

Name *

If you have questions or need assistance, please use the contact form.

Comments can also be emailed to, or mailed to:

Craig Winn, PE, SCDOT Program Manager
c/o South Carolina Department of Transportation
Lowcountry Regional Production Group
955 Park Street, Room 401
Columbia, SC 29202-0191

NOTE: Information provided, including name and address, will be published and is subject to disclosure under the Freedom of Information Act. Written comments will now be accepted until October 25, 2019.