Delemar Highway (SC-165) Widening and Improvement Project

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The Delemar Highway widening and improvement project will consist of widening 2.3 miles of Delemar Highway (SC 165) from two lanes to five lanes.

The project extends from Ashley Ridge High School to Carolinian Drive in unincorporated Dorchester County.

In order to improve safety, provide for alternative transportation modes along this corridor, and increase capacity, the following improvements are being made:

Construct two 12’ through travel lanes in each direction; construct a 15’ (typ.) center median between the travel lanes to accommodate turning traffic;

Construct auxiliary turning lanes; construct 4’ wide dedicated, marked bicycle lanes in each direction; construct a 8’ wide sidewalk to provide pedestrian access for Ashley Ridge High School;

Construct 6’ wide grassed shoulders for safety and emergency access; drainage improvements will include replacement of existing pipe culverts and driveway pipes, and construction of ditches;

And an existing double 8’ x 5’ box culvert will be extended 10 feet in order to accommodate the widened roadway.

The Contractor will deploy work zone traffic control practices in order to provide for safe maintenance of traffic throughout the project and utilization of sediment and erosion control measures in accordance with the permits secured for this project.

This project is funded through a grant from the South Carolina State Transportation Infrastructure Bank, CTC Funds, and Dorchester County Capital Funds.


Project Updates

Sunday, October 1, 2017 - All subgrade work has been completed, final surface course nearing completion and multi-use path subgrade work nearing completion. Final markings estimated to be completed by the beginning of December 2017.

Images of Delmar highway construction as of October 1 2017

Tuesday, July 14, 2017 - All utilities have been relocated, all drainage work has been completed and the last of subgrade work and the multi-use path are nearing completion.


Wednesday, March 8, 2017 - Muck and Fill and Subgrade work ongoing.

 Much and Fill March 2017


Monday, November 28, 2016 - Land Clearing Operations began.


Land Clearing