Project Updates

April 2010

The weight of the surcharge material has enabled the subsoils for the Segment 2A causeway, north of the Combahee River, to reach proper consolidation. Now, the surcharge material can be removed in preparation for paving.
In Segment 1 phase 1, the new wide shoulders and the binder course of asphalt has been placed on the old lanes of US 17 between the Combahee River Bridge and Jacob White Road. The surface or final layer is expected to be in place by late Spring 2010.
With subgrade in place for the new alignment of Big Estate Road, crews expect to place the first layer of asphalt by late Spring 2010. Once the new intersection aligning Big Estate and Jacob White Roads has been completed, a new traffic signal will be added to US 17.
Construction of the US 17/21 Gardens Corner Interchange is underway. The southern MSE wall for the new US 17 overpass has reached its final height. The northern MSE wall is now underway. A portion of the old US 21 northbound traffic lanes is are being re-worked to accommodate a new ramp from US 21 onto US 17 northbound and a new lane is being constructed, which will go under US 17 to a traffic circle for access to US 17 southbound. To complete this work, US 21 traffic has been reduced to a single lane in each direction on a portion of the old southbound lanes, the speed limit in the area has been reduced to 35 mph, and a temporary traffic light has been added at the US 17/21 intersection to assist traffic moving through the area. SCDOT appreciates the patience of all motorists traveling through the construction zone.
Congratulations to the entire US 17 ACE Basin Parkway Segments 1 & 2A project team on receiving a 2.99 out of 3.0 QMT score on project management and execution from the SCDOT auditors.

Project Approach

Check out the design renderings for the new Gardens Corner Interchange (US 17 and US 21).

Renderings - (1.0 Mb - PDF)

Interchange construction is underway. Go to the monthly Project Updates under Project Approach for more information and work progress.
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Project Updates
April 2010