That road project replaced a small bridge that carries Gihon Road over a small creek just south of Dupont Road.
The project is now done with a new flat and straight section of highway in place just east of the where the old road was.
The new road makes the route slightly shorter. Since a half marathon is exactly 13.1 miles it means that that the distance lost of Gihon will be added elsewhere, changing some of the mile marker locations in the process. Starting and Finish lines will remain at the traditional locations.
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The new roadway.