Sierra Yoyo Desan Road Km 30-40 and Km67-68 upgrade. General nature of the work consisted of clearing and grubbing; borrow site development and remediation; roadway/drainage excavation and embankment construction; type D excavation; drainage; culvert removals, replacements and installations; supply and install geogrid and geotextile; grading and subgrade repairs and preparation, load, haul, place and compact 50mm crushed sub-base aggregate and 25mm high fines surfacing aggregate.

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