Abstract: A micro-trench filling system and method of filling a trench holding a conduit is provided. The micro-trench filling system includes a trench formed into a covering surface, a conduit disposed in the bottom of the trench, a structural filler disposed on the conduit in the bottom of the trench, the structural filler made of a mesh material and having a plurality of openings; and a flowable filler poured into the trench and over the structural filler and surrounding the conduit. The flowable filler flows through the plurality of openings of the structural filler creating a bond between the flowable filler and structural filler, the flowable filler cures after a predetermined amount of time, and the structural filler and the flowable filler hold the conduit in place.