Streets: Perform general heavy laboring duties in assisting skilled and semi-skilled workers to remove trees, mix and pour cement, lay asphalt, patch streets, install and repair water and sewer lines, clear culverts, drains, roads and ditches, maintain park facilities, mow grass, clear weeds and brush, rake and pack leaves and debris, etc. The listed examples may not include all duties found in this class): Perform required labor involved in construction and maintenance projects as part of a crew, including pavement cutting, ditch digging, manhole and line cleaning, main and pipe repair, laying and backfilling, raising old manhole covers and catch basins to road level for street reconstruction.