abstract angles appearance box-culverts bridging building concrete constructed construction construction-work culvert drainage holed open openings penetrations perspectives precast prefabricated preparation prepared preset readiness secure shadows stacked strength strong sunlight sunshine deep digging draining dug dug-up effort hole inside maintenance man run-off sand shovel shoveling shovelling soak-well tools uncover uncovered Underground water well work workman young-man beach-side circular contained cover covered drain dunes grasses grille heavy lid metal rocks rocky round sand-dunes sanitation solid vegetation architecture backdrop background design detail drive driveway grate gray grey grill gutter lattice lined lines metallic modern parallel pavement paving paving-bricks perspective shape steel texture urban waste architectural clean color colored colors colour coloured colours down floor floor-drain flooring marble marbling shower shower-recess tiled tiles grating grid rust rusty square squared squares asphalt circle dirty flood green grunge grungy industry iron manhole old pipe rain rough sewage sewer sidewalk sink stone storm street wet