33.42.00 Stormwater Conveyance
33.42.16 Stormwater Force Main Piping
33.42.11 Stormwater Gravity Piping 33.42.13 Stormwater Culverts 33.42.16 Stormwater Force Main Piping 33.42.23 Headwalls and Endwalls for Stormwater Piping 33.42.26 End Sections for Stormwater Piping 33.42.26.11 Aluminum End Sections for Stormwater Piping 33.42.26.13 Steel End Sections for Stormwater Piping 33.42.26.16 Corrugated Metal End Sections for Stormwater Piping 33.42.26.23 Concrete End Sections for Stormwater Piping 33.42.31 Stormwater Area Drains and Inlets 33.42.33 Stormwater Curbside Drains and Inlets 33.42.36 Stormwater Trench Drains 33.42.41 Gratings and Frames for Stormwater Drainage Inlets 33.42.41.11 Aluminum Gratings and Frames for Stormwater Drainage Inlets 33.42.41.21 Brass Gratings and Frames for Stormwater Drainage Inlets 33.42.41.31 Cast-Iron Gratings and Frames for Stormwater Drainage Inlets 33.42.41.41 Chrome Gratings and Frames for Stormwater Drainage Inlets 33.42.41.51 Steel Gratings and Frames for Stormwater Drainage Inlets 33.42.41.61 Fiberglass Gratings and Frames for Stormwater Drainage Inlets