31 00 00 Earthwork 31 10 00 Site Clearing 31 20 00 Earth Moving 31 23 00 Excavation and Fill 31 25 00 Erosion and Sedimentation Controls 31 40 00 Shoring and Underpinning 31 62 00 Driven Piles 31 70 00 Tunneling and Mining 31 71 00 Tunnel Excavation 33 10 00 Water Utilities 33 11 00 Groundwater Sources 33 16 00 Water Utility Storage Tanks 33 40 00 Stormwater Utilities 33 80 00 Communications Utilities

02 41 00 Demolition 21 00 00 Fire Suppression 31 00 00 Earthwork 31 05 16 Aggregates for Earthwork 31 10 00 Site Clearing 31 20 00 Earth Moving 31 22 00 Grading 31 23 00 Excavation and Fill 31 25 00 Erosion and Sedimentation Controls 31 30 00 Earthwork Methods 31 50 00 Excavation Support and Protection 31 62 00 Driven Piles 31 63 00 Bored Piles 32 16 00 Curbs, Gutters, Sidewalks, and Driveways 32 30 00 Site Improvements 32 32 26 Metal Crib Retaining Walls 33 10 00 Water Utilities 33 11 00 Groundwater Sources 33 16 00 Water Utility Storage Tanks 33 40 00 Stormwater Utilities 33 46 00 Stormwater Management 34 70 00 Transportation Construction and Equipment Construction Management Highway Contractor