Categories

31 50 00 Excavation Support and Protection 32 32 00 Retaining Walls 33 10 00 Water Utilities 33 40 00 Stormwater Utilities 33 46 00 Stormwater Management 34 70 00 Transportation Construction and Equipment 34 71 00 Roadway Construction Division 23 - Heating, Ventilating, and Air Conditioning Highway Contractor Utility Contractor Residential/Multi Family Contractor HVAC – Sales/Service/Repair 02 00 00 Existing Conditions 02 41 00 Demolition 02 50 00 Site Remediation 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 02 60 00 Contaminated Site Material Removal 02 80 00 Facility Remediation 23 00 00 Heating, Ventilating, and Air Conditioning 23 00 01 Operation and Maintenance of HVAC Systems 23 09 00 Instrumentation and Control for HVAC 23 30 00 HVAC Air Distribution 26 30 00 Facility Electrical Power Generating and Storing Equipment 31 23 19 Dewatering 31 25 00 Erosion and Sedimentation Controls 31 30 00 Earthwork Methods