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 32 05 16 Aggregates for Exterior Improvements 32 10 00 Bases, Ballasts, and Paving 32 18 00 Athletic and Recreational Surfacing 32 30 00 Site Improvements 32 32 00 Retaining Walls 32 80 00 Irrigation 32 90 00 Planting 33 00 00 Utilities 33 10 00 Water Utilities 33 30 00 Sanitary Sewerage 33 40 00 Stormwater Utilities 33 70 00 Electrical Utilities 34 71 00 Roadway Construction Highway Contractor Industrial Contractor Utility Contractor

Building Material Suppliers Chemical Suppliers Equipment Rental and Supply Highway Contractor Mobile/Trailer Offices Parking Lot Maintenance Safety Supplies 02 50 00 Site Remediation 03 01 00 Maintenance of Concrete 03 10 00 Concrete Forming and Accessories 07 10 00 Dampproofing and Waterproofing 07 18 00 Traffic Coatings 07 50 00 Membrane Roofing 10 14 53 Traffic Signage 31 22 00 Grading 31 25 00 Erosion and Sedimentation Controls 32 16 00 Curbs, Gutters, Sidewalks, and Driveways 32 17 00 Paving Specialties 32 18 00 Athletic and Recreational Surfacing 32 30 00 Site Improvements 32 32 00 Retaining Walls 33 16 00 Water Utility Storage Tanks 34 71 00 Roadway Construction Division 35 - Waterway and Marine Construction

02 41 00 Demolition 22 00 00 Plumbing 31 00 00 Earthwork 32 00 00 Exterior Improvements 32 30 00 Site Improvements 33 00 00 Utilities Building Contractor Utility Contractor

32 00 00 Exterior Improvements 32 30 00 Site Improvements 32 80 00 Irrigation 32 90 00 Planting

31 10 00 Site Clearing 31 22 00 Grading 32 30 00 Site Improvements 32 31 00 Fences and Gates 32 32 00 Retaining Walls 32 80 00 Irrigation

32 10 00 Bases, Ballasts, and Paving 32 17 00 Paving Specialties 32 30 00 Site Improvements Parking Lot Maintenance

02 00 00 Existing Conditions 02 41 00 Demolition 02 50 00 Site Remediation 02 60 00 Contaminated Site Material Removal 02 80 00 Facility Remediation 03 00 00 Concrete 03 01 00 Maintenance of Concrete 03 10 00 Concrete Forming and Accessories 03 20 00 Concrete Reinforcing 03 30 00 Cast-in-Place Concrete 03 31 00 Structural Concrete 03 33 00 Architectural Concrete 03 40 00 Precast Concrete 03 50 00 Cast Decks and Underlayment 03 80 00 Concrete Cutting and Boring 03 90 00 Mass Concrete 31 00 00 Earthwork 32 00 00 Exterior Improvements 32 05 16 Aggregates for Exterior Improvements 32 10 00 Bases, Ballasts, and Paving 32 16 00 Curbs, Gutters, Sidewalks, and Driveways 32 17 00 Paving Specialties 32 17 23 Pavement Markings 32 18 00 Athletic and Recreational Surfacing 32 30 00 Site Improvements 32 31 00 Fences and Gates 32 31 19 Decorative Metal Fences and Gates 32 32 00 Retaining Walls 32 32 26 Metal Crib Retaining Walls 32 34 00 Fabricated Bridges 32 80 00 Irrigation 32 90 00 Planting Building Contractor Construction Management Design Build General Contractors & Specialty Contractors Highway Contractor Industrial Contractor Residential/Multi Family Contractor Utility Contractor

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

01 56 00 Temporary Barriers and Enclosures 32 30 00 Site Improvements 34 71 00 Roadway Construction Division 02 - Site Construction

31 22 00 Grading 32 17 00 Paving Specialties 32 30 00 Site Improvements Design Build Highway Contractor Residential/Multi Family Contractor 32 16 00 Curbs, Gutters, Sidewalks, and Driveways 34 71 00 Roadway Construction Parking Lot Maintenance

04 40 00 Stone Assemblies 13 00 00 Special Construction 31 00 00 Earthwork 32 00 00 Exterior Improvements 32 05 16 Aggregates for Exterior Improvements 32 30 00 Site Improvements 32 31 00 Fences and Gates 32 32 00 Retaining Walls Building Contractor Rock/Gravel/Sand

Division 02 - Site Construction Division 31 - Earthwork Division 33 - Utilities Division 34 - Transportation Highway Contractor Utility Contractor 34 80 00 Bridges 34 71 00 Roadway Construction 32 05 16 Aggregates for Exterior Improvements 32 10 00 Bases, Ballasts, and Paving 32 16 00 Curbs, Gutters, Sidewalks, and Driveways 32 30 00 Site Improvements 32 32 00 Retaining Walls 33 00 00 Utilities

31 00 00 Earthwork 32 00 00 Exterior Improvements 32 10 00 Bases, Ballasts, and Paving 32 16 00 Curbs, Gutters, Sidewalks, and Driveways 32 30 00 Site Improvements 33 00 00 Utilities 33 10 00 Water Utilities Construction Management Division 33 - Utilities Utility Contractor

02 00 00 Existing Conditions 02 41 00 Demolition 02 50 00 Site Remediation 02 60 00 Contaminated Site Material Removal 03 00 00 Concrete 03 10 00 Concrete Forming and Accessories 03 31 00 Structural Concrete 07 18 00 Traffic Coatings 13 00 00 Special Construction 31 00 00 Earthwork 31 20 00 Earth Moving 31 22 00 Grading 31 23 00 Excavation and Fill 31 23 19 Dewatering 31 25 00 Erosion and Sedimentation Controls 31 30 00 Earthwork Methods 31 40 00 Shoring and Underpinning 31 50 00 Excavation Support and Protection 32 10 00 Bases, Ballasts, and Paving 32 16 00 Curbs, Gutters, Sidewalks, and Driveways 32 17 00 Paving Specialties 32 17 23 Pavement Markings 32 30 00 Site Improvements 32 32 00 Retaining Walls 33 00 00 Utilities 33 10 00 Water Utilities 33 30 00 Sanitary Sewerage 33 40 00 Stormwater Utilities Landscaping Specialty Contractor Trucking and Hauling Utility Contractor

02 00 00 Existing Conditions 02 41 00 Demolition 02 60 00 Contaminated Site Material Removal 31 00 00 Earthwork 31 10 00 Site Clearing 31 20 00 Earth Moving 31 22 00 Grading 31 23 00 Excavation and Fill 31 23 19 Dewatering 31 25 00 Erosion and Sedimentation Controls 31 30 00 Earthwork Methods 32 30 00 Site Improvements 33 10 00 Water Utilities 33 30 00 Sanitary Sewerage 33 40 00 Stormwater Utilities 33 46 00 Stormwater Management Design Build Highway Contractor Utility Contractor