- 02340 - Soil Stabilization
- 02360 - Soil Treatment
- 02370 - Erosion and Sedimentation Control
- 02400 - Tunneling, Boring and Jacking
- 02455 - Driven Piles
- 02475 - Caissons
- 02530 - Sanitary Sewerage
- 02600 - Drainage and Containment
- 02610 - Pipe Culverts
- 02620 - Subdrainage
- 02630 - Storm Drainage
- 02640 - Culverts and Manufactured Construction
- 02830 - Retaining Walls
- 02850 - Prefabricated Bridges
- 31 01 62 - Maintenance of Driven Piles
- 31 09 16 - Special Foundation and Load Bearing Elements Instrumentation and Monitoring
- 31 25 00 - Erosion and Sedimentation Controls
- 31 25 13 - Erosion Controls
- 31 25 23 - Rock Barriers
- 31 25 53 - Sedimentation Controls
- 31 25 63 - Rock Basins
- 31 31 00 - Soil Treatment
- 31 31 13 - Rodent Control
- 31 31 16 - Termite Control
- 31 31 19 - Vegetation Control
- 31 32 00 - Soil Stabilization
- 31 32 13 - Soil Mixing Stabilization
- 31 32 19 - Geosynthetic Soil Stabilization and Layer Separation
- 31 32 23 - Pressure Grouting Soil Stabilization
- 31 32 33 - Shotcrete Soil Slope Stabilization
- 31 35 19 - Geosynthetic Slope Protection
- 31 35 23 - Slope Protection with Slope Paving
- 31 36 00 - Gabions
- 31 37 00 - Riprap
- 31 62 00 - Driven Piles
- 31 62 13 - Concrete Piles
- 31 62 16 - Steel Piles
- 31 62 19 - Timber Piles
- 31 62 23 - Composite Piles
- 31 64 00 - Caissons
- 31 64 13 - Box Caissons
- 31 64 16 - Excavated Caissons
- 31 64 19 - Floating Caissons
- 31 64 23 - Open Caissons
- 31 64 26 - Pneumatic Caissons
- 31 64 29 - Sheeted Caissons
- 31 70 00 - TUNNELING AND MINING
- 32 32 00 - Retaining Walls
- 32 32 13 - Cast-in-Place Concrete Retaining Walls
- 32 32 16 - Precast Concrete Retaining Walls
- 32 32 19 - Unit Masonry Retaining Walls
- 32 32 23 - Segmental Retaining Walls
- 32 32 29 - Timber Retaining Walls
- 32 34 00 - Fabricated Bridges
- 33 30 00 - SANITARY SEWERAGE UTILITIES
- 33 31 00 - Sanitary Utility Sewerage Piping
- 33 32 13 - Packaged Utility Lift Stations
- 33 32 16 - Packaged Utility Wastewater Pumping Stations
- 33 32 19 - Public Utility Wastewater Pumping Stations
- 33 34 00 - Sanitary Utility Sewerage Force Mains
- 33 39 13 - Sanitary Utility Sewerage Manholes, Frames, and Covers
- 33 39 23 - Sanitary Utility Sewerage Cleanouts
- 33 40 00 - STORM DRAINAGE UTILITIES
- 33 41 00 - Storm Utility Drainage Piping
- 33 42 00 - Culverts
- 33 42 13 - Pipe Culverts
- 33 42 16 - Concrete Culverts
- 33 44 00 - Storm Utility Water Drains
- 33 44 13 - Utility Area Drains
- 33 46 00 - Subdrainage
- 33 46 13 - Foundation Drainage
- 33 46 16 - Subdrainage Piping
- 33 46 19 - Underslab Drainage
- 33 46 26 - Geotextile Subsurface Drainage Filtration
- 33 46 33 - Retaining Wall Drainage
- 33 49 13 - Storm Drainage Manholes, Frames, and Covers
- 33 49 23 - Storm Drainage Water Retention Structures
- 35 42 00 - Waterway Bank Protection