CSI Divisions - Cost data
- 31 00 00 - Earthwork
- 31 10 00 - Site Clearing
- 31 20 00 - Earth Moving
- 31 23 19 - Dewatering
- 31 23 23 - Fill
- 31 23 33 - Trenching and backfill
- 31 30 00 - Earthwork Methods
- 31 31 00 - Soil Treatment
- 31 40 00 - Shoring and Underpinning
- 31 50 00 - Excavation Support and Protection
- 31 60 00 - Special Foundations and Load-Bearing Elements
- 31 70 00 - Tunneling and Mining