| Naics index | Naics index description |
|---|---|
| 237990 | Caisson (i.e., marine or pneumatic structures) construction |
| 237990 | Canal construction |
| 237990 | Channel construction |
| 237990 | Cofferdam construction |
| 237990 | Construction management, dam |
| 237990 | Construction management, marine structure |
| 237990 | Construction management, mass transit |
| 237990 | Construction management, outdoor recreation facility |
| 237990 | Construction management, tunnel |
| 237990 | Cribbing (i.e., shore protection), construction |