Levee Construction--All Operations to Completion & Drivers
Breakwater or Jetty Construction--All Operations to Completion & Drivers
Clearing of Land--Floodway & Drivers
Dams or Flood Retarding Structure Construction & Drivers
Dams or Flood Retarding Structures--Earth Moving and Placing & Drivers
Dike or Revetment Construction & Drivers
Erosion Control--Along Rivers, Spillways, Creeks, Etc.--Using Gabion Baskets & Drivers
Flood or Dam Retarding Structures--Earth Moving and Placing & Drivers
Jetty or Breakwater Construction--All Operations to Completion & Drivers
Revetment or Dike Construction & Drivers

91618 Dam or Reservoir Construction
91641 Dike, Levee or Revetment Construction
96872 Jetty or Breakwater Construction
97111 Logging and Lumbering

1629 Heavy Construction, Nec

238910 Site Preparation Contractors
237990 Other Heavy and Civil Engineering Construction

6018 Dam or Lock Construction--Earth Moving or Placing--All Operations & Drivers
6005 Jetty or Breakwater Construction--All Operations to Completion & Drivers
6045 Levee Construction--All Operations to Completion & Drivers
2702 Logging or Tree Removal--Nonmechanized Operations

6011 Dam Construction
6361 Canal Construction

0609 Excavation
0611 Pile Driving
0009 Logging, N.O.C.

6217 BEAVER DAM DEMOLITION
2702 LOGGING OR LUMBERING

6217 Excavation & Drivers.
6005 BREAKWATER or Jetty CONSTRuction – & Drivers
2702 Dam or Lock Construction--Timber Cutting and Removal & Drivers

6018 DAM OR LOCK CONST-EARTH MOVING OR PLACING-IN CONN WITH DAMS OR LOCKS-ALL TYPES-ALL OPER TO COM & D
6005 BREAKWATER OR JETTY CONSTRUCTION - ALL OPERATIONS TO COMPLETION & DRIVERS
6045 LEVEE CONSTRUCTION - ALL OPERATIONS TO COMPLETION & DRIVERS
2702 Dam or Lock Construction--Timber Cutting and Removal & Drivers

0609 Excavation
0611 Pile Driving
0009 Logging, N.O.C.