Figure 47. Single-speed winch for operating 10-ton cargo boom.

Figure 48. Fifty-ton barge made up of 21 sections and propelled by 115-hp outboard engine.


SECTION V
OPERATIONS

14. CONDITIONS OF CAPTURED PORTS. a. General. Enemy destruction of a port’s facilities generally may be divided into two classifications.

(1) Channels and harbors. Offshore obstructions in the waters of the harbor include booms and torpedo nets, debris, prepared sunken obstacles, destruction of navigation aids and moorings, and damage to underwater pilings and foundations. It is the engineer port repair ship’s job to remove or destroy these obstacles and to make the underwater repairs.

(2) Damage to shore installations. The destruction of shore installations includes damage to utilities, shops, warehouses, railway spurs and yards, roads, bridges, locked basins, cargo-handling equipment, piers, wharves, and quays. It is the mission of the port construction and repair groups to repair and put these facilities back in operation.