1932 map of the piers and port businesses of Red Hook from Atlantic Basin to the Erie Basin for  the War Department / Corps. of Engineers, U.S. Army.

The map indicates the businesses that operates each pier as well as their primary use such as, General Cargo - foreign trade; general cargo - inland trade; coal handling; lumber; storage warehouses; cold storage; naval stores; dry docks; marine repair; railway; car float bridges; ferries; and molasses handling.

A circled number refers to each pier.  Their meanings, as listed in the map's legend are:

Reference 
Number

 344        New York Dock Pier 32
 345        Butler’s Dock
 346        Rudolf Co. Wharf
 347        Hamilton Avenue Ferry
 348        Wyle Lighterage Corporation Wharf
 349        New York Dock Co.:  Hamilton Avenue Bulkhead
 350        New York Dock Co.:  Pier No. 33
 351        New York Dock Co.:  Pier No. 34
 352        New York Dock Co.:  Pier No. 35
 353        Commercial Wharf
 354        New York Dock Co.:  Pier No. 36
 355        New York Dock Co.:  Pier No. 37
 356        New York Dock Co.:  Atlantic Basin float
 357        New York Dock Co.:  Pier No. 38 
 358        New York Dock Co.:  Bulkhead
 359        New York Dock Co.:  Bulkhead and Wharf
 360        New York Dock Co.:  Pier No. 39
 361        New York Dock Co.:  Pier No. 40
 362        New York Dock Co.:  Pier No. 41
 363        Shipyard and Marine Railway
 364        New York Dock Co.:  Pier No. 44
 365        New York Dock Co.:  Pier No. 45
 366        New York Dock Co.:  Pier No. 46
 367        Beard’s Erie Basin (Inc.) warehouse pier
 368        Bulkhead, first slip, Erie Basin
 369        Beard’s Erie Basin (Inc.): Pier A
 370        Beard’s Erie Basin (Inc.): Pier B
 371        American Molasses Co. bulkhead
 372        Robins Dry Dock & Repair Co.:  Pier No. 1
 373        Robins Dry Dock & Repair Co.:  Pier No. 2
 373A     Robins Dry Dock & Repair Co.:  Graving Dock Pier
 374        Robins Dry Dock & Repair Co.:  Pier No. 3
 374A     Robins Dry Dock & Repair Co.:  Pier No. 4
 375        Robins Dry Dock & Repair Co.:  Pier No. 5
 376        Brooklyn Spar Co. Basin
 377        Robins Dry Dock & Repair Co.:  Pier No. 6
 378        Robins Dry Dock & Repair Co.:  Pier No. 7
 379        Beard’s Erie Basin (Inc.): Pier No. 3
 380        Beard’s Erie Basin (Inc.): Pier No. 2
 381        Beard’s Erie Basin (Inc.): Pier No. 1
 382        United Dry Docks (Inc.): Pier No. 1
 383        Beard’s Erie Basin Inc.): bulkhead B
 384        United Dry Docks (Inc.): Pier No. 2
 385        United Dry Docks (Inc.): Pier No. 3
 386        United Dry Docks (Inc.): Pier No. 4
 386A     United Dry Docks (Inc.): Pier No. 1
 387        Beard’s Erie Basin: Spaces 8, 10, 12
 388        Beard’s Erie Basin: Spaces 4 and 6
 389        United Dry Docks (Inc.) bulkhead A
 389A     Nelson Corporation bulkhead
 390        South Brooklyn Storage Co. bulkhead
 391        Columbia Street bulkhead