HDCP, HECP, HDOP 3 and SCR-582
Fort Schwatka, HD Dutch Harbor
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The combined Army Harbor Defense Command Post, or HDCP, and Navy Harbor Entrance Command Post at Fort Schwatka was housed in a two story structure of reinforced concrete construction. Harbor Defense Observation Post, or HDOP, number 3 was located on the upper level, while the lower level housed the other installations.

The facility included a SCR-582 surveillance radar, an observation station, gas proofing equipment, a small power plant, and more than 1200 square feet of office space. Access was via a wooden tunnel to the lower floor, supplemented by a ladder shaft on the upper observation level.


Main level
HDOP 3 and SCR-582 site




Exterior



The wooden access tunnel.
July 2004
Collapsed section near the main entrance.
July 2004
Inside the access tunnel.
July 2004
The main entrance.
July 2004
Looking northwest from the next hill.
July 2004
The southeast side of the observation station.
July 2004
Looking southeast at the observation station.
July 2004
The observation station, looking east.
July 2004
Looking northwest on top of the observation station.
July 2004
Looking southwest.
July 2004
The power room vents and air intake pipes.
July 2004
The top of the stairway, with the ladder shaft midway.
July 2004







Documents
Form 2August 1, 1944
Form 5August 1, 1944
Map of areaDecember 10, 1944
Annex B, Page 4. A description of the facility1944
Annotated Plan2005




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