Harbor Vigilance

Harbor Vigilance (HMLBB)

Location: Sullivans Island, SC 29482 Charleston County
Country: United States of America

N 32° 45.562', W 79° 51.432'

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1944 - 1945

From this camouflaged concrete observation post, Army and Navy personnel kept a round-the-clock vigil to protect Charleston Harbor. Built in 1944, this fortified underground installation housed the combined activities of the Navy's Harbor Entrance Control Post (HECP) and the Army's Harbor Defense Command Post (HDCP).

The Harbor Defense System included electronic surveillance and coastal lookouts, minefields, harbor gun batteries, minesweepers, patrol vessels, and aircraft. The system was controlled from here.

The observation platform and radio room, message center room, and operations room are equipped today as they were during World War II. If you walk downstairs you can visit some of these restored rooms, and step back into World War II.

Harbor Entrance Control Post / Harbor Defense Command Post
In the lower rooms, two officers and a crew of 36 staffed this "nerve center" day and night. From here they could coordinate air and sea forces and coastal artillery.
Marker ConditionNo reports yet
Date Added Tuesday, September 2nd, 2014 at 10:52am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)17S E 607047 N 3625188
Decimal Degrees32.75936667, -79.85720000
Degrees and Decimal MinutesN 32° 45.562', W 79° 51.432'
Degrees, Minutes and Seconds32° 45' 33.72" N, 79° 51' 25.92" W
Driving DirectionsGoogle Maps
Area Code(s)843
Closest Postal AddressAt or near 673-699 Palmetto St, Sullivans Island SC 29482, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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