Main Gateway

Main Gateway (HM4ZM)

Location: Fort Washington, MD 20744 Prince George's County
Country: United States of America

N 38° 42.7', W 77° 2.042'

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Two sets of gates protected the main entrance, or sally port. During the improvements made in the 1840s the drawbridge was added to make the approach to the gates more difficult.

The drawbridge, operated by a unique system of iron counterweights and chains, was designated to close rapidly in case of land attack.

(Sidebar): The entrance was also guarded by cannon. Thirteen guns, mounted on the parapet, covered the approaches to the gateway. To protect the area next to the wall and gateway, two casemates (gun rooms) were built into the wall flanking the bridge.
HM NumberHM4ZM
Marker ConditionNo reports yet
Date Added Monday, October 6th, 2014 at 2:17am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)18S E 323148 N 4286744
Decimal Degrees38.71166667, -77.03403333
Degrees and Decimal MinutesN 38° 42.7', W 77° 2.042'
Degrees, Minutes and Seconds38° 42' 42.00" N, 77° 2' 2.52" W
Driving DirectionsGoogle Maps
Area Code(s)301, 240
Closest Postal AddressAt or near 971 Unnamed Road, Fort Washington MD 20744, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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