State Road 4A

State Road 4A (HM20S8)

Location: Summerland Key, FL 33042 Monroe County
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Country: United States of America
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N 24° 39.696', W 81° 26.804'

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The first Overseas Highway, also known as State Road 4A (SR 4A), consisted of two roadway segments both completed by 1928. One spanned from Key West to No Name Key, and the other from Key Largo to Upper Matecumbe Key. Ferries transported cars between the segments. The roads were constructed of local rock and marl. In the 1930s, World War I veterans were sent as part of the Federal Emergency Relief Administration to work on bridges to close the gap, but construction was cut short when the 1935 Labor Day hurricane claimed the lives of more than 400 workers and their families. The catastrophe sparked debate over whether to rebuild the Florida East Coast (FEC) Railway or the highway. Monroe County opted for the highway, and the railway's Bahia Honda Bridge was converted for automotive use. In 1938, a toll road linked Lower Matecumbe to Big Pine Keys and created the first continuous road from Miami to Key West. During World War II, the Overseas Highway moved from SR 4A to a new alignment using the FEC's straighter route. The new highway connected with US 1 and most of SR 4A was abandoned or became local streets. The section of SR 4A located north of this point, is part of the Florida Keys Overseas Heritage Trail.
HM NumberHM20S8
Year Placed2016
Placed ByFlorida Department of Transportation, Florida Department of Environmental Protection
Marker ConditionNo reports yet
Date Added Tuesday, August 15th, 2017 at 10:01am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)17R E 454797 N 2727551
Decimal Degrees24.66160000, -81.44673333
Degrees and Decimal MinutesN 24° 39.696', W 81° 26.804'
Degrees, Minutes and Seconds24° 39' 41.76" N, 81° 26' 48.24" W
Driving DirectionsGoogle Maps
Area Code(s)305
Which side of the road?Marker is on the right when traveling South
Closest Postal AddressAt or near 24413-24843 US-1, Summerland Key FL 33042, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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