historic context of maryland highway bridges built between 1948 ...
historic context of maryland highway bridges built between 1948 ...
historic context of maryland highway bridges built between 1948 ...
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SECTIONFOURPost World War II Technological Developments5.3.9 Wood Bridges<strong>1948</strong>-1960: 30 constructed (Maryland State Highway Administration 2003).During the postwar period, wood <strong>bridges</strong> continued to be constructed in Maryland, but weremainly located in Southern Maryland and on the Eastern Shore. Wood <strong>bridges</strong> were functionaland economical and gave the ―appearance from the roadway <strong>of</strong> a much more costly bridge.‖Two types <strong>of</strong> wood <strong>bridges</strong> were constructed during this period. Both types were compositewood and reinforced concrete structures and are known as T-beam <strong>bridges</strong> and Composite SlabDeck <strong>bridges</strong>. T-beam <strong>bridges</strong> utilize timber stringers and concrete slabs while Composite SlabDecks utilize wood formed, cast concrete sections supported by wood piers (Spero and Berger &Associates 1995: 39, 43). An example <strong>of</strong> a timber bridge is the Bestpitch Ferry Road Bridge thatspans the Transquaking River in Dorchester County, <strong>built</strong> in 1946 (Legler and Highsmith 2002:Dorchester County).\15-SEP-11\\ 5-7