historic context of maryland highway bridges built between 1948 ...

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SECTIONSIXResults of Field InvestigationsNational Register of Historic Places Eligibility:The Phillips Mill Road Bridge over the East Branch of Winters Run (MIHP # HA-2046, BridgeH-07000) in Harford County is not eligible for listing in the National Register for Historic Placesunder Criterion A as it does not reflect trends in the social, economic, industrial, andtransportation development of its locality or of the state, region, or nation. The crossing is not ahistoric river crossing as the road and crossing have been moved.The Phillips Mill Road Bridge over the East Branch of Winters Run is not National Registereligibleunder Criterion B, as it is not associated with an individual significant on the local, state,or national level.The Phillips Mill Road Bridge over the East Branch of Winters Run is National Register-eligibleunder Criterion C on the state level with a period of significance of 1958.The bridge is one of theearliest examples of the pre-stressed concrete box girder bridges built in Maryland during the1948-1960 period. The Phillips Mill Bridge retains sufficient integrity of design, materials,workmanship, association, setting, and location to stand as a representative example of a specificbridge type which may survive in substantial numbers.National Register-eligibility under Criterion D was not investigated as part of this study.\15-SEP-11\\ 7-30
SECTIONSIXResults of Field InvestigationsBridge #: 1600501Bridge Name: US 1 Northbound Bridge over the Northwest Branch of the Anacostia River(MIHP# PG:68-100)County: Prince George‘sDate of Construction: 1956-57Bridge Type: Concrete BeamNRHP Eligibility/ Criterion: Criterion A and Criterion CSummary Description:Bridge No. 1600501, a prestressed concrete beam bridge built in 1956-1957, carries US 1Northbound over the Northwest Branch of the Anacostia River. The bridge runs northeastsouthwestand carries two lanes of traffic. The bridge is a short span that does not have piers forsupport. The bridge measures approximately 85 feet long and 43 feet wide. The bridge iscomposed of ten prestressed concrete beams with cast-in-place concrete between the beamflanges. It appears the deck of the bridge has been resurfaced with blacktop within the past tenyears. Metal joint plates are located at each end of the bridge. The bridge‘s superstructurefeatures a parapet with a concrete wall and bowed Alcoa railing. The railing, which is original,looks much like the one depicted in a historic photograph of the no-longer-extant bridge carryingUS 50 over the Severn River in Annapolis, which opened in 1953. The date "1957" is inscribedin the concrete parapet at the southeast corner of the bridge.Statement of Significance:Bridge No. 1600501 was part of the first small group of prestressed concrete bridges erected inMaryland in the mid 1950s and is therefore significant in the history of bridge engineering in thestate. This prestressed concrete beam bridge, built in 1956-1957, carries US 1 northbound overthe Northwest Branch of the Anacostia River. The bridge‘s superstructure features a parapet witha concrete wall and bowed Alcoa railing. The railing, which is original, looks much like the onedepicted in a historic photograph of the no-longer-extant bridge carrying US 50 over the SevernRiver in Annapolis, which opened in 1953. The bridge is also significant for its association withan important mid twentieth-century trend in Maryland‘s history—the modernization by the State\15-SEP-11\\ 7-31
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F I N A L R E P O R THISTORIC CONTE
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ERRATAURS completed this report in
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Executive SummaryHA-2046PG:68-100PG
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Table of ContentsConclusion and Rec
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SECTIONONEIntroductionTwenty one br
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3. Section 1 ONE Methodolog ySECTIO
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SECTIONTWOMethodologyNineteen highw
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SECTIONTHREEHistoric Context1960 on
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SECTIONTHREEHistoric Contextcovered
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SECTIONTHREEHistoric Contextorigina
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SECTIONTHREEHistoric Contextexperie
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Page 34 and 35: SECTIONTHREEHistoric Contextof outs
Page 36 and 37: SECTIONFOURPost World War II Techno
Page 42 and 43: SECTIONFIVEConsulting Engineers and
Page 48 and 49: SECTIONSIXResults of Field Investig
Page 96 and 97: SECTIONSEVENConclusion and Recommen
Page 98 and 99: SECTIONEIGHTReferences CitedCorddry
Page 100 and 101: SECTIONEIGHTReferences CitedKaszyns
Page 102 and 103: SECTIONEIGHTReferences CitedSeely,
Page 104 and 105: Appendix A1948-1960 Maryland Bridge
Page 106 and 107: Appendix BMaryland Bridges By Type
Page 108 and 109: Appendix CResumes of Key Personnel\
Page 110 and 111: Appendix DNotes From August 25, 200
Page 112: Appendix DNotes From August 25, 200
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