United States Department of Transportation
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Edition:Final Report
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Abstract:The location of this highway traverses the west bank of the Potomac River. The direction of the river along the line is southerly. In general, the right of way extends from along the river front on the east to the higher ground on the west of the roadway. This terrain is indented by tidal estuaries of varying widths. The inclination of the ground surface towards the river varies from level in the tidal flats to about twenty degrees along the higher elevations. The surface of these slopes is serrated by innumerable ravines, all of which carry surface water during storm periods, and some of them are outlets for sub-surface drainage. The route commences near the south end of the Arlington Memorial Bridge on Columbia Island. From this point onward, like a band of ribbon, it threads its way, deflecting first to the right, then to the left, and so on in long, graceful, serpentine curves as it meanders across tidal inlets and intervening higher ground. Again, we view this lane crowning the hills with long, sweeping, undulating grades, reversing themselves ever values as it wends its way, developing attractive and ever-changing vistas. The located line partly over high ground and tidal marshes, classified the material to be removed. This classification in turn determined the methods of operations. The results were a decision to let the contracts for grading in two units, the fills across the tidal estuaries to be constructed by hydraulic dredge methods, and the zones of higher ground between to be removed by common excavating equipment. There were five construction units for which plans were prepared and contracts awarded. In addition, thereto contract "A" provided for the construction of a riprap seawall along the river front from the R.F. & P. Railroad to the Boundary Channel Bridge.
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[PDF-38.96 MB]
