450 Miles of Rail Line Mapped in Nine Months

by Joseph P. Burns, (M.ASCE), Photogrammetric Consultants; Minneapolis, Minn.,

Serial Information: Civil Engineering—ASCE, 1978, Vol. 48, Issue 12, Pg. 51-53

Document Type: Feature article


Working under one of the largest single contracts for survey services ever awarded, two Washington, D.C. survey companies lead a group of thirteen land and aerial survey firms in mapping the Northeast Rail Corridor between Washington and Boston. In nine months the companies established 800 second-order survey monuments and produced 2400 drafted topographic maps covering a 300-ft to 800-ft band centered on the railroad. Maps tied to the high-order baseline monuments were needed for design of the $l.75 billion improvement program authorized by Congress in 1976.

Subject Headings: Land surveys | Surveys (non-geomatic) | Rail transportation | Mapping | Aerial surveys | Topographic surveys | Monuments

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