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LA MESA -- One hundred years ago, the City of La Mesa Board of Trustees adopted Ordinance No. 7 creating the position of City Engineer and ordinance No. 8 establishing a Primal Bench Mark for surveying. The Bench Mark was the “bronze tablet set in the wall of the brick building at the southwest corner of Lookout (La Mesa Boulevard) and Railroad (Nebo Drive) avenues by the United States Geologic Survey…and that the elevation thereof is five hundred forty and six one hundreds (540.06) feet above city base.”
Unfortunately, over the years the Primal Bench Mark was displaced. In celebration of the City of La Mesa’s Centennial, the City will establish a new Primal Bench Mark. A centennial bronze survey monument will be set to commemorate the occasion.
The site chosen for the Bench Mark will be the southeast corner of the intersection of Nebo Drive and La Mesa Boulevard, in front of the train museum and near the location of the first Primal Bench Mark. On October 22, 2012, City staff from the engineering division will perform a leveling survey to establish the elevation of the newly set monument. Between 3:30 and 4:00 that afternoon, there will be a brief ceremony where the City Engineer will verify the survey instrument measurements and stamp the elevation into the monument.