§ 21-328. Bench marks.
Frequent bench marks shall be established along the line, on permanentobjects, and their elevation recorded in the field books.
(Code 1919, § 1750; 1920, p. 610; 1926, p. 611.)
§ 21-328. Bench marks.
Frequent bench marks shall be established along the line, on permanentobjects, and their elevation recorded in the field books.
(Code 1919, § 1750; 1920, p. 610; 1926, p. 611.)
