Frequent bench marks shall be established along the line, on permanent objects, and their elevation recorded in the field books.
Va. Code Ann. § 21-328
Bench marks
Code 1919, § 1750; 1920, p. 610; 1926, p. 611.
Official source: Virginia Law Portal (LIS). Reproduced from public-domain Virginia statutes; confirm against the official source for the current text. Not legal advice.