Survey Control Standards & Benchmarks
The City of Richmond introduced the new 2008 Engineering Design Specifications, which specifically includes New Survey Control Standards. A copy of the new Specifications may be purchased at the front counter of City Hall. City of Richmond Design Specification 2.4 - Survey Control, (page 2-2)
The City of Richmond has adopted Metro Vancouver's High Precision Network of Monuments (HPN). Any survey related work in the City shall be based upon the HPN monuments. Elevations on intermediate ISA UTM marker tablets do not conform to the HPN monument values. Intermediate ISA UTM monuments may be referenced as secondary control benchmarks but all data must be tied to a minimum of two HPN monuments.
On August 1, 2018 Metro Vancouver released a refreshed CGVD28 vertical datum (details here). The newly refreshed datum will be accessible directly through space-based positioning tools (e.g. GNSS).
Metro Vancouver HPN monument information is available upon request at the front counter, 1st floor of City Hall and can also be accessed on the Provincial Government GeoBC* website.
The City of Richmond Survey Department can provide an on-site Secondary Benchmark for a fee of $150 including GST. Fee increase to $250 will take effect on July 1st, 2021. For more information, please email the Survey Department at firstname.lastname@example.org
* City of Richmond assumes no responsibility for the accuracy of any information posted on GeoBC especially ISA monuments.