SNB-Survey Control Information

Eligibility Criteria

Summary

Service New Brunswick manages the geographic information infrastructure for the Province. This includes the maintenance of the control survey network, the development of standards, development and distribution of various tools to relate the ATS77 datum and the new NAD83 (CSRS) datum as proclaimed under an amendment to the Surveys Act on April 1st, 1999.

Products :

• New Brunswick Active Control System (NBACS);
• New Brunswick High Precision Network (NBHPN);
• NBGeocalc (CD ROM), a user-friendly calculator to handle coordinate conversions;
• A set of CD ROM containing +/- 26,000 sketches and 130 index maps to identify and locate the conventional control network in the field;
• A full Web driven database containing pertinent information for the both survey networks;
• Definition parameters for NAD83 (CSRS) and the New Brunswick stereographic map projection available in the User Guide on the Website.

1. Conventional Network
Since the early sixties, approximately 26,000 control monuments were established on the ground around the province. It was widely used as the control network for the surveying of most properties in the booming home construction period of the seventies. This old network is not being physically maintained since1996. Only the mathematical values were revised to NAD83 CSRS adjusted status in 1999.

2. The New Brunswick High Precision Network (NBHPN)
A GPS based infrastructure of 142 stations linked to the CSRS (Canadian Spatial Reference System). This network is physically maintained through an annual field inspection; replacement of destroyed points and updates to the location sketches in both French and English; NAD83 (CSRS) coordinatesin both NB Stereographic coordinates and Latitude/Longitude along with pictures and interactive reference map.

3. The New Brunswick Active Control System (NBACS)
Currently there are five Active Control Stations (ACS) in New Brunswick. SNB presently provides RINEX data from these stations to any provincial GPS users wanting static data for post-processing their GPS observations. The RINEX files are available on an hourly basis through the SNB Online Website. The ACS sites are located in Fredericton, Moncton, Saint John, Miramichi and Bathurst. Negotiations are underway to have two more in 2008 and they will be located in Edmundston and Woodstock.

No restrictions. Available at no charge through the Service New Brunswick Online services Web site. Go to the Control Survey Network Web site at: https://www.pxw1.snb.ca/snb7001/e/2000/2920e.asp . This will link to an information page from which one can access the database section where Values, maps sketches and pictures are available or the GPS observations for the NBACS.

New Brunswick Contact(s):
Mr. Léo-Guy LeBlanc
Director of Surveys
Service New Brunswick
985 College Hill Road
P.O. Box 1998
Fredericton, New Brunswick  E3B 5G4
Telephone: 506-453-2353
Fax: 506-453-3898
E-mail: leo-guy.leblanc@snb.ca