When developing or redeveloping a property the architect/engineer/planner requires an accurate and comprehensive map of the site, indicating a wide array of relevant information. Exact ground elevations, roads, buildings, utility services, trees and significant landscape and drainage features are all indicated on a Topographic Survey. The map is produced according to strict requirements outlined by the municipal, county and other regulations. Our topographical surveys are carried out in accordance with the standard 'topographical survey specifications' as set by the Survey Department of the Concerned Municipality.
Surveys that are generally conducted along main roads and streets require great attention to detail. Along with our normal survey considerations, there are usually issues such as traffic and personnel safety to consider, especially where large amounts of time is required in the road, because of extra detail required such as; white lines, yellow lines, lane information and central reservation information. Roads are normally surveyed to extents of highway boundary, although clients sometimes require, with permission from property owners, to give them information on building positions of trees and other relevant detail when planning, large 'above road' structures.
Our standard surveys are generally based on the following criteria:-
Horizontal and vertical controls are both arbitrary, unless required to be co-ordinated to the Ordnance Survey Grid System and Datum. Detail varies according to size and type of site and is always adjustable to the client needs. Our basic surveys will always include boundaries; trees with a diameter generally greater than 150mm will be measured and identified according to species; levels across the site are taken as a 10m grid with additional spot heights taken to account for undulating topography. Presentation is at scales from 1:50 to 1:500 depending on the clients' needs - typically on A3/A1/A0 size sheets of stable base material or colored paper copies. Digital data is supplied for use with AutoCAD in DWG/DXF and PDF formats.