Land Surveying

Land Surveying:

F&A’s land surveying group has provided quality service since 1992, working on major projects throughout Washington for clients such as WSDOT, Sound Transit, the City of Seattle, and King County. Most notable has been F&A’s continued involvement with the Sound Transit LINK Light Rail projects. F&A’s familiarity with City of Seattle’s standards and experience working on federally funded projects has increased our efficiency and proven to be a valuable asset to clients.


F&A supplements its land surveying capabilities by using GPS equipment and currently has two GPS systems available. The WSRN is a statewide network of Continuously Operating Reference Stations (CORS) and provides the ability to perform state-of-the-art, centimeter-level, real time surveys almost anywhere in Washington and southerly portions of British Columbia.

3D LiDAR Scanning:

F&A is well-versed in performing 3D LiDAR laser scanning to supplement our four robotic total stations. The benefit of the 3D LiDAR method is that it can provide as much detail as needed for design. LiDAR scans are post-processed to provide enough detail to the base map to assist in preparing the options analysis documents, as well as location and as-built information. This technology helps convey the existing conditions of critical locations, such as power substations or municipal water tanks, as well as existing topographic elements, pavement markings, lighting, signage, vaults, manholes, and other utilities.

F&A owns and operates a variety of Trimble, Leica, and Z&F High-Definition Laser Scanners, which gives us the ability to collect large amounts of data in a short amount of time with a high degree of accuracy and detail.

Drone Photogrammetry:

Drone photogrammetry offers a fast, cost-effective and often safer method for collecting aerial imagery and scan points required for accurate mapping, verification, and site plans. Photogrammetry transforms 2D images into 3D models, helping to interpret the surveyed area. With our licensed drone pilot, F&A has the ability to establish scan points around the building or area in question so that there is a clear line of sight to the columns which were surveyed. Using drones improves employee safety by avoiding dangerous terrain and hazardous areas. As drones are able to capture images of a large area and elevation, it keeps employees from having to physically map the area and carry heavy equipment. Drones are able to capture more area, which also increases efficiency and reduces cost.