Engineering surveys are conducted to obtain data essential for planning, estimating, locating and layout for the various phases of projects. The objectives of engineering surveys include obtaining preliminary data required for selecting suitable routes and sites and for preparing structural designs, establishing a system of reference points, and marking lines, grades and principal points.

Qasco provides several specialist survey types that fall under the general category of engineering surveys. These include:

> Construction Control & Set-Out

We can provide expertise to any construction site including infrastructure, civil and building projects. Our surveyors transfer information from digital plans to site locations, and we coordinate activities to ensure that all parts of a project come together as planned.

Recent projects that Qasco has been involved with include: Brisbane International Airport Expansion (ITBX), Robina Stadium (Skilled Park) and PA & Wesley Hospitals

> Stockpiles and Volumes

Qasco can provide volumes from either ground or aerial survey using either our survey or photogrammetric teams. Examples of projects requiring volume surveys include stockpile materials at landfills and quarries and progresive site volumes during large construction projects. Depending on the size, location and timing of the project and existing data, Qasco can advise on the most cost effective and safe method to meet project requirements.

For more information on volumes calculated using photogrammetry, visit Earthworks Volumes.

> Aeronautical Surveys

Aeronautical surveys are required to locate obstacles that encroach into an airport's operating limits, and they are also used to plan airport expansions and redevelopments. These types of surveys can be conducted using aerial mapping and/or ground survey. Qasco has customised software to efficiently undertake aeronautical surveys.

These surveys have been completed at airfields including Brisbane, Darwin, Amberley, Pearce, Oakey, Gin Gin and Coolangatta/Gold Coast.

> Detail Surveys

Detail surveys can be performed in situations where aerial mapping is not suitable, such as heavily forested areas where the ground level is obscured by foliage. Detail surveys can pick up ground and water heights, underground services and all features, both 3D and 2D, such as retaining walls, fences, roads and services.

> International Certification of Athletics Facilities

Qasco was involved in the set-out and 'as built' surveys of the University of Queensland (UQ) and the Sunshine Coast athletics facilities and completed survey work at Ballymore Rugby Union Club and ANZ athletics facilities. Upon completion of the UQ facility, Qasco was chosen to certify that it was built in accordance with the International Amateur Athletics Federation (IAAF) rules. A certificate was prepared and presented to the IAAF.

Any athlete who breaks a world record at this facility is required to have Qasco certify that the facility is to IAAF standards.

For more information on our surveying services, visit the following sections:

> Cadastral Surveys
> Topographic Surveys
> Geodetic Surveys