Surveyors mark exact measurements and locations of elevations, points, lines, and contours on or near Earth’s surface. They measure distances between points to determine property boundaries and to provide data for mapmaking, construction projects, and other engineering purposes. There are approximately 131,000 surveyors, cartographers, photogrammetrists, and surveying technicians employed in the United States. Of those, about 56,000 are surveyors and about 11,000 are cartographers and photogrammetrists.
History of Surveyor Career
As the United States expanded from the Atlantic to the Pacific, people moved over the mountains and plains into the uncharted regions of the West. They found it necessary to chart their routes and to mark property lines and borderlines by surveying and filing claims.
The need for accurate geographical measurements and precise records of those measurements has increased over the years. Surveying measurements are needed to determine the location of a trail, highway, or road; the site of a log cabin, frame house, or skyscraper; the right-of-way for water pipes, drainage ditches, and telephone lines; and for the charting of unexplored regions, bodies of water, land, and underground mines.
As a result, the demand for professional surveyors has grown and become more complex. New computerized systems are now used to map, store, and retrieve geographical data more accurately and efficiently. This new technology has not only improved the process of surveying but extended its reach as well. Surveyors can now make detailed maps of ocean floors and the moon’s surface.
The Job of Surveyors
On proposed construction projects, such as highways, airstrips, and housing developments, it is the surveyor’s responsibility to make necessary measurements through an accurate and detailed survey of the area. The surveyor usually works with a field party consisting of several people. Instrument assistants, called surveying and mapping technicians, handle a variety of surveying instruments including the theodolite, transit, level, surveyor’s chain, rod, and other electronic equipment. (See “Surveying and Mapping Technicians”). In the course of the survey, it is important that all readings be recorded accurately and field notes maintained so that the survey can be checked for accuracy.
Surveyors may specialize in one or more particular types of surveying.
Land surveyors establish township, property, and other tract-of-land boundary lines. Using maps, notes, or actual land title deeds, they survey the land, checking for the accuracy of existing records. This information is used to prepare legal documents such as deeds and leases. Land surveying managers coordinate the work of surveyors, their parties, and legal, engineering, architectural, and other staff involved in a project. In addition, these managers develop policy, prepare budgets, certify work upon completion, and handle numerous other administrative duties.
Highway surveyors establish grades, lines, and other points of reference for highway construction projects. This survey information is essential to the work of the numerous engineers and the construction crews who build the new highway.
Geodetic surveyors measure large masses of land, sea, and space that must take into account the curvature of Earth and its geophysical characteristics. Their work is helpful in establishing points of reference for smaller land surveys, determining national boundaries, and preparing maps. Geodetic computers calculate latitude, longitude, angles, areas, and other information needed for map-making. They work from field notes made by an engineering survey party and also use reference tables and a calculating machine or computer.
Marine surveyors measure harbors, rivers, and other bodies of water. They determine the depth of the water through measuring sound waves in relation to nearby land masses. Their work is essential for planning and constructing navigation projects, such as breakwaters, dams, piers, marinas, and bridges, and for preparing nautical charts and maps.
Mine surveyors make surface and underground surveys, preparing maps of mines and mining operations. Such maps are helpful in examining underground passages within the levels of a mine and assessing the volume and location of raw material available.
Geophysical prospecting surveyors locate and mark sites considered likely to contain petroleum deposits. Oil-well directional surveyors use sonic, electronic, and nuclear measuring instruments to gauge the presence and amount of oil- and gas-bearing reservoirs. Pipeline surveyors determine rights-of-way for oil construction projects, providing information essential to the preparation for and laying of the lines.
Photogrammetric engineers determine the contour of an area to show elevations and depressions and indicate such features as mountains, lakes, rivers, forests, roads, farms, buildings, and other landmarks. Aerial, land, and water photographs are taken with special equipment able to capture images of very large areas. From these pictures, accurate measurements of the terrain and surface features can be made. These surveys are helpful in construction projects and in the preparation of topographical maps. Photogrammetry is particularly helpful in charting areas that are inaccessible or difficult to travel.
Surveyor Career Requirements
Does this work interest you? If so, you should prepare for it by taking plenty of math and science courses in high school. Take algebra, geometry, and trigonometry to become comfortable making different calculations. Earth science, chemistry, and physics classes should also be helpful. Geography will help you learn about different locations, their characteristics, and cartography. Benefits from taking mechanical drawing and other drafting classes include an increased ability to visualize abstractions, exposure to detailed work, and an understanding of perspectives. Taking computer science classes will prepare you for working with technical surveying equipment.
Depending on state requirements, you will need some postsecondary education. The quickest route is by earning a bachelor’s degree in surveying or engineering combined with on-the-job training. Other entry options include obtaining more job experience combined with a one- to three-year program in surveying and surveying technology offered by community colleges, technical institutes, and vocational schools.
Certification or Licensing
All 50 states require that surveyors making property and boundary surveys be licensed or registered. The requirements for licensure vary, but most require a degree in surveying or a related field, a certain number of years of experience, and passing of examinations in land surveying. Generally, the higher the degree obtained, the less experience required. Those with bachelor’s degrees may need only two to four years of on-the-job experience, while those with a lesser degree may need up to 12 years of prior experience to obtain a license. Information on specific requirements can be obtained by contacting the licensure department of the state in which you plan to work. If you are seeking employment in the federal government, you must take a civil service examination and meet the educational, experience, and other specified requirements for the position.
The ability to work with numbers and perform mathematical computations accurately and quickly is very important. Other helpful qualities are the ability to visualize and understand objects in two and three dimensions (spatial relationships) and the ability to discriminate between and compare shapes, sizes, lines, shadings, and other forms (form perception).
Surveyors walk a great deal and carry equipment over all types of terrain so endurance and coordination are important physical assets. In addition, surveyors direct and supervise the work of their team, so you should be good at working with other people and demonstrate leadership abilities.
Exploring Surveyor Career
While you are in high school, begin to familiarize yourself with terms, projects, and tools used in this profession by reading books and magazines on the topic. One magazine that is available online is Professional Surveyor Magazine at http://www.profsurv.com/. One of the best opportunities for experience is a summer job with a construction outfit or company that requires survey work. Even if the job does not involve direct contact with survey crews, it will offer an opportunity to observe surveyors and talk with them about their work.
Some colleges have work-study programs that offer on-the-job experience. These opportunities, like summer or part-time jobs, provide helpful contacts in the field that may lead to future full-time employment. If your college does not offer a work-study program and you can’t find a paying summer job, consider volunteering at an appropriate government agency. The U.S. Geological Survey and the Bureau of Land Management usually have volunteer opportunities in select areas.
According to the U.S. Department of Labor, almost two-thirds of surveying workers in the United States are employed in engineering, architectural, and surveying firms. Federal, state, and local government agencies are the next largest employers of surveying workers, and the majority of the remaining surveyors work for construction firms, oil and gas extraction companies, and public utilities. Only a small number of surveyors are self-employed.
Apprentices with a high school education can enter the field as equipment operators or surveying assistants. Those who have postsecondary education can enter the field more easily, beginning as surveying and mapping technicians.
College graduates can learn about job openings through their schools’ placement services or through potential employers that may visit their campus. Many cities have employment agencies that specialize in seeking out workers for positions in surveying and related fields. Check your local newspaper or telephone book to see if such recruiting firms exist in your area.
With experience, workers advance through the leadership ranks within a surveying team. Workers begin as assistants and then can move into positions such as senior technician, party chief, and, finally, licensed surveyor. Because surveying work is closely related to other fields, surveyors can move into electrical, mechanical, or chemical engineering or specialize in drafting.
In 2005, surveyors earned a median annual salary of $45,860. According to the U.S. Department of Labor, the middle 50 percent earned between $33,960 and $60,730 a year. The lowest-paid 10 percent were paid less than $25,530, and the highest-paid 10 percent earned over $75,870 a year. In general, the federal government paid the highest wages to its surveyors, $66,710 a year in 2005.
Most positions with the federal, state, and local governments and with private firms provide life and medical insurance, pension, vacation, and holiday benefits.
Surveyors work 40-hour weeks except when overtime is necessary to meet a project deadline. The peak work period is during the summer months when weather conditions are most favorable. However, it is not uncommon for the surveyor to be exposed to adverse weather conditions.
Some survey projects may involve hazardous conditions, depending on the region and climate as well as the plant and animal life. Survey crews may encounter snakes, poison ivy, and other hazardous plant and animal life, and may suffer heat exhaustion, sunburn, and frostbite while in the field. Survey projects, particularly those near construction projects or busy highways, may impose dangers of injury from heavy traffic, flying objects, and other accidental hazards. Unless the surveyor is employed only for office assignments, the work location most likely will change from survey to survey. Some assignments may require the surveyor to be away from home for periods of time.
Surveyor Career Outlook
The U.S. Department of Labor predicts the employment of surveyors to grow about as fast as the average occupation through 2014. The outlook is best for surveyors who have college degrees and advanced field experience. Despite slower growth, the widespread use of technology, such as the Global Positioning System and Geographic Information Systems, will provide jobs to surveyors with strong technical and computer skills.
Growth in urban and suburban areas (with the need for new streets, homes, shopping centers, schools, gas and water lines) will provide employment opportunities. State and federal highway improvement programs and local urban redevelopment programs also will provide jobs for surveyors. The expansion of industrial and business firms and the relocation of some firms to large undeveloped tracts will also create job openings. However, construction projects are closely tied to the state of the economy, so employment may fluctuate from year to year.
For More Information:
- American Congress on Surveying and Mapping
- American Association for Geodetic Surveying
- National Society of Professional Surveyors
- Bureau of Land Management
- U.S. Geological Survey