Ward County Highway Department’s UAS improves ease, safety of measuring stockpiles
Jill Schramm/MDN
Ward County’s UAS takes off Wednesday next to a gravel stockpile that the county is in the process of purchasing near Burlington. Flying at 107 feet, the drone captured 255 images in about 12 minutes to obtain data for computing the volume of the 40-foot high pile.
Drone technology is making certain tasks safer and easier for the Ward County Highway Department.
The department acquired an Unmanned Aerial System device primarily for use in measuring stockpiled road materials, such as gravel and millings. The Ward County Commission approved guidelines proposed by the department for use of the UAS on Aug. 21, and the department began using the device at the end of August.
“The main purpose is safety for employees when they are measuring stockpiles,” County Engineer Dana Larsen said. Measuring gravel piles from the ground is time consuming and hazardous, but other methods using airplanes or laser systems are expensive, he said. Accurate measurements are important in making purchases and maintaining inventory records.
“A secondary purpose would be if we ever had another disaster where you had damaged roads and bridges. You can quickly assess them and document them,” Larsen said.
The department had been looking at getting a UAS for the past three or four years.
Jill Schramm/MDN
Cole Ude with the Ward County Highway Department uses the Unmanned Aerial System control tablet to shut down a drone following a flyover of the nearby gravel stockpile Wednesday.
“We wanted to get to a point where we were comfortable,” Larsen said of the department’s patience in jumping into the technology. Cost also was an issue initially, but drones have become much more affordable. The department acquired its UAS for $2,031. The price includes a camera capable of taking overlapping photos – useful in measuring volumes- as well as extra batteries and an iPad mini for use as a controller.
Buzzing back and forth at 107 feet over a gravel stockpile recently, the UAS took 255 images in about a 12-minute flight. Ground measurements would have taken employees three to four hours.
In choosing to make use of UAS, the highway department opted to follow commercial-use guidelines of the Federal Aviation Administration. That means having a certified pilot and secondary observer and following rules related to height of flight and airport proximity.
The department has one employee who is certified, and the goal is to have a second employee complete the study and testing to also become certified. Individuals must re-certify every two years.
As a commercial operator, Ward County can fly drones up to about 400 feet. The guidelines approved by the commission require notification of any individuals who may be in or near the fly area. In measuring stockpiles, there is little likelihood of non-staff being present, but it might apply if a contractor crushing gravel happened to be in the area, Larsen said.
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Airman 1st Class Kyren Kincer, 5th Operations Support Squadron air traffic control journeyman, looks at the sky through binoculars at Minot Air Force Base, Aug. 21, 2018, shown in this photo by Airman 1st Class Alyssa M. Akers. Airmen are certified as air traffic controllers after four months of technical training followed by a year of on-the-job training at their assigned duty station.
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Airman 1st Class Isaiah Harper-Parson, 5th Operations Support Squadron air traffic controller, coordinates with a flight line airman at Minot Air Force Base, Aug. 21, shown in this photo by Airman 1st Class Alyssa M. Akers. Communication plays a major role in ensuring aircraft are flying safely.
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Ward County’s UAS takes off Wednesday next to a gravel stockpile that the county is in the process of purchasing near Burlington. Flying at 107 feet, the drone captured 255 images in about 12 minutes to obtain data for computing the volume of the 40-foot high pile.
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Cole Ude with the Ward County Highway Department uses the Unmanned Aerial System control tablet to shut down a drone following a flyover of the nearby gravel stockpile Wednesday.
Alex Eisen/MDN
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