Design an icon that symbolizes civil engineering. This icon should be simple , clear , and easily recognizable even in small sizes. It should capture the essence of construction and civil engineering. Consider using elements such as a construction helmet , a gear , or a measuring tool to represent the industry. Ensure the use of clean shapes and lines to convey professionalism and precision. Use a color scheme that is consistent with the construction theme and stands out against different backgrounds. Remember , the main goal is to create a distinctive icon that effectively represents civil engineering. ,