Fisher Construction Group of Burlington plans to build a 10,000-square-foot, 2-story office building at the Port of Vancouver to house its growing operations in Clark County.Expanding the company’s footprint in the area makes sense, Dan Powers, Fisher’s president and chief executive, said Monday.“It seems like it has a lot of growth opportunity,” Powers said. “We’re excited to get ourselves down there.”Powers said the company is in the process of acquiring about 2 acres from the Port of Vancouver to build the office structure as well as a 2,500-square-foot shop at Northwest 32nd Avenue and 38th Circle. Plans submitted to the city of Vancouver show expansion of the office and shop are possible in the future. The office building would have space for 38 vehicles.Construction would start this spring and be completed by autumn, Powers said. The Vancouver office would start with 40 to 50 employees and grow to about 100, he said.Fisher specializes in the design and construction of cold storage warehousing and food processing facilities. It counts Firestone Pacific Foods of Vancouver among its customers.In addition to its headquarters office in Burlington, the company has an office in Spokane. It has $400 million in sales last year, said Powers, who graduated from the University of Portland with an engineering degree.