Clapsaddle Engineering & Surveying Share: Civil EngineerSurveyor Clapsaddle Engineering & Surveying 19019 W. Darby Rd. Marysville, OH 43040 (937) 248-1065 (937) 747-2599 (fax) Hours: 9:00 am 5:00 pm About About Provided land surveying services in Union County for 47 years. Member Professional Land Surveyors of Ohio