ABET's criterion requires engineering students to possess several technical "hard skills" as well as nontechnical "soft skills" upon their graduation, with the former learning outcomes typically easier to evaluate and assess than the latter. This paper presents rubrics and assessment methods using engineering courses for evaluating the soft-skills-program learning outcomes engagement in lifelong learning competencies, communication, and the impact of engineering solutions. The assessment of the lifelong learning student outcome is addressed using results from a set of semester-long assignments in a fluid mechanics course. The recently developed and adopted course, Engineering Technical Writing and Presentation, in which students learn to develop an effective writing process for writing engineering documents in future courses and industry, is used in the assessment of competencies in effective oral and written communication skills. The senior capstone project, which typically assesses teamwork, now requires students to write an impact statement that is used in the assessment of skills such as identification of need and the positive and negative impacts on humankind, environment, and economy. Rubrics to assess and evaluate these soft-skill learning outcomes, along with findings from the current semester where available are presented in the paper.