I think the above is excellent advice. Looking at the Industrial Engineering Curriculum at the University of Oklahoma, the requirements for Mathematics are Calculus I, II, III, Math Elective; Physics I, II for Engineers; General Chemistry, Statics, Applied Engineering Statics, Mechanics of Materials, Thermodynamics, Fluid Dynamics, etc. These are some very challenging prerequisites and Engineering courses. The OP SAT scores, especially the SAT Math score, is an area of concern, especially if he did not do Pre-calculus and/or AP Calculus AB/BC in high School.
BS IE (Degree Plan)
http://www.ou.edu/content/coe/ise/student_resources/undergraduate.html