Michael Lettner, P.E., S.E.

Michael is a Structural Project Manager and has over 15 years of experience in structural design on various projects including bridges on city streets, county roads, and state and interstate highways, pedestrian bridges, retaining walls, reinforced concrete boxes, and parking structure inspection. Michael has worked with turnpike, state, and city authorities on projects ranging from pedestrian bridges and box culverts to interstate interchanges and river crossings.  He has been involved in projects from concept development through preparation of construction documents to construction administration and has developed bridge assessments and construction plans for the rehabilitation of various bridges. Michael has worked on a variety of bridge types including steel w-beams, steel plate girders, slab span, and pre-stressed concrete beams utilizing spread footings, piles, and drilled shaft foundations. He is a licensed Professional Engineer in Oklahoma, Kansas, and Arkansas.