into the basin 40 and 119 capping 1 by 8 by 8 cmus 76 in other embodiments cooling tower support structures can be built or added onto together sharing common walls in several configurations fig1 shows a two tower configuration having a footprint of 30 feet by 51 3 feet and requiring 2838 of the large cmus 74 fig1 amp fig1 show four tower configurations having footprints of 51 3 feet by 59 3 feet and requiring 5214 of the large cmus 74 the large unobstructed open chamber 18 of the invention is made possible by the use of very long bond beams 30 or lintels spanning for example 22 feet each in 3 spans of a preferred embodiment referring to fig5 the cooling tower structure comprises six lateral bond beams 30 or lintels constructed from deep lintel cmus 74 having a deep u201c u u201d shape that accommodates the placement of a reinforcement bar 90 such as steel rebar in a horizontal orientation spanning and connecting or bonding the units and filling with cement 78 mortar or grout in order to secure the cmus 74 and the reinforcement bar 90 in place where a deep lintel cmu 74 sits over another cmu such as at a corner it can be vertically secured by placing a reinforcement bar 90 through a notch 77 in the face.