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December 15, 2014 Bowers Museum, SSA Project #14048 SALLY SWANSON <br />An•accessible ROT is required to maintain specific clear and level spaces used for turning and <br />maneuvering. The space required is commonly considered as a circular space that is 60" in diameter <br />or a T- shaped space that fits within a 60" square. The leg and top of the T -shape are each 36" wide <br />(see figure below). <br />Turning spaces are allowed to overlap required knee and toe spaces and, with limitations, doors are <br />allowed to encroach into the required area. Turning and maneuvering spaces are subject to surface <br />condition requirements and they must be level (1:48 or 1:50 maximum slope in any direction and <br />depending upon the date of applicable regulation). The surface may not contain any abrupt changes <br />in level, have items projecting into the space (again with limitations) or have unmitigated hazards <br />present. <br />Requirements for turning and maneuvering spaces generally include, but are not limited to, the <br />following conditions and /or locations: <br />• Doorways <br />• Landings <br />• ROT with passing space <br />• ROT with door encroachment <br />• Constricted ROT <br />• Projections in ROT <br />Samples of required turning and maneuvering spaces are as follows: <br />CIRCULAR SPACE <br />raa <br />T- SHAPED SPACE <br />4 <br />i <br />f <br />December 15, 2014 SSA Project #14048 Page 18 of 28 <br />