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City staff propose corrections to Perryman Ditch drainage maps; dozens of properties removed from regulatory floodplain
Summary
City staff told the public works committee they had identified mapping errors in parts of the Perryman Ditch drainage plan and proposed corrected atlas panels that remove certain areas that do not meet Tulsa’s 40-acre mapping threshold.
City of Tulsa staff presented a resolution to amend portions of the previously adopted Perryman Ditch master drainage plan and to update the City of Tulsa regulatory floodplain and drainage-sensitive-area maps (atlas panels 46, 47, 51 and 52).
Joan Gosvick of the Water and Sewer Department told the committee the master drainage plan’s technical consultant had identified areas that do not meet the 40-acre drainage-area threshold the city uses when mapping regulatory floodplain. “Per title 11A, when we map the City of Tulsa regulatory floodplain, we don't map anything that has less than 40 acres,” Gosvick said. She described the corrections as removing shaded areas on the atlas panels that should not have been included under the city’s mapping rules.
Gosvick said the correction will remove 29 structures from the City of Tulsa regulatory floodplain and 32 structures…
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