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ORDINANCE NO. 89 - the_ standards_ of Zone A requirements -set out as §21J_16(b)_ above. 2) -All new construction and substantial ---------------------------------------------- improvements of residential structures within Zones Al -30, -------------- AE, and AH on -the -County -FIRM -shall -have -the -lowest -floor (including basement) elevated to or above the base flood level. )—Al -1 --new r- on s tr uc t4-onand subst-ani-i-a-I- improvements of nonresidential structures within Zones Al -30, AE, and AH on the County's FIRM -shall -(i)- have -the lowest floor, including basement, -elevated -to or -above -the base flood level, or (ii) to ether with attendant utiIit and -sanitary -facilities, _ be designed so -that -below -the -base flood level of the structure is watertight- with --walls substantiallyimpermeableto _the -passage -of water -and with structural components- having the capabilityof -resisting - hydrostatic and -hydrodynamicloads_and-effects-of-buoyancy. - (4) Where a nonresidential structure is intended -------------- to- be -made_ watertig_ htbelow_ the base flood level, (i) a - - - ------------------------- registered -professional -engineer or architect -shall develop n -d nr—rev-i-ew structUra-I desi-gn, spec_i_fi`c_at_i-ons,-and-plans for the construction, and shall certify that-the_design_and methods --of- ---- construction are in accordance with accepted -------------------------------------------------- standards -of -practice for meeting the applicable provisions of §211-16(c)(3)(ii) or §214-16(c)(8)(ii), and (ii) a record of such certificates which includes the specific_ elevations ------------------------------------------ (in relation to mean sea level) to which such structures are --------------------------------------------------------- flood-proofed ---shall -- be --maintained-- by__ t he -- Community Development Director. (5)--- All-- new --construction _-and-- substantial improvements__ that fully enclose_ areas below the lowest floor that are subject__ to flooding_- shall -be_ - designed to automatically equalize_ hydrostatic flood - forces-on_exterior wa I -I s- by a l I ow i-n� _forte-he---en#-r"nd—e-x i �o-f-f-I-oodwa-tex-s-. Designs _for meeting this --requirement must _-either be CODING: Words in type are deletions from existing law; words underlined are additions. smeadsoft Reprint Date: Wednesday, August 14, 2013- 11:17:41 - OfficialDocuments:693, Attachment Id 0, Page 6