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Closed storm sewers.

Oklahoma City Municipal Code § 16-13
in effect
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§ 16-13. - Closed storm sewers. (a) Closed stormwater facilities and systems must be constructed of precast or prefabricated pipe or cast-in-place or precast, closed box culvert design in conformance with DCM, and construction specifications and requirements. Stormwater facilities and systems carrying runoff from streets must be designed to accept the run-off from a 25-year frequency rain event for the drainage area involved. Provided that in sump areas the stormwater facilities and systems must be designed to convey the runoff from 50-year frequency storm event with an overflow structure provided in accordance with the DCM. (b) Stormwater facilities and systems shall provide an HGL analysis as set forth in the DCM. (c) Curb opening of flume and bollard spacing shall be designed according to DCM. (Ord. No. 27691, § 2, 9-24-24)
Source: City of Oklahoma City, Municipal Code and City Charter (Municode Library, library.municode.com)URL: https://library.municode.com/ok/oklahoma_city/codes/code_of_ordinances?nodeId=OKMUCO2020_CH16DRFLCO_S16-13CLSTSEFetched: 10/28/2026

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16-13 | Corpus