Tulsa regulates grading and drainage through its building code (Title 51) and stormwater management regulations (Title 11-A). All grading work exceeding specified thresholds requires permits. Drainage must be directed to approved facilities and cannot adversely affect neighboring properties.
Grading permits are required for excavation or fill exceeding specified volumes. Grading plans must include drainage calculations and erosion control measures. Tulsa's clay soils and rolling topography require careful drainage design. Development must comply with the city's Stormwater Design Criteria Manual for post-construction drainage. On-site detention or retention may be required to manage increased runoff from development. The city reviews drainage for all building permits.
Grading without permits results in stop-work orders and fines. Diverting drainage onto neighboring properties can result in code enforcement action and civil liability. Failure to complete required drainage improvements may delay occupancy permits.
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