Part 3Floodway Regulations § 3-23. In general. § 3-24. New private principal structures prohibited. § 3-25. All development requires offset. § 3-26. Engineering report. § 3-27. Map revision. § 3-28. Alternative analysis. § 3-29. Changes to existing structures. § 3-30. Prohibited structures. 3-31 to 3-32. {Reserved}