2023 Amended Regional Flood Plans
The 2023 Amended Regional Flood Plans posted below have been adopted by the regional flood planning groups and approved by the TWDB Board in March 2024. During the first cycle (2020-2023), additional funding was allocated to the Regional Flood Planning Groups in late 2022, enabling them to perform additional outreach, complete select flood mitigation evaluations, and recommend additional flood mitigation projects, and flood mitigation strategies in the plans. The 2023 Final Regional Plans were initially adopted by the regional flood planning groups and approved by the TWDB in July 2023. As of March 5, 2024, the 2023 Amended Regional Flood Plans supersede the January 2023 Final Plans.
Region 1 Canadian Upper Red
- Region 1 Canadian Upper Red Amended Plan (Volume 1: Main Report)
- Region 1 Canadian Upper Red Amended Plan (Volume 2: Appendix A)
- Region 1 Canadian Upper Red Amended Plan (Volume 2: Appendix B1.1-2)
- Region 1 Canadian Upper Red Amended Plan (Volume 2: Appendix B1.3-4)
- Region 1 Canadian Upper Red Amended Plan (Volume 2: Appendix B1.5)
- Region 1 Canadian Upper Red Amended Plan (Volume 2: Appendix B1.6-7)
- Region 1 Canadian Upper Red Amended Plan (Volume 2: Appendix B1.8-9)
- Region 1 Canadian Upper Red Amended Plan (Volume 2: Appendix B2)
- Region 1 Canadian Upper Red Amended Plan (Volume 2: Appendix C)
- Region 1 Canadian Upper Red Amended Plan (Volume 2: Appendix D1)
- Region 1 Canadian Upper Red Amended Plan (Volume 2: Appendix D2.1)
- Region 1 Canadian Upper Red Amended Plan (Volume 2: Appendix D2.2)
- Region 1 Canadian Upper Red Amended Plan (Volume 2: Appendix D3-4)
- Region 1 Canadian Upper Red Amended Plan (Volume 2: Appendix E)
- Region 1 Canadian Upper Red Amended Plan (Volume 2: Appendix F-I)
Region 2 Lower Red Sulphur Cypress
- Region 2 Lower Red Sulphur Cypress Amended Plan (Volume 1: Main Report)
- Region 2 Lower Red Sulphur Cypress Amended Plan (Volume 2: Appendix 1 Part 1-10)
- Region 2 Lower Red Sulphur Cypress Amended Plan (Volume 2: Appendix 1 Part 11-22)
- Region 2 Lower Red Sulphur Cypress Amended Plan (Volume 2: Appendix 2)
- Region 2 Lower Red Sulphur Cypress Amended Plan (Volume 2: Appendix 3)
- Region 2 Lower Red Sulphur Cypress Amended Plan (Volume 2: Appendix 4 Part 1)
- Region 2 Lower Red Sulphur Cypress Amended Plan (Volume 2: Appendix 4 Part 2)
- Region 2 Lower Red Sulphur Cypress Amended Plan (Volume 2: Appendix 4 Part 3)
- Region 2 Lower Red Sulphur Cypress Amended Plan (Volume 2: Appendix 5)
Region 3 Trinity
- Region 3 Trinity Amended Plan (Volume 1: Main Report)
- Region 3 Trinity Amended Plan (Volume 2: Appendix A)
- Region 3 Trinity Amended Plan (Volume 2: Appendix B1)
- Region 3 Trinity Amended Plan (Volume 2: Appendix B2)
- Region 3 Trinity Amended Plan (Volume 2: Appendix B3)
- Region 3 Trinity Amended Plan (Volume 2: Appendix C)
- Region 3 Trinity Amended Plan (Volume 2: Appendix D)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E1)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E2)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E3)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E4)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E5)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E6)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E7)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E8)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E9)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E10)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E11)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E12)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E13)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E14)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E15)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E16)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E17)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E18)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E19)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E20)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E21)
- Region 3 Trinity Amended Plan (Volume 2: Appendix E22)
- Region 3 Trinity Amended Plan (Volume 2: Appendix F1)
- Region 3 Trinity Amended Plan (Volume 2: Appendix F2)
- Region 3 Trinity Amended Plan (Volume 2: Appendix F3)
- Region 3 Trinity Amended Plan (Volume 2: Appendix F4)
- Region 3 Trinity Amended Plan (Volume 2: Appendix G)
- Region 3 Trinity Amended Plan (Volume 2: Appendix H)
- Region 3 Trinity Amended Plan (Volume 2: Appendix I)
- Region 3 Trinity Amended Plan (Volume 2: Appendix J)
- Region 3 Trinity Amended Plan (Volume 2: Appendix K)
- Region 3 Trinity Amended Plan (Volume 2: Appendix L)
Region 4 Sabine
- Region 4 Sabine Amended Plan (Volume 1: Main Report)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 1A)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 1B)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 1C)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 2A Part1a)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 2A Part1b)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 2A Part1c)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 2A Part2a)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 2A Part2b)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 2A Part3)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 2A Part4)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 2A Part5)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 2A Part6)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 2B-2C)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 3A-3D)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 4A-5D)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 5E-6A)
- Region 4 Sabine Amended Plan (Volume 2: Appendix 9A-0A)
Region 5 Neches
- Region 5 Neches Amended Plan (Volume 1: Main Report)
- Region 5 Neches Amended Plan (Volume 2: Appendix 1)
- Region 5 Neches Amended Plan (Volume 2: Appendix 2A Part 1)
- Region 5 Neches Amended Plan (Volume 2: Appendix 2A Part 2)
- Region 5 Neches Amended Plan (Volume 2: Appendix 2A Part 3)
- Region 5 Neches Amended Plan (Volume 2: Appendix 2A Part 3)
- Region 5 Neches Amended Plan (Volume 2: Appendix 2A-4C)
- Region 5 Neches Amended Plan (Volume 2: Appendix 5A-5B)
- Region 5 Neches Amended Plan (Volume 2: Appendix 5C)
- Region 5 Neches Amended Plan (Volume 2: Appendix 5D)
Region 6 San Jacinto
- Region 6 San Jacinto Amended Plan (Volume 1: Main Report)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 1: 0-1 to 1-4)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 2: 1-4 to 2A-2)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 3: 2A-3 to 2B-4)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 4: 2B-5 to 4-6)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 5: 4-7 to 5-4A)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 6: 5-4B to 5-4I)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 7: 5-4J to 5-4AF)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 8: 5-4AG to 5-4AI)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 9: 4AJ to 5-4AK)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 10: 5-4AL V1)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 11: 5-4AL V2)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 12: 5-4AL V3)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 13: 5-4AL to 5-4AM)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 14: 5-4AN to 5-4AT)
- Region 6 San Jacinto Amended Plan (Volume 2: Part 15: 5-5 to 10-14)
Region 7 Upper Brazos
- Region 7 Upper Brazos Amended Plan (Volume 1: Main Report)
- Region 7 Upper Brazos Amended Plan (Volume 2: Appendix A1)
- Region 7 Upper Brazos Amended Plan (Volume 2: Appendix A2)
- Region 7 Upper Brazos Amended Plan (Volume 2: Appendix A3)
- Region 7 Upper Brazos Amended Plan (Volume 2: Appendix A4)
- Region 7 Upper Brazos Amended Plan (Volume 2: Appendix A5)
- Region 7 Upper Brazos Amended Plan (Volume 2: Appendix A6)
- Region 7 Upper Brazos Amended Plan (Volume 2: Appendix A7)
- Region 7 Upper Brazos Amended Plan (Volume 2: Appendix A8)
- Region 7 Upper Brazos Amended Plan (Volume 2: Appendix A9)
- Region 7 Upper Brazos Amended Plan (Volume 2: Appendix B-C)
- Region 7 Upper Brazos Amended Plan (Volume 2: Appendix C-D)
Region 8 Lower Brazos
- Region 8 Lower Brazos Amended Plan (Volume 1: Main Report)
- Region 8 Lower Brazos Amended Plan (Volume 2: Appendix 0 Part 1)
- Region 8 Lower Brazos Amended Plan (Volume 2: Appendix 0 Part 2)
- Region 8 Lower Brazos Amended Plan (Volume 2: Appendix 0 Part 3)
- Region 8 Lower Brazos Amended Plan (Volume 2: Appendix 0 Part 4)
- Region 8 Lower Brazos Amended Plan (Volume 3: Appendix 1)
- Region 8 Lower Brazos Amended Plan (Volume 3: Appendix 2)
- Region 8 Lower Brazos Amended Plan (Volume 3: Appendix 3)
- Region 8 Lower Brazos Amended Plan (Volume 3: Appendix 4)
- Region 8 Lower Brazos Amended Plan (Volume 3: Appendix 5)
- Region 8 Lower Brazos Amended Plan (Volume 3: Appendix 9)
- Region 8 Lower Brazos Amended Plan (Volume 3: Appendix 10)
Region 9 Upper Colorado
Region 10 Lower Colorado-Lavaca
Region 11 Guadalupe
- Region 11 Guadalupe Amended Plan (Volume 1: Main Report)
- Region 11 Guadalupe Amended Plan (Volume 2: Appendix 1)
- Region 11 Guadalupe Amended Plan (Volume 3: Appendix 2)
- Region 11 Guadalupe Amended Plan (Volume 4: Appendix 3)
- Region 11 Guadalupe Amended Plan (Volume 5: Appendix 4)
- Region 11 Guadalupe Amended Plan (Volume 6: Appendix 5)
- Region 11 Guadalupe Amended Plan (Volume 7: Appendix 6)
- Region 11 Guadalupe Amended Plan (Volume 8: Appendix 7)
Region 12 San Antonio
Region 13 Nueces
Region 14 Upper Rio Grande
Region 15 Lower Rio Grande
- Region 15 Lower Rio Grande Amended Plan (Volume 1: Main Report)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix A1)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix A)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix A3)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix A4)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix A5)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix A6)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix A7)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix A8)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix A9)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix A10)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix A11)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix A12)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix B)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix C1)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix C2)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix C3)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix D)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix E)
- Region 15 Lower Rio Grande Amended Plan (Volume 2: Appendix F)