HLS 23RS-1915 ORIGINAL 2023 Regular Session HOUSE CONCURRENT RESOL UTION NO. 145 BY REPRESENTATIVE HODGES FLOODING/CONTROL: Urges and requests the Department of Transportation and Development to evaluate all potential areas in the upper Amite River Basin on the potential to detain and retain stormwater runoff through a system of structures 1 A CONCURRENT RESOL UTION 2To urge and request the Department of Transportation and Development to evaluate all 3 potential areas in the upper Amite River Basin on the potential to detain and retain 4 stormwater runoff through a system of structures. 5 WHEREAS, the Amite River Basin covers portions of Amite, Lincoln, Franklin, and 6Wilkinson Counties in southwest Mississippi and East Feliciana, St. Helena, East Baton 7Rouge, Livingston, Ascension, and Iberville Parishes in southeast Louisiana; and 8 WHEREAS, the Amite River Basin primarily has flooding from two different 9sources, the upper and lower basin; and 10 WHEREAS, the upper basin flooding is caused from headwater flooding from 11rainfall events; and 12 WHEREAS, the Amite River Basin was particularly impacted by the catastrophic 13flood of 2016; and 14 WHEREAS, the Stormwater Master plan was launched in 2017 to address drainage 15problems in the most efficient and effective way possible for citizens; and 16 WHEREAS, the plan will be developed in three phases, each phase including 17numerous activities; and 18 WHEREAS, nearly all current efforts are focused solely on improving drainage to 19the point of exceeding the physical capacities of the lower watershed, and a responsible 20alternative is necessary; and Page 1 of 3 HLS 23RS-1915 ORIGINAL HCR NO. 145 1 WHEREAS, the Comite River Diversion Canal Project is underway to alleviate 2flooding that affects thousands of residents; and 3 WHEREAS, alleviating flooding in the Amite River is an essential component in 4preparation for the next major rain event. 5 THEREFORE, BE IT RESOLVED that the Legislature of Louisiana does hereby 6urge and request the Department of Transportation and Development to evaluate all potential 7areas in the upper Amite River Basin on the potential to detain and retain stormwater runoff 8through a system of structures. 9 BE IT FURTHER RESOLVED the study shall consist of the upper Amite River 10Basin North of the I-12 corridor where detention or retention of storm water runoff could 11have a positive and meaningful impact on the volume and timing of stormwater reaching the 12middle and lower Amite River Basin. 13 BE IT FURTHER RESOLVED the study shall determine if water supply sources and 14recreational facilities are able to be incorporated into the detention and retention structures 15and shall consider, at a minimum, the following: 16 (1) The development of a plan of managed storage or retention in sufficient volumes 17to reduce flood impact to downstream areas for multiple storm sizes and durations, including 18the development of conceptual designs and potential system operation guidance to minimize 19flows downstream. 20 (2) The evaluation of impacts by incorporating existing and proposed drainage 21improvements to quantify effects on the entire watershed. 22 (3) An evaluation of how benefits of detention and retention in the upper Amite 23River Basin could support further efforts to improve drainage or flood control efforts in the 24lower Amite River Basin. 25 (4) A determination of the viability of water supply and recreational facilities at each 26detention and retention structure. 27 (5) A determination of the social and economic impacts and benefits both upstream 28and downstream of each structure. Page 2 of 3 HLS 23RS-1915 ORIGINAL HCR NO. 145 1 (6) An evaluation of the environmental impacts and benefits upstream and 2downstream from each structure and an evaluation of the potential impacts and benefits to 3the aquifers. 4 (7) The development of the feasibility of design and construction with cost estimates 5of the detention and retention structures, in compliance R.S. 38:21. 6 BE IT FURTHER RESOLVED that the Department of Transportation and 7Development shall recognize and acknowledge the efforts completed by others by utilizing 8recently collected data, modeling efforts, and previous studies to reduce duplication of effort 9and accelerate the study process. 10 BE IT FURTHER RESOLVED that the Department of Transportation and 11Development shall provide a written report detailing the completion timeline and the 12associated costs for the evaluation of the upper Amite River Basin to the chairman of the 13House Committee on Transportation, Highways and Public Works and the chairman of the 14Senate Committee on Transportation, Highways, and Public Works by January 1, 2024. 15 BE IT FURTHER RESOLVED that a copy of this Resolution be transmitted to the 16secretary of the Department of Transportation and Development. DIGEST The digest printed below was prepared by House Legislative Services. It constitutes no part of the legislative instrument. The keyword, one-liner, abstract, and digest do not constitute part of the law or proof or indicia of legislative intent. [R.S. 1:13(B) and 24:177(E)] HCR 145 Original 2023 Regular Session Hodges Urges and requests the Dept. of Transportation and Development (DOTD) to evaluate all potential areas of the upper Amite River Basin as well as estimates of costs associated and a completion date. Requires the DOTD provide a written report detailing the evaluation and funding requirements for the upper Amite River Basin to the chairman of Senate and House transportation committees by Jan. 1, 2024. Page 3 of 3