Res 2016-165/approving an interlocal agreement with the Guadalupe-Blanco River Authority in an amount not to exceed $313,450.00

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Guadalupe -Blanco River Authority (GBRA) is the non -Federal Project Sponsor. The feasibility phase is cost -shared equally between the Project Sponsor and the Federal government through the General Treasury with the exception of the Independent External Peer Review (IEPR). Work performed on the project will either be cost -shared with the NFS or performed and awarded cash equivalent credit in the form of Work -in -Kind (WIK). Therefore, the current Feasibility Cost Sharing Agreement (FCSA) will need to be amended executed between the Federal government and the GBRA detailing the amount of WIK estimated for the project duration. It is anticipated that the FCSA will be amended in December 2016. The Project Sponsor will review and assist in the development of all scopes of work for studies associated with the Feasibility phase. The Project Sponsor, concurrently with the USACE, will perform periodic reviews. The reviews will focus on the study schedule, engineering analyses, cost estimates, economic analyses, and environmental analyses. The Project Sponsor will participate on the PDT and provide several agreed upon study activities. Study Scope: The Guadalupe -Blanco River Basin drains approximately 6,000 square miles and touches portions of fourteen counties in the south-central region of Texas, seven of which are in the GBRA service area: Comal, Hays, Caldwell, Guadalupe, Gonzales, De Witt, and Victoria. The major communities in the proposed study area include Martindale, Luling, New Braunfels, Seguin, Gonzales, Cuero and Victoria, City of San Marcos and the City of Wimberley. This area of south-central Texas lies between the Edwards Plateau and the southern Black Prairie region. Elevation ranges from 60 to 1500 feet above sea level. Rainfall averages 33.75 inches per year compared to the Texas average of 21 inches per year. This flood damage reduction study seeks to assess and reduce flood risks to life, property and the environment in a comprehensive manner for the watershed. As such, there are multiple entities participating in the study with GBRA. This Project Management Plan is the scope of the study to focus on three damage centers in the Basin and the final array of alternative plans and will consist of the various viable combinations of the structural and non-structural measures; all structural measures would be stand-alonealternatives as well as utilized in combination with other measures. Within the structural measures, there are 9 possible stand-alone and combination alternatives (Table 1). Each of these alternatives would also be analyzed individually and in combination with the array of non-structural measures Draft PMP ® XX October 2016