Item 09 - Tx DOT Advance Funding Agreement for IH-35 Water & Wastewater Improvements — original pdf

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Item 9 Water & Wastewater Commission: May 20, 2026 Council: May 28, 2026 Posting Language ..Title Recommend approval to authorize negotiation and execution of an Advance Funding Agreement with Texas Department of Transportation for water and wastewater capacity improvements associated with the relocation and adjustments of existing lines and appurtenances in conflict with the Interstate Highway 35 Capital Express University Roadway Project in the amount of $4,551,603 plus a contingency of $455,160 for a total amount not to exceed $5,006,763. ..De Lead Department Austin Capital Delivery Services Department. Fiscal Note Funding in the amount of $5,006,763 is available in the Fiscal Year 2025-2026 Capital Budget of Austin Water. Prior Council Action: N/A. Council Committee, Boards and Commission Action: May 20, 2026 - To be reviewed by the Water and Wastewater Commission. Additional Backup Information: The roadway in this Advance Funding Agreement was identified as a transportation improvement project by TxDOT. Austin Water’s existing water and wastewater lines in conflict with the TxDOT transportation improvements are required to be relocated to accommodate the proposed improvements. This agreement will allow water and wastewater infrastructure capacity to be increased as a part of the relocation. Executing this Advanced Funding Agreement will bring together the efforts of TxDOT and Austin Water in the design and construction of the roadway improvement and utility adjustments to reduce impacts to the public and reduce cost. This project includes the relocation and adjustments of existing water and wastewater lines along IH-35 from Martin Luther King Blvd. (MLK Blvd) to US290 East, also known as IH-35 Capital Express University Project. The work consists of relocating and construction of approximately 21,009 linear feet of water lines, ranging from eight inches to forty-eight inches in diameter, and approximately 7,617 linear feet of wastewater lines, ranging from eight inches to thirty inches in diameter, along with associated appurtenances, all located within the IH-35 right-of-way. The roadway project is federally funded, according to the approved Standard Utility Agreement and in accordance with the regulations for federally funded projects, TxDOT is responsible for providing 100% of the engineering and construction costs as well as reimbursing the city for inspection, administrative cost and all associated soft costs of the projects, except all costs associated with the betterments. The project provides an opportunity for Austin Water to upgrade its existing infrastructure to better serve the growing Austin Metropolitan area. The requested upgrades and additions are considered “betterments” and will be constructed by TxDOT as part of the project and funded by Austin Water. Of the entire 21,009 linear feet of water lines, ranging from eight inches to forty-eight inches in diameter, and approximately 7,617 linear feet of wastewater lines, ranging from eight inches to thirty inches in diameter, the betterment portion of the project includes the construction of approximately 16,913 linear feet of water lines, ranging from twelve inches to thirty-six inches in diameter, and approximately 6,022 linear feet of wastewater lines, ranging from eight inches to thirty inches in diameter.  Item 9 Water & Wastewater Commission: May 20, 2026 Council: May 28, 2026 The scope also includes the installation of new appurtenances, including service lines, manholes, gate valves, wet connections, and air release valves within the project limits. The construction of the roadway improvement of IH-35 from MLK Blvd to US 290 East is tentatively scheduled to start within six to eight months after the TxDOT letting process starts. The letting process is tentatively scheduled for July 2026. The water and wastewater line relocations and construction are scheduled to be done first as part of the roadway improvement construction. All dates are dependent upon TxDOT design and construction contracts. This project is located within the Austin Full Purpose Jurisdiction of Council Districts 1, 4, and 9. TXDOT IH35 CapEx-Cen University Relocation: MLK to US 290 E. Map CIP ID 3212.204