Texas must spend an estimated $174 billion over the next 50 years to address its future water needs, according to the Texas Water Development Board’s new draft of the 2027 State Water Plan. The projected cost is more than double the price tag in the 2022 plan, even though state officials say the types of projects being recommended have remained largely the same.
The draft plan lays out strategies to meet water demand through 2080 under a worst‑case, “drought of record” scenario. It projects that if recommended projects are not built, “approximately one out of four Texans in 2080 would have less than half the municipal water supplies they will require during a [record-breaking drought].”
The document also warns that an extended dry spell could cause “an estimated $91 billion in economic damages in 2030,” which could steadily rise to $177 billion a year by 2080 if no action is taken.
To account for the enormous increase in cost since the 2022 plan, the TWDB cites inflation, extending the planning horizon, “lingering supply chain impacts following the COVID-19 pandemic,” and updated cost estimates from regional water planning groups.
The board also notes that many of the large, capital‑intensive projects recommended in prior plans have grown more expensive over time.
Despite the higher estimated costs, the plan says the overall mix of strategies is similar to previous state water plans.
The plan states that “conservation and reuse remain cornerstone strategies,” accounting for 43 percent of the strategies recommended. The document states that these are “cost-effective, largely drought-resilient solutions.”
Additionally, the plan cites development of surface water reservoirs as a major contributor to future strategies, “despite the considerable time and resources required to implement them.”
Other infrastructure‑heavy strategies include groundwater development, water treatment plant expansions, distribution system upgrades, desalination, and aquifer storage and recovery projects.
While the estimated cost of the plans has doubled, the TWDB states that “the types and magnitudes of recommended water projects remained similar to prior plans,” and “all future supplies recommended in these plans are additional water supply volumes,” not changes or recommendations regarding preexisting water supply infrastructure.
State planners emphasize that the $174 billion figure reflects the estimated capital cost of all recommended projects statewide through 2080, not a single state appropriation.
Much of that spending would occur at the local level and be financed through a mix of bonds, utility revenues, state financial assistance programs, and, in some cases, federal funds. The plan references existing tools such as the State Water Implementation Fund for Texas, or SWIFT, and newer funding mechanisms created by lawmakers in recent legislative sessions, but does not assign specific projects to particular funding sources.
As with prior cycles, the State Water Plan itself does not automatically fund any projects. Instead, it serves as a blueprint that makes local sponsors eligible to apply for certain types of state financial assistance. Projects must still be selected, financed, designed, and built by utilities, river authorities, and other local entities over the coming decades.
The Texas Water Development Board is accepting public comments on the draft 2027 State Water Plan until May 29, before it adopts a final version. Texans can review the document, see how their region is projected to fare under future drought conditions, and weigh in on the recommended strategies and costs before the plan is finalized.
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