Texas can’t manage its water future with fragmented solutions.
Rapid population growth, aging infrastructure, prolonged drought, extreme flooding, declining aquifers, and rising demand across municipal, agricultural, and industrial sectors are converging into a statewide systems challenge. For decades, Texas approached water resource management as a series of independent problems. That model is no longer sustainable.
A more effective approach, consistent with OEI’s longstanding water resources practice, is to treat water as an integrated system, where infrastructure, natural resources, and operations are managed together rather than in isolation. This concept is the foundation of One Water. Solved.
Table of Contents
The Shift to a Connected Water System
The One Water approach reflects a systems-based strategy that aligns with OEI’s experience in hydrologic and hydraulic analysis, floodplain management, and water infrastructure design.
Rather than relying on single-purpose solutions, One Water integrates:
- Flood control systems
- Drought mitigation strategies
- Aquifer recharge and groundwater resource management
- Dam and levee rehabilitation
- Water reuse and storage
- Regional and inter-basin distribution
A connected water system is not a single project or program. It is a coordinated framework for managing the full water cycle.
How Are Texas Water Challenges Interconnected?
Texas does not face one water problem. It faces four interrelated challenges:
- Drought
- Flooding
- Aging dams
- Declining aquifer levels
These challenges are not independent. As identified in OEI’s Fourfold Solution framework, each condition influences the others and, importantly, can help solve the others when managed collectively.
For example:
- Floodwater that is currently unmanaged represents an untapped supply
- Aging dams represent underutilized infrastructure capacity
- Aquifer depletion reflects missed recharge opportunities
Texas Water by the Numbers
Key indicators reinforce the need for a systems-based approach:
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Texas population projected to exceed 51 million by 2070
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More than 7,000 regulated dams statewide
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Increasing frequency of severe drought and rainfall events
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Aquifer withdrawal in many regions exceeds natural recharge
Drought: A Supply Constraint Amplifier
Texas has always experienced hydrologic extremes, but population growth and economic expansion are intensifying the impacts.
During the 2011 drought, the state consumed approximately 59% of existing lake capacity, highlighting how quickly reserves can be stressed.
Demand pressures continue to increase due to:
- Urban population growth
- Agricultural irrigation requirements
- Industrial water use
- Higher temperatures are driving peak demand
Texas remains vulnerable to short-duration supply failures driven by prolonged drought cycles.
Flooding: An Underutilized Resource
At the same time, Texas experiences extreme rainfall events that generate significant volumes of unmanaged runoff.
OEI’s Fourfold framework highlights that major storm events can produce water volumes that far exceed existing storage capacity, with much of that water flowing into the Gulf unused.
A One Water system reframes flood management as an opportunity to:
- Capture and store excess runoff
- Reduce downstream flood risk
- Recharge aquifers with compatible water quality
- Support long-term supply resiliency
Aging Dams: From Liability to System Asset
Texas infrastructure includes thousands of dams, many constructed decades ago and approaching or exceeding their intended service life.
OEI’s dam and levee safety work shows that these structures are already critical to flood control, water storage, and public safety and can play an even larger role when modernized.
Rehabilitation and coordinated operation allow dams to:
- Improve flood attenuation
- Increase water capture efficiency
- Support aquifer recharge strategies
- Extend asset life with sustainable maintenance
Coordinating rehabilitation and operations aligns with the concept of a connected water grid, where existing infrastructure is leveraged rather than replaced.
Aquifers: A Critical but Declining Resource
Groundwater remains one of Texas’s most valuable water assets, offering advantages such as reduced evaporation and lower surface impacts.
However, key aquifers, particularly the Ogallala, are experiencing long-term decline due to sustained withdrawal and limited natural recharge.
A One Water approach emphasizes:
- Active recharge strategies using captured surface water
- Integration of surface and groundwater systems
- Improved long-term sustainability of groundwater supplies
Why the Traditional Water Resource Management Approach Falls Short
Historically, Texas addressed water needs through reservoir expansion and localized infrastructure projects.
While still important, these strategies face increasing constraints:
- High capital costs
- Long permitting and construction timelines
- Environmental and land acquisition challenges
- Reduced predictability of hydrologic conditions
As identified in OEI’s work, the issue is no longer just supply but about system coordination and management.
The Future: Integrated Water Resource Management
Texas water challenges are interconnected, and solving them requires the same level of integration.
A resilient future will depend on:
- Connecting flood control and water supply systems
- Leveraging existing infrastructure through rehabilitation
- Expanding aquifer recharge as a core strategy
- Using data-driven modeling and analysis to guide decisions
- Coordinating across jurisdictions and stakeholder groups
Building a resilient future is the intent behind One Water. Solved. It is a shift from isolated solutions to a system-wide, engineered approach to water resource management.
Texas does not lack water; it lacks a fully integrated system to manage it.
By aligning flood control, drought planning, aquifer management, and infrastructure rehabilitation into a coordinated strategy, Texas can move toward a more reliable, resilient, and sustainable water future.