Tag Archive for: Texas Water Development Board

TWDB Publishing Nature-Based Solutions Guide

7/10/2026 – The Texas Water Development Board (TWDB) has published a Draft Nature-Based Solutions (NBS) Guide for Flood Resilience in Texas. It’s one of a number of documents in development for the next iteration of the State’s Flood Plan. And they are seeking stakeholder feedback.

The 314-page document is a 130 meg download, so don’t try to view it on your phone. But it is well researched, written, and illustrated. It seeks to equip local officials, engineers, community planners, and flood-related professionals with the knowledge they need to go beyond gray. Community activists may also find the Guide helpful in initiating discussions with those groups and pointing out opportunities.

Practical Step-By-Step Guide

The draft guide presents a clear framework for planning, implementing, and maintaining NBS as part of comprehensive flood resilience strategies. It includes solutions at both the watershed-scale and neighborhood scale. It is a practical step-by-step framework for:

  • Initiating
  • Planning
  • Implementing projects.

The guide contains 13 chapters in those three broad categories:

  • Laying the groundwork for NBS
  • Introducing NBS for flood resilience
  • Embracing guiding principles for NBS
  • Assessing ordinances incentives and Regulations
  • Establishing funding strategies
  • Integrating NBS into planning processes
  • Understanding flood risk and identifying flood-risk opportunities
  • Evaluating NBS feasibility and alternatives
  • Designing and building NBS
  • Applying watershed NBS design and construction considerations
  • Applying neighborhood NBS design and construction considerations
  • Applying coastal NBS design and construction considerations
  • Maintaining and adaptively managing NBS

The concepts are not theoretical. They are being successfully implemented across Texas – from floodplain buyouts to stormwater parks, regional watershed planning, and living shoreline projects. And the attractive illustrations from around the state encourage readers to dig in and explore.

Photo of Fort Work Stormwater Park courtesy of Freese and Nichols, Inc.

From Planning to Identifying Opportunities and Construction

As I was browsing through it, two chapters forced me to dig down immediately: Chapter 6 on Planning and Chapter 7 on understanding flood risk and identifying NBS opportunities.

A table in Chapter 6 mentioned examples of needs in the San Jacinto watershed including “Preserve and restore … river floodplains to improve … natural storage, and resilience to compound flooding.”

It was exactly what I have been advocating for the Scarborough property and San Jacinto West Fork sand-mining gauntlet. Then the chapter discussed ways to identify and reach out to stakeholder groups.

Chapter 7 includes sections on determining flood risks and identifying flood risk hot spots. It also included an “Opportunity Matrix Tool” to help convert “Needs” to “Solutions.”

Subsequent chapters include the nuts and bolts of how to do that. The work is broken up into quick, readable sections with charts, tables, graphs, photos and illustrations that help readers grasp concepts at a glance.

How Green and Gray Can Work Together

All in all, for those threatened by flooding and those who represent them, this guide presents a step-by-step framework for implementing nature-based solutions, either alone or in combination with other flood mitigation projects. The emphasis is on how green and gray solutions can work together. And that’s refreshing.

Click here to download the document. Warning 130 Megs.

Posted by Bob Rehak on 7/10/26

3237 Days since Hurricane Harvey

TWDB Awarding $312 Million for Flood Infrastructure Projects

5/22/2026 – The Texas Water Development Board (TWDB) is kicking off another round of funding for Flood Infrastructure Projects. $312 million is available for the 2026-2027 cycle.

Who Can Apply for What

Texas Cities, Counties and Districts/Authorities are eligible to apply for grants or 0%-interest loans. Four types of projects qualify:

  • Flood Management Evaluations (Planning studies)
  • Flood Mitigation Projects (Construction or rehabilitation of drainage infrastructure)
  • Flood Management Strategies (Projects that don’t fit within the first two categories, such as warning systems, stream gages, crossing barriers, public education, buyouts, etc.)
  • Federal Matching Grants (Funds for a portion of required federal matches associated with projects in one of the three categories above).

The New Plan for How Money Will Be Distributed

TWDB has published an “Intended Use Plan” describing how the money will be allocated. It includes a detailed scoring matrix for prioritizing projects. The Board will accept public comments on the plan and the matrix until Friday, June 12, 2026 at 11:59PM CDT.

Application for funding happens in two stages to make things easier. Applicants submit an abridged application for prioritizing proposed projects. The highest ranking projects will then be invited to submit full applications.

This year’s Intended Use Plan makes nine key changes compared to previous years.

  1. Removal of the Benefit Cost Analysis (BCA) from the Minimum Requirements section.
  2. FME projects are not subject to the notice requirement.
  3. Water conveyance projects have additional coordination and planning requirements.
  4. To ensure financial assistance is distributed more broadly, no single entity will be able to receive financial assistance for more than two abridged application requests within a single project category. The only exceptions: (1) federal match projects, and (2) funds remain.
  5. Projects will be prioritized into the four categories listed above
  6. Removal of predetermined funding goals per category.
  7. TWDB will invite at least one project from each regional flood planning group within each category, as funding permits.
  8. Funding caps will apply to grants, loans, and in-kind funding terms within each category.
  9. Grant qualifiers and grant percentage offerings were changed.

For More Information

See the full 23-page Draft Intended Use Plan for all the details.

Also see the new prioritization index for planning cycle and how to submit a Public Comment.

Finally this TWDB page contains information regarding everything having to do with the Texas Flood Infrastructure Fund. It includes examples of previously submitted/approved projects, a project dashboard, instructions on how to apply for grants and much more.

To date, TWDB has committed more than $832 million to Texas flood infrastructure projects.

Local Project Now in Construction

A key to the success of projects within the San Jacinto River Basin is working with the San Jacinto Regional Flood Planning Group. Timothy E. Buscha is currently the chair. Buscha said recently, “What we’re hoping for is a more streamlined way to get money to the projects that need it most.” And the first step? “We’re trying to get people to get a project into the system so that they’re eligible.”

Eventually that money works its way back down to communities where it can do some good. For instance, the Taylor Gully project, which just started construction in Kingwood, is a beneficiary of more than $10 million of Flood Infrastructure Funding, according to the TWDB dashboard.

Woodridge Village Construction on Day 2
Woodridge Village construction restarted this week!

Like most large infrastructure projects, funding came from a number of sources. In this case, it came from TWDB, the 2018 Bond Program, the U.S. Department of Housing and Urban Development, the Texas General Land Office, and the EPA. Congressman Dan Crenshaw was instrumental in securing the funding from HUD and EPA.

So, don’t sit back and wait for projects to come to you. Advocate for them. Get with your local officials while the getting is good.

Posted by Bob Rehak on 5/22/2026

3188 Days since Hurricane Harvey

Texas’ First State Flood Plan Released

8/15/24 – The Texas Water Development Board (TWDB) released the state’s first state flood plan today. And it’s full of eye-popping factoids.

For instance: More than a quarter of the state’s land and one sixth of the state’s population are in floodplains. So flood mitigation and prevention rank as high priorities. The entire plan stretches more than 500 pages. It listed and prioritized 147 pages of evaluations/studies, projects, strategies in tiny type.

Fifteen regional groups, each representing one of the major river basins in Texas, compiled the plan.

I will dig into more detail in coming days. But today, here are some quick facts from the executive summary to whet your appetite.

Structures Affected by Flooding

Planning groups identified approximately 878,100 buildings within the 1 percent (100-year) annual chance floodplain, and an additional 786,100 buildings within the 0.2 percent (500-year) annual chance floodplain. Total: 1,664,200.

Figure ES-4 from Executive Summary. Existing residential buildings in the 1% (100-year) annual chance floodplain.

More than 6,258 hospitals, emergency medical services, fire stations, police stations, and schools are within the 1 percent (100-year) and 0.2 percent (500-year) annual chance floodplains.

Regional flood planning groups also identified 9,322 low water crossings within flood hazard areas.

Increases in Flooding Forecast

The projected future condition 1 percent (100-year) annual chance floodplain is estimated to increase by 11 percent over the existing flood hazard area to a total of 62,245 square miles.

The regional flood planning groups project an increase of approximately 2.6 million people and 740,000 buildings in the 1 percent annual chance floodplain under projected future condition flood hazard.

Boggling Number of Recommendations

The regional flood planning groups recommended 4,609 flood risk reduction solutions: 3,097 flood management evaluations, 615 flood mitigation projects, and 897 flood management strategies in the regional flood plans with an estimated total implementation cost of more than $54.5 billion.

Floodplain Buildings

A total of 1,239 Texas communities and counties with flood-related authority participate in the National Flood Insurance Program.

More than 500 Texas entities have floodplain management standards that exceed National Flood Insurance Program minimum standards.

Costs

The plan includes recommendations in three categories: Evaluations/surveys; Projects, Strategies. The total cost of recommended:

  • Flood management evaluations exceeds $2.6 billion. 
  • Flood mitigation projects totals is more than $49.1 billion; nearly half of this cost is associated with the Galveston Bay Surge Protection Coastal Storm Risk Management project. 
  • Flood management strategies exceeds $2.8 billion. 

Planning groups reported sponsors requiring financial assistance with 80-90 percent of the costs to implement recommended flood risk reduction solutions.  

Potential Benefits

Planning groups reported an estimated 843,339 people and 214,292 buildings would be removed from the 1 percent annual chance floodplain if the state flood plan was implemented. 

Three regions identified potential water supply benefits for 37 recommended flood mitigation projects and one region recommended a flood management strategy with a potential water supply benefit. 

Legislative and Policy Recommendations Included

The flood planning groups included legislative, administrative, and policy recommendations in the regional flood plans, and their policy recommendations informed the development of many of the legislative and floodplain management recommendations in this plan.

For More Information

This page on the TWDB site contains all the elements from the first state flood plan. But warning, the file sizes are large. And the spreadsheet listing all the projects is wide and best viewed on a large monitor.

I have reduced the file size of three of Texas State Flood Plan docs and am posting them here to make them easier to download.

Posted by Bob Rehak on 8/15/24

2543 Days since Hurricane Harvey

More People Live in Texas Floodplains than Live in 30 States

According to Texas Water Development Board data compiled for the first state flood plan, 5.9 million Texans live in 100- or 500-year floodplains. That means more people live in Texas floodplains than live in 30 states. Yep. Thirty entire states have populations smaller than that of Texas floodplains.

Other key observations also emerge from the data:

  • One in five Texans lives in a floodplain
  • 42% of those live in the San Jacinto watershed.
  • The number of floodplain dwellers in the San Jacinto watershed alone exceeds the population of 15 states and the District of Columbia.

Where Biggest Problems Are

No other watershed comes close to 42%. To understand where the most people live with the most flood risk, see the table below. I compiled it from reports by the 15 regional flood planning groups in Texas.

Column 3 shows people living in 100-year floodplain (1% annual chance) and Column 4 shows the 500-year (.2% annual chance) floodplain population.

When looking at all people living in floodplains, Texas has almost 5.9 million. The last column shows where the largest concentrations of those people reside:

  • Only two other watersheds, the Trinity and Lower Rio Grande, reported double-digit percentages.
  • Trinity had 11.7%. 
  • Lower Rio Grande had 17%. 
  • No other watershed even made it over 5% of the floodplain dwellers.

The pie chart below really drives home the lopsided percentage of the state’s flood-plain dwellers living in the San Jacinto basin. San Jacinto is the large green area.

Compiled from data reported by each of Texas’ Regional Flood Planning Groups.

The San Jacinto basin has more people living in floodplains than the next five watersheds put together.

Possible Reasons for San Jacinto Issues

The TWDB report does not explain why. Likely, a number of factors contribute to the high percentage: 

  • The state’s largest concentration of people, jobs, industry
  • Rapid growth and lax enforcement of development regulations
  • Insufficient upstream mitigation
  • Proximity to coast, tropical storms/hurricanes
  • High rainfall rates
  • Low, flat terrain

Floodplain Dwellers as Percent of State’s Total Population

The U.S. Census Bureau now estimates that 30,029,572 people live in Texas. With almost 5.9 million of them living in a 100- or 500-year floodplain, that means a whopping one in five live in floodplains.

Of the 20% of Texans who live in floodplains:

  • 8% live in a 100-year (1% annual chance) floodplain
  • 12% live in a 500-year (0.2% annual chance) floodplain.

So, statewide, more people prefer to live in the less risky floodplains. But that’s not the case in every watershed. See the San Antonio watershed in the table above. Three times more people live in the riskier, 100-year floodplain than the 500-year.

Coastline Concentrations

The numbers also show concentrations of floodplain dwellers near other parts of the Texas coastline. 

  • The lower Rio Grande has 13 times more people living in a floodplain than the upper Rio Grande.
  • The lower Colorado has twice as many people living in a floodplain than the upper Colorado.
  • The lower Brazos has 2.5 times more people living in a floodplain than the upper Brazos.
  • The San Jacinto, which is one of the state’s shorter rivers and mostly near the coastline has the highest number of people in floodplains by far.

This 2014 NOAA study showed that 40% of the U.S. population lives in coastal counties. Density is far higher in coastal counties compared to inland areas. Coastal counties have 40% of the population but only 10% of the land. 

Coastal areas also face different issues than inland communities. According to NOAA, “These include increased risks from high-tide flooding, hurricanes, sea level rise, erosion, and climate change.”

Cost of Making People Safe 

The San Jacinto Regional Flood Planning Group recommended $46 billion worth of studies and mitigation projects in its regional plan. And the San Jacinto is just one of 15 watersheds in the state!

In sharp contrast to the magnitude of mitigation needs, the legislature voted only approximately $1 billion for flood prevention projects this year.

If I’ve learned one thing about flood prevention, it’s that nothing moves quickly.

Need for More Awareness 

And that gives me a sinking feeling – especially knowing how few people have flood insurance and how many more need it.

The floodplains in our area are huge. We have a lot of people. And thus, the scary numbers for the San Jacinto watershed. And also consider this. The numbers above are likely understated, because they only reflect riverine flooding and not street flooding from poorly maintained ditches.

With few affordable structural solutions in sight, TWDB should spend some of their funds on public awareness and education while we wait for projects to happen. Few people understand how much flood risk they live with…until they flood.

For the entire 63-page report, see TWDB Board Agenda/Item #8 from their July 25th meeting. (Caution: 33 meg download.)

Posted by Bob Rehak on 7/29/23

2160 Days since Hurricane Har vey

San Jacinto Regional Flood Planning Group Submits Final Recommendations

The San Jacinto Regional Flood Planning Group (SJRFPG) submitted its final recommendations to the Texas Water Development Board on January 10. The 316-page report includes recommendations on floodplain management evaluation, strategies and projects; the plan’s impacts; administration, regulatory and legislative recommendations; and financing.

I discussed the floodplain projects and impacts when I reviewed the draft plan in August of 2022. Not much as changed with the projects and impacts except for some minor details.

Now, with the state legislature in session, I would like to review the administrative, regulatory and legislative final recommendations in Chapter 8.

Legislative Recommendations

The SJRPG made four legislative recommendations to facilitate floodplain management plus flood mitigation planning and implementation.

Provide recurring biennial appropriations to the Flood Infrastructure Fund (FIF):

In 2019, the legislature appropriated money to establish the FIF. However, it did not appropriate additional funds in 2021. We need more money to fully implement the plans in the coming years.

Provide state incentives to establish dedicated drainage funding:

State law provides municipalities with the authority to establish local drainage utilities. Those that don’t use that authority generally rely on federal partners to fund floodplain management and regulatory programs. Or else they use some combination of general tax revenues and municipal bonds. The state should incentivize local communities to fund drainage projects rather than rely solely on federal funding.

Provide counties with legislative authority to establish drainage utilities/fees:

Municipalities have that power. But the unincorporated areas of counties do not. Give counties a reliable source of revenue to implement, maintain and repair drainage projects. Let them establish drainage utilities and drainage fees in unincorporated areas.

Update the state building code on a regular basis:

Texas is missing out on a billion dollars in FEMA’s Building Resilient Infrastructure and Communities (BRIC) Grants because of antiquated building costs. To take advantage of those grants, we need to update building codes. Adopt recent versions of the International Building Code (IBC) and the International Residential Code (IRC) at a minimum. Also we should adopt updated codes regularly in future legislative sessions.

Regulatory and Administrative Recommendations

The plan also made the following recommendations for regulatory and administrative changes.

Upgrade TxDOT design criteria:

Require all new and reconstructed state roadways to be elevated at or above the Atlas-14 1.0% annual chance flood level. Use the 0.2% level if Atlas 14 has not yet been adopted. TxDOT should also consider future conditions, such as urbanization and climate variability, in its roadway design criteria. TxDOT does not in all cases design roadways consistent with minimum NFIP requirements. TxDOT should strive to meet NFIP standards, especially for critical infrastructure such as evacuation and emergency routes.

Recommend Minimum Statewide Building Elevation Standards:

Recommend statewide minimum finished floor elevations at (or waterproofed to) the FEMA effective 2% annual chance flood except in areas designated as coastal flood zones. Use the 1.0% annual chance flood elevation where Atlas 14 has been adopted. Incentivize higher building standards. Recent historic floods and NOAA’s updated Atlas-14 rainfall probabilities reveal how much base flood elevations (BFE) can change over time. Jurisdictions that have required a freeboard over the current BFE have mitigated the risk of these increasing BFEs.

Clarify the process and cost to turn Base Level Engineering (BLE) data into Flood Insurance Rate Map (FIRM) panels:

BLE efficiently models and maps flood hazard data at community, county, watershed, and/or state levels. Currently, the state and FEMA are heavily investing in BLE. Clearly communicate to local jurisdictions how to implement this data in regulations and flood insurance rate maps. The steps remain unclear to many local jurisdictions.

Establish and fund a levee safety program similar to the TCEQ dam-safety program:

The TCEQ has a program to inspect dams that fall under its jurisdiction. Levees, on the other hand, are not subject to a similar safety program despite posing similar risks during flooding events.

Promote flood awareness, education, safety and outreach:

Partner with the Texas Floodplain Managers Association (TFMA) to promote public flood awareness, education, and safety in communities. Also, partner with Texas Association of Counties to do the same for Floodplain Administrators lacking technical flooding background (e.g., some County Judges). A well-informed public can make better informed personal choices regarding issues that involve flood risk and also will be more likely to support public policies and mitigation measures to reduce that risk.

Support ongoing education/training for floodplain management:

Provide no- or low-cost online resources including training modules, webinars, and print. Target training for non-technical Floodplain Administrators (e.g., County Judges who may serve as Floodplain Administrators but not have the necessary technical background). This would help to make effective floodplain management more prevalent across the state, especially in smaller counties.

Develop state incentives to participate in the National Flood Insurance Program (NFIP) and Community Rating System (CRS) program:

NFIP works with communities to adopt and enforce floodplain management regulations that help mitigate flooding. CRS encourages practices that exceed minimum requirements of the NFIP. Both programs are essential to achieving State Flood-Plan goals.  Implement State-led incentives to encourage communities to participate.

Develop a public database that tracks flood fatalities:

Fatalities have occurred during extreme flood events throughout the state’s history. A statewide database and tracking system with appropriate privacy restrictions could aid in future project planning and regulatory decision making. It could also help with future education efforts regarding actions that frequently lead to fatalities. An example is the importance of not attempting to drive through flood waters. 

Help smaller jurisdictions prepare grant and loan applications or make the process easier:

Provide training for Councils of Governments (COGs) to assist with the funding process. Developing applications for project funding can be difficult, especially for smaller jurisdictions with limited experience and access to funding to obtain expert assistance. Simplifying applications and making funding available specifically for application development would serve to make the process more accessible across the state and help close knowledge gaps.

Develop interactive models that use Base Level Engineering (BLE) data: 

Provide them to Regional Flood Planning Groups and their technical consulting teams. Standardize future conditions and land use data. The State’s and FEMA’s BLE data should be available in most parts of the state.

Allow partnerships to provide regional flood-mitigation solutions:

Flood risk does not recognize jurisdictional boundaries, yet many flood-mitigation programs prevent multiple jurisdictions from working together if they want to remain eligible state funding. Flood-mitigation studies and solutions require inter-jurisdictional collaboration. Update policies to encourage and permit it.

Next Step on Final Recommendations

These final recommendations sound like good ideas to me. Please communicate your feelings to your state senator and representative.

I have summarized the final recommendations above. To see their exact text, review chapter 8. Or see the entire report to put them all in context.

Posted by Bob Rehak on 1/22/2023

1972 Days After Hurricane Harvey

TWDB Approves $10.1 Million to Widen, Deepen Taylor Gully

At its first May board meeting this morning, the Texas Water Development Board (TWDB) approved a $10.1 million loan to the City of Houston to widen and deepen Taylor Gully.

Removing 400 Homes from Harm’s Way

The project should help alleviate flooding in Kingwood subdivisions such as Elm Grove, North Kingwood Forest, Mills Branch and Woodstream Forest. Residents in each village experienced disastrous flooding, not once, but twice in 2019. Widening and deepening the gully will increase its conveyance and take more than 400 homes out of harm’s way.

Connected Issues

However, the increased conveyance could also create the need for more more detention capacity to reduce the risk of flooding elsewhere.

This graph of Brays Bayou during the last century shows how runoff accelerates with development. Instead of floodwaters being stored in wetlands and forests, storm drains rush the water to the bayou. That results in higher, faster rises during storms.

Rapid upstream development has put pressure that never existed before on downstream homes. That development decreases the time of accumulation for floodwaters. Without more detention ponds to hold some water back, widening, deepening Taylor Gully could solve a problem in one place and create a problem in another. It could result in faster, higher flood peaks downstream.

Woodridge Village Could Be Part of Taylor Gully Solution

The logical place to put the extra floodwater detention would be on the Woodridge Village property that Harris County just acquired from Perry Homes. Currently, the property is about 40% short of the detention pond capacity needed to absorb a 100-year rainfall under new Atlas-14 requirements. And it has more than 170 acres available to meet that need.

Woodridge Village and headwaters of Taylor Gully (upper left) as they existed in January of 2020

The City loan which will be matched by money from the Harris County Flood Bond and, hopefully the federal government, can be used to address both conveyance and detention issues.

Delicate Dance Between Political, Project Leaders

Thanks to the TWDB, the bulk of construction money is now committed to the project through the City of Houston. That means the lead partner on this project, HCFCD, can tell its engineering contractor to accelerate planning.

Development of such projects is often like a dance between political and project leadership. Neither side can get out of step with the other for long.

At this hour, many details have yet to be worked out on the engineering and cost estimating side. But some of the political and funding clouds are parting enough to see a clear path to completion. However, one thing is perfectly clear.

As watersheds develop, it’s important to set aside room for detention pond capacity. Once a watershed is fully developed, homes and businesses must be bought out to create those ponds.

The buyouts increase the time and cost of projects exponentially.

For the minutes of today’s TWDB board meeting, click here and view Item #6.

Posted by Bob Rehak on 5/6/2021

1346 Days since Hurricane Harvey and 595 since Imelda

NWS Says Chance of San Jacinto River Flooding in Next Three Months is Minor

The National Weather Service (NWS) predicts only minor flood risk for both the West and East Forks of the San Jacinto through the end of May. That’s the good news.

NWS predicts only minor long range flood risk for the East (38.85%) and West Forks (26.22%) of the San Jacinto.

Drought Conditions Expanding Across Texas

But there is a downside: potential drought.

The reason for the low risk has to do with a below-average rainfall pattern across much of Texas. The Texas Water Development board posted two stories in the Texas Water Newsroom last week about the potential for drought. Large parts of the state are already severely behind on rainfall for the year and the pattern is expected to continue through May when weakening La Niña conditions could return us to normal.

Source: Texas Water Development Board as of end of February 2021.

The map above shows that most of the Houston area has received about 90% of expected rainfall year to date. But large parts of the state have received less than 20%. TWDB predicts those dark areas on the map will expand at least through May. At that point, TWDB predicts only the extreme eastern part of the state will not be in some kind of drought condition.

At the end of February, drought covered just over half the state, according to the TWDB. Statewide storage in our water-supply reservoirs is at 82 percent of capacity, about three and a half percentage points less than normal for this time of year. 

Drought Relief Could Come as La Niña Fades

Says Dr. Mark Wentzel, Texas Water Development Board Hydrologist, “The National Weather Service anticipates drought expansion across all but the eastern edge of the state by the end of May. Looking a little farther out there is some good news. La Niña conditions, that are at least partially responsible for drought in Texas, are expected to dissipate after April.”

So, the river flooding outlook could be very different by Hurricane season this year.

Did snow in February not help? Not really. Wentzel points out that snow is mostly air. It takes up to a foot of snow to equal and inch of rain.

Posted by Bob Rehak on 3/14/2021

1293 Days since Hurricane Harvey

TWDB Announces Members of New Regional Flood Planning Groups

This morning, at its October 1 board meeting, the Texas Water Development Board (TWDB) announced the members of its regional flood planning groups. Back in April, the TWDB announced the formation of 15 flood-planning regions and started soliciting nominations for members in 12 categories for each region.

Members of San Jacinto Watershed Regional Flood Planning Group

In Region 6, the San Jacinto watershed, the 12 initial members will be:

  1. Agricultural InterestsElisa Macia Donovan
  2. CountiesAlisa Max
  3. Electrical Generating UtilitiesPaul E. Lock
  4. Environmental InterestsSarah P. Bernhardt
  5. Flood DistrictsRuss Poppe
  6. IndustriesTimothy E. Buscha
  7. MunicipalitiesStephen Costello
  8. PublicGene Fisseler
  9. River AuthoritiesMatthew Barrett
  10. Small BusinessesJenna Armstrong
  11. Water DistrictsAlia Vinson
  12. Water UtilitiesTodd Burrer

Regional Flood Planning Group Responsibilities

According to the TWDB, the regional flood-planning groups (RFPGs) will meet as required to develop their own plans. They must:

  • Deliver the first regional flood plan no later than January 10, 2023
  • Adequately represent their associated interest group as it exists throughout the entire region
  • Consider all the region-wide stakeholders when making decisions
  • Commit to regularly attending their RFPG meetings
  • Understand and follow the state flood planning framework and process, as well as review the various materials that will be considered by the RFPG along the way
  • Solicit and consider stakeholder input in a transparent process
  • Participate in directing the work of technical consultants
  • Make decisions and recommendations regarding flood management goals and strategies and flood mitigation projects for their region
  • Ensure adoption of a regional flood plan that meets all requirements, including that no neighboring area may be negatively affected by an element of the regional flood plan

600 Nominees Considered

The TWDB selected RFPG members from more than 600 nominations. Several groups across the state will have smaller groups. TWDB either did not receive nominations or they could not find qualified candidates in some categories. For a complete list of members in all groups, see the last two pages of this agenda item from today’s TWDB meeting.

The TWDB will soon convene initial planning group meetings. All meetings will include opportunities for public input and will be open and transparent. Meeting notices will be posted to the TWDB’s Regional Flood Planning Group Meetings webpage. One of the many important considerations of the new flood planning groups will be the potential to include additional voting and/or non-voting members to the group.

Making Texas a Safer Place to Live

This is a significant step forward in making Texas a safer place to live. The distinguished members of the San Jacinto RFPG should represent the interests of this watershed capably. They have a little more than two years to formulate a plan. Game on.

Posted by Bob Rehak on 10/1/2020

1029 Days after Hurricane Harvey

How LIDAR is Used to Develop New Flood Maps

The Texas Water Development Board published a new video today in their Texas Water Newsroom. The title: “Data from the sky informs flood planning on the ground.” The video explains how Lidar (light detection and ranging) data helps develop accurate, up-to-date flood maps.

900X Higher Resolution

Surveyors can acquire high resolution data quickly from the air using pulses of light.

Lasers mounted under planes pulse hundreds of thousands of times per second producing incredibly detailed images of the terrain.

Texas Water Development Board

The data has one square-meter resolution compared to the old standard of 30 square-meters used in older USGS surveys. That’s a 900x improvement (1m x 1m vs. 30m x 30m) in resolution.

That increased resolution lets mapmakers see much more detail in the landscape, including low areas where water tends to pool during floods.

Play the Video

Filtering Out Buildings and Foliage Reveals Terrain

By filtering out portions of the spectrum, say those that have to do with buildings and foliage…

Screen Capture from TWDB Video

…scientists can reveal the terrain under them.

Lidar Now FEMA Requirement for Mapping

FEMA now requires the use of Lidar in floodplain mapping. As the state continues to grow rapidly, Lidar helps floodplain modelers better understand what is happening on the ground during a flood.

Inspiring the Next Generation

This is a fascinating little video. It has enough meat for curious adults. It also has a wow factor for students that might someday inspire interest in science, technology or engineering careers.

Updated Harris County Floodplain Maps

Harris County Flood Control District uses Lidar data to help develop the next generation of flood maps for the region. FEMA last updated the maps in 2007 as a result of massive flooding from Tropical Storm Allison. The District could release preliminary maps as early as 2022. But it could then take several more years for FEMA to review and approve them. The FEMA process involves a lengthy public comment period.

Source: Harris County Flood Control District.

Posted by Bob Rehak on 9/16/2020

1114 Days since Hurricane Harvey

Texas Water Development Board Wants Input on Their New TexasFlood.org

Hurry. TexasFlood.org Survey Closes September 8

Texas Water Development Board (TWDB) is trying to make flood-related information more accessible and user friendly via an update of their website,  TexasFlood.org. The refreshed website will become a one-stop shop for flood-related data and information throughout the state. Please review it and then give TWDB your input via this short survey. Make sure they’re providing the kind of information YOU want.

Home page of TexasFlood.org

Background

In 2019, the Texas Legislature and Governor Abbott greatly expanded the Texas Water Development Board’s (TWDB) role in flood mapping, planning, and financing.

In addition to existing flood programs, TWDB will administer a new state and regional flood planning process, increase flood-related financial assistance, and advance flood modeling and mapping capacities. 

As the agency expands data, information, and resources related to flooding in Texas, a key priority is to ensure that flood-related information is timely, user friendly, and easy to find.

TWDB

So judge the new website against those goals.


Purpose of Survey

The purpose of the survey is to understand:

  • What flood-related information you find most valuable
  • How best to present that information on the new version of the site.

Less Than Ten Minutes Will Help Texans Better Prepare for Next Flood

Until now, the TWDB web presence has largely been geared toward water professionals. This site however, targets ordinary citizens. It’s a fresh approach for the Board. The home page for instance, starts with a discussion of what to do before, during and after a flood. You can drill down from there.

The survey should only require 5 to 10 minutes. Hurry. The last day is September 8. So please take the survey today. Your help will benefit Texans for years to come.

If you are trying to find this website in the future, check out the Links page of this website.

Posted by Bob Rehak on 9/7/2020

1105 Days since Hurricane Harvey