The Future that Houston Envisioned for 1990 … in 1968

1968 … the year that humans first traveled around the moon during the Apollo 8 mission. It was a triumphant time for America and Houston, home of the NASA “Manned Spacecraft Center,” its name at the time. We could do anything, it seemed. And we did.

1968 Plan for 1990

A reader recently sent me a preliminary plan developed in 1968 called Houston 1990. The Honorable Louis Welch was Mayor and Intercontinental Airport was still a year away from opening. And the Houston Planning Commission (which developed the plan) clearly had its eye on supporting future growth. The plan discussed new water sources, transportation corridors, green space, cultural amenities, employment centers, retail centers, housing choices and more.

Not all of ideas became reality. But most did.

Hits and Misses

For instance, the plan talks about an “emerging” office, retail and high-rise residential area near Westheimer and West Loop 610. (The Galleria?) It also mentions an emerging business area near Holcomb and Main (The Medical Center?) It predicted the continued dominance of single-family housing and the need outlying employment centers as Houston expanded so people could continue to live near where they worked.

For older Houstonians, this will be a nostalgic trip on Rocky and Bullwinkle’s “wayback machine.”

For younger Houstonians, it will be a lesson in the value of planning. For instance, future transportation options can be taken off the table if land isn’t set aside early enough and people build homes on it. That’s why it’s interesting to see something that looks like a network of greenbelts where the Grand Parkway is now.

But people also ignored parts of the plan. For instance, the need for flood control. The plan designated wide green spaces around bayous and creeks which were largely undeveloped at the time. They could have been used for detention ponds and channel expansion as development pushed outward.

Reservoirs that Never Happened

The plan also showed large reservoirs.

  • One was immediately west of what is now Kingwood where Spring and Cypress Creeks come together with the San Jacinto West Fork near I-69.
  • Another was west of a tiny town in the hinterlands called Tomball on Spring Creek.
  • A third was on the Brazos River near Richmond and Rosenberg.
  • And the fourth was a sprawling affair north of Lake Houston that took in portions of Peach and Caney Creeks, the San Jacinto East Fork and Luce Bayou.

Not one of these reservoirs was developed. And with few exceptions, none of the land along the bayous was set aside. The land along the rivers and streams became settled. And now those areas flood significantly during heavy rains.

Olive-colored areas represent open spaces recommended as set-asides for recreation, water resources, and flood control. However, little of the land was actually set aside for those purposes. The large green ring around the City is now the Grand Parkway.

Difficulty of Flood Mitigation After Development

The planned lake west of Kingwood is now sand mines and subdivisions. Lake Conroe would be built in 1973, five years later farther upstream. And Kingwood started building out in the early 1970s.

Building flood mitigation projects along these waterways now would be difficult. It often requires buyouts that can take a decade or more. This problem was foreseen. People were already building up to the edge of bayous, as you can see in the enlarged portion of the map below that shows Halls Bayou.

Halls Bayou in 1968. Note the green areas suggested as set-asides for “open space” along the bayou where development was already crowding the stream banks, leaving few options for flood control.

Many outlying areas that were sparsely populated in 1968 would follow the Halls Bayou pattern.

People would demand flood mitigation after, not before development.

However, that can become expensive and controversial as we saw this week in Huffman. Some areas there along Luce Bayou flooded badly during Harvey and Imelda. Harris County Flood Control District commissioned a flood-mitigation study that recommended a construction of bypass channel (see sections 4.1.3 and 4.1.4).

But local opposition developed from homeowners whose property would be affected. They fought the project. Harris County Precinct 2 Commissioner Adrian Garcia killed it in the 8/24/21 Commissioner’s Court meeting, citing local opposition. That left Huffman with no immediate flood-mitigation hopes after three years of study and planning.

For Complete 1968 Study

For a high resolution PDF of the entire 1968 plan and accompanying text, click here. (Caution: 33″x30″, 14 megabyte file. Best viewed on large screen. )

Posted by Bob Rehak on 7/27/2021

1459 Days after Hurricane Harvey

TD9 Dumping Up to 20 Inches on Caymans, Hurricane Likely in Gulf by Sunday

As of this 11 a.m this morning, the National Hurricane Center (NHC) says that Invest 99L has turned into Tropical Depression 9 (TD9). Satellite imagery now shows circulation in the area of low pressure over the west-central Caribbean which I posted about yesterday. Cuba and the Caymans have already issued tropical-storm warnings. Extremely heavy rainfall is expected there. And the storm should strengthen into a hurricane by Sunday. Yet the effects on the Houston region will like be felt offshore and in coastal areas.

Center of circulation starting to form. NOAA Satellite image as of 9:50 a.m. CDT on August 26, 2021.

TD9 Current Intensity and Location

The initial intensity of TD9 as of 11 a.m. Houston time is approximately 35 mph with gusts to 40. An Air Force Reserve reconnaissance aircraft is scheduled to be in the system later this afternoon to provide more information on the system’s structure and intensity.

TD9, now located just south of Grand Cayman, is moving northwestward at 13 mph. The National Hurricane Center (NHC) indicates the system should move steadily northwestward. That would bring the center near or over western Cuba late Friday, over the southeastern Gulf of Mexico on Saturday, and approaching the US Central Gulf coast on Sunday.

Models are in relatively good agreement regarding the track forecast for TD9. However, error at Day 4 is around 175 miles, so don’t focus on details of the long-range track forecast. Some shifts in the track are likely until the system consolidates and becomes better defined, according to the NHC.

The cone of uncertainty for TD9 at this point stretches all the way from Houston to Mississippi. Every point within the cone has an equal chance of being hit.

TD9 will move over warm waters of the northwestern Caribbean during the next 24-36 hours. This, in combination with low vertical wind shear and a moist environment, should allow for steady strengthening.

Rapid Intensification Likely in Next 48 to 72 Hours

NHC forecasts TD9 to become a tropical storm later today or tonight. It could approach hurricane strength as it passes western Cuba.

Once the system moves into the Gulf of Mexico, conditions support additional strengthening. The NHC forecast explicitly shows rapid intensification between 48 and 72 hours for now.

The NHC intensity forecast brings the system near major hurricane strength when it approaches the northern Gulf coast on Sunday.

NATIONAL HURRICANE CENTER

Most global models show significant intensification of TD9 over the Gulf of Mexico. As a result, there is higher-than-normal confidence that a strengthening tropical cyclone will be moving over the Gulf this weekend.

Key Messages

1. Tropical storm conditions are likely in the Cayman Islands tonight and western Cuba Friday, with dangerous storm surge possible in western Cuba.

2. The system will likely produce life-threatening heavy rains, flash flooding and mudslides across Jamaica, the Cayman Islands, western Cuba, and portions of the Yucatan Peninsula.

3. This system should approach the northern Gulf Coast at or near major hurricane intensity on Sunday, although the forecast uncertainty is larger than usual since the system is just forming. There is a risk of life-threatening storm surge, damaging hurricane-force winds, and heavy rainfall Sunday and Monday along the northern Gulf Coast from the Florida Panhandle to the upper Texas coast, with the greatest risk along the coast of Louisiana. Interests in these areas should closely monitor the progress of this system and ensure they have their hurricane plan in place.

Most of the Houston area has a 30-40% chance of experiencing tropical-storm-force winds from this storm.
Tropical-storm-force winds could arrive by early Sunday morning.

Likely Hazards in Islands and Mainland

The main hazards associated with TD9 as it passes Cuba and the Caymans will be:

STORM SURGE:

2 to 4 feet above normal tide levels in areas with onshore flow. Near the coast, the surge will be accompanied by large and destructive waves.

WIND:

Tropical storm conditions are expected in the Cayman Islands tonight and Cuba on Friday.

RAINFALL:

The depression is expected to produce total rainfall accumulations of 6 to 10 inches with maximum totals of 15 inches across Jamaica. Rainfall totals of 8 to 12 inches with isolated maximum amounts of 20 inches are expected across the Cayman Islands, western Cuba, and the northeast Yucatan Peninsula. These rainfall amounts may produce life-threatening flash floods and mudslides. Rainfall from this system is likely to begin impacting portions of the central U.S. Gulf Coast by early Sunday.

SURF:

Swells generated by this system will begin affecting Jamaica, the Cayman Islands and Cuba tonight and Friday. These swells are likely to cause life-threatening surf and rip current conditions.

Lindner Cautiously Optimistic At This Point

Jeff Lindner, Harris County meteorologist believes, “Impacts along the upper TX coast will likely be increasing swells and minor coastal flooding at high tide late this weekend into early next week.”

Monitor forecasts closely in case things change and be prepared for anything. We still won’t reach the peak of hurricane season until mid-September.

Statistical peak of Hurricane Season is September 10.

Posted by Bob Rehak at noon on 8/26/2021 based on information from NHC and HCFCD

1458 Days after Hurricane Harvey

So Far, 99L Headed Toward Gulf Along Same Track as Harvey

Jeff Lindner, Harris County’s meteorologist, forecasts a potential hurricane threat for the western and northwestern Gulf of Mexico early next week. And it’s following the same track as Harvey – almost four years later to the day.

Current Location of 99L in South-Central Caribbean

A tropical wave currently designated 99L and moving westward in the Caribbean off the coast of Columbia still has no center of circulation. However, global models indicate that it will continue to develop over the western Caribbean Sea either Friday or Saturday and move into the south-central Gulf of Mexico over the weekend.

Area of Investigation 99L is that large blob between the eastern tip of Cuba and the northern coast of Colombia.
99L on left should reach the southern Gulf by this weekend.

Still a Wide Range of Potential Tracks for 99L

There has been a significant shift during the last 24 hours to the right (east). The majority of the models now show 99L heading in the direction of the northwest Gulf of Mexico. However, models also show a wide range of potential tracks from northern Mexico to the Mississippi coast. 

The black line is the most likely track but uncertainty remains high.

So, a fair amount of uncertainty exists in the forecast, especially since there is such spread in the ensemble guidance. The lack of a defined surface center at the moment increases that uncertainty. 

Hurricane Harvey’s track in 2017. Note the similarity in area of origin and projected paths. Also note where Harvey intensified.

This weekend will be the fourth anniversary of Harvey. It’s eerie to note the similarities between that storm and this one.

Intensification Very Likely

Conditions over the Gulf of Mexico appear to be favorable for intensification. 

Nearly all global models see 99L turning into a hurricane. Some see it turning into an intense hurricane in the Gulf by early next week.

Lindner warns that It is too early to start discussing impacts because of the uncertainty on the track. However, he does see increasing tides and 10-15 foot waves from Sunday into Monday. Rain chances will increase starting today and remain high into the weekend. 

“Obviously,” says Lindner, “the forecast and potential impacts will have significant changes as the track become more clear in the coming days.”

Residents and interest along the TX and LA coast should review hurricane plans and make sure hurricane supplies are fully stocked. Monitor forecasts closely and frequently.

Posted by Bob Rehak on 8/25/2021 based on information from HCFCD, NOAA, NHC and Tropical Tidbits

1457 Days since Hurricane Harvey

City Starting to Excavate Bottlenecks Under Kingwood Drive

For more than a year, HCFCD has excavated Ben’s Branch in four different phases. However, significant sediment remained under the Kingwood Drive Bridge. That’s property owned and maintained by the City of Houston. And now they are excavating that to eliminate a bottleneck. Such bottlenecks can back water up, damaging homes and businesses.

Photographs by Stan Sarman on 8/24/2021. Taken along Ben’s Branch looking north toward Kingwood Drive.
The excavation also affected the area between the two halves of Kingwood Drive.
Sediment will drain and dry before being removed from the banks.

According to Sarman, who talked with the construction manager, after the crew completes work here, it will remove sediment from the bottleneck at the Kingwood Diversion Ditch next to the fire station on Kingwood Drive.

These are little things that make a big difference to people who previously flooded. And there were plenty of them along Ben’s Branch, especially in the Town Center Area. Some businesses still haven’t recovered. The shopping center north of these photos is still largely vacant thanks to catastrophic flooding during Harvey and a ditch whose conveyance was severely reduced, in part, by bottlenecks like this one.

Thanks go to Mayor Pro Tem Dave Martin and his staff at the District E council office.

Posted by Bob Rehak on 8/24/2021 with photos from Stan Sarman

1456 Days since Hurricane Harvey

Atlantic Basin Heating Up with Potential Tropical Activity

As we approach the 4th anniversary of Hurricane Harvey, the Atlantic basin is currently heating up with tropical activity. As remnants of one hurricane washing across New England, two more areas of concern move toward the Northeast. A third is heading toward the northwest Caribbean. It’s still too early to tell exactly where these storms will make landfall. But the presence of so many tropical disturbances signals the need to stay alert to daily weather forecasts.

Each of these storms has a 40-60% chance of tropical formation.

Five Day Outlook for Tropical Activity

8 PM outlook on 8/23/2021 indicates the storms heading toward the NW Caribbean have a 50% chance of tropical formation in the next five days. That’s up from 30% this morning.

Retreat of High-Pressure System Over Texas

National Hurricane Center (NHC) forecasts a tropical wave over the eastern Caribbean Sea will form a broad area of low pressure over the southwestern Caribbean Sea by late week. Thereafter, environmental conditions favor gradual development while the system moves west-northwestward to northwestward over the northwestern Caribbean Sea.

In addition to that, another major low pressure area over Mexico and the Bay of Campeche could move into the Gulf by this weekend though no tropical activity is forecast at this time.

Note massive low pressure system moving into Gulf.

Jeff Lindner, Harris County meteorologist, warns that as the high pressure ridge currently sitting over Houston begins to retreat north by Wednesday, “A series of tropical waves and disturbances will move from east to west across the US Gulf coast and into coastal TX from mid week onward. With a significant influx of Gulf moisture, showers and thunderstorms will return as early as Wednesday across much of the area and last likely into next week. Locally heavy rainfall will become an increasing threat by late week and this weekend with tropical moisture firmly in place over the region.”

Historical Norms for Late August

NOAA’s Climate Center shows that the projected path of the current areas of concern should follow historical norms for this time of the year.

This diagram shows the most likely areas for formation for hurricanes in August and their prevailing tracks. Source: NOAA’s Climate Center.

This is one of the reasons why.

Current sea surface temperatures in the Gulf are running 1.5 to 2+ degrees degrees above normal for the next seven days, with the warmer areas nearer the Texas Coast.

Historical Intervals Between Major Hurricanes

NOAA’s Climate Center shows the average interval for major hurricanes striking the Houston area is about every 25 years.

NOAA’s Climate Center also tracks the average return period for MAJOR hurricanes at various points along the coastline. They show that the Houston area can expect on average one major hurricane about every 25 years.

Of course, a hurricane doesn’t have to be major to cause major damage. Allison and Imelda were just tropical storms. And averages are just that – averages. Ike in 2008 and Harvey in 2017 each attained major hurricane status and hit Houston within 9 years of each other.

Posted by Bob Rehak on 8/23/2021 based on information from NHC and HCFCD

1455 Days since Hurricane Harvey

HCFCD Issues Update on Bond Spending In Advance of Harvey’s Fourth Anniversary

Last Friday, Harris County Flood Control District (HCFCD) issued a 37-page report detailing spending on 2018 flood-bond projects to date. It was attached to the agenda for the Harris County Commissioner’s Court meeting on Tuesday, August 24, 2021.

Total spent by watershed from all sources as part of HCFCD bond program. One of ten similar maps in the report.

Background

Late this week and early next will be the fourth anniversary of Harvey’s four day rampage through the Houston area. The storm broke so many records that NOAA retired its name. A year later, still reeling from the storm’s effects, Harris County voters approved a $2.5 billion bond issue to catch up with decades of chronic underfunding for HCFCD.

Since then, the rate of spending on flood mitigation projects has more than doubled. And the rate will accelerate even more as more projects move from engineering to construction.

High-Level Findings

Three years into a 10-year bond, HCFCD has spent slightly more than 30% of the money. That puts them exactly on track time-wise.

Among other things, the full report released last Friday shows that:

  • 175 of 181 bond projects have been initiated
  • $251 million in contracts have been awarded to engineering companies
  • $552 million in contracts have been awarded for construction of capital improvements and repairs.
  • 27 projects have completed, removing 11,000 homes from 100-year floodplains
  • Another 660 buyouts have been completed with another 662 in process.

Back in 2018, the Harris County Flood Control District (HCFCD) vowed to be open and transparent with bond funds. This report shows how, when, and where it spent the public’s money.

Accurate Snapshot of Progress

Until now, HCFCD’s website was the primary means for communicating with the public. But information was scattered across hundreds of pages and updates took place incrementally. That meant information on some watersheds was current and others could be months old. That made it difficult to get an accurate snapshot of progress.

To rectify this problem, HCFCD last week released the first in a series of new monthly reports. It gives everybody in every watershed information about what’s happening that affects them…at a glance.

Types of Information Included

The first report is 37 pages and tracks spending through the end of July 2021.

It’s broken down into a series of sections that include:

  • An introduction that summarizes active bond projects, grants, local partner funding, buyouts, contracts awarded, projects completed, community engagement, floodplain preservation, selective clearing and turf establishment
  • A visual timeline that tracks the progress of projects by month and year
  • Key performance metrics
  • Recent news
  • A GANNT chart showing the stages and progress of every single project approved by voters
  • Eight maps showing cumulative spending from different sources of funding
  • Two maps showing the location and spending to date on all active construction and maintenance projects in the county.

The Ultimate Go-To Doc on Where Your Money Has Gone

This is the ultimate go-to document for everyone who wants to know what’s happening near them. And HCFCD vows to update it monthly.

If you compare this to articles I previously published on funding, keep in mind that this data includes:

  • Four more months of spending
  • Only spending starting August 2018 (approval of the bond fund).

So numbers may vary from posts you see on ReduceFlooding’s Funding page. I also included historical spending going back to 2000 to help put the current spending in context.

Replacing Fear with Facts

All in all, HCFCD’s monthly spending reports will advance the public dialog. It will be good to have discussions based on facts, not just fear.

Flooding is one of the most terrible things that can happen to someone. It produces lasting trauma and alters the trajectory of lives.

To complicate matters, not many people understand what a flood control project is. They may see a jogging trail in a park and not realize it is a massive flood detention basin. They may not realize that a channel through their neighborhood has been widened. And they likely don’t know how to track historical gage data to see if their neighborhoods are flooding from bayous or streets.

This report won’t solve all those problems. But it will go a long way toward helping people understand they have not been forgotten.

Posted by Bob Rehak on 8/22/2021

1454 Days since Hurricane Harvey

Public Comment Period on Gates Closes Monday

The Army Corps’ public comment period for adding additional gates to Lake Houston will close on Monday, 8/23/2021. The Army Corps first posted the public notice on 7/22/21.

Public comment periods are not only for those who object to plans. The public may also support plans. And I plan to support the plan.

Cross section of proposed improvements to dam.

The Corps’ website contains the full public notice, which features a summary of the project, the project plans, and an analysis of the alternatives. These are much more thorough and detailed than any documents published to date. For the historical record, I have copied them to Reports Page of this website under the “Lake Houston Dam Spillway Improvement Project” tab. See:

Project Description

The City of Houston proposes to improve 1,000 feet of the uncontrolled Ambursen spillway with the installation of new, controlled, Obermeyer spillway gates along the western portion of the existing Lake Houston Dam structure.

To accomplish this, the existing spillway crest would be lowered approximately 3.5 ft and fitted with an Obermeyer spillway gate structure. To further stabilize the dam structure, 150,000 cubic yards of rubble backfill will be deposited within the same 1,000 ft of the existing concrete structure.

The temporary cofferdam would be installed in sections that would enable the construction of a single Obermeyer spillway gate at a time. To facilitate access from the downstream side, backfill would then be installed within the Ambursen bays and in the downstream concrete-lined channel.

The spillway crest of the existing Ambursen spillway would then be demolished and the new concrete crest with the associated Obermeyer spillway gates and hydromechanical works would be built. The timeframe to complete this project will be approximately 18 to 24 months.

Avoidance and Minimization of Negative Impacts

The City conducted a thorough and extensive planning process to design a project that avoids and minimizes impacts to wetlands, special aquatic sites, and Waters of the United States as much as possible and feasible, while also satisfying the need.

During Hurricane Harvey, rainwater entered the lake at a rate of 430,000 cubic feet per second. An estimated 20,000 homes and businesses were flooded upstream. The reservoir passed the equivalent of its own storage capacity every half hour.

Due to the large influx of water over a short amount of time, the Lake Houston Dam was not able to release water fast enough to protect area homes, businesses, and public infrastructure from floodwater. Improvements are needed to the Lake Houston Dam to enable controlled releases ahead of major storm events and to further stabilize the 70-year-old structure.

This 36-page analysis shows the alternatives considered by project engineers. It also contains a matrix comparing the pros and cons of 11 alternatives, and which among them was the Least Environmentally Damaging Practicable Alternative.

By improving the existing dam, floodwaters can be rapidly released under controlled circumstances or stored to meet drinking water needs.

Please Support

Lake Houston Area leaders identified the need for a larger release capacity early on as one of three primary objectives (upstream detention to slow down inbound water, dredging to speed up throughput, and more gates to speed up outflow).

Approximately 20,000 homes and businesses flooded when water could not get out of the lake fast enough. We need this project.

  • Benefits of the project include:
  • Reduction of flood heights
  • Protection of property
  • Faster release rate reduces uncertainty associated with pre-releases when attempting to add extra capacity to the lake in advance of approaching storms.
  • Saves water needed for drinking

How to Submit Comments 

To support this project, email comments to the Regulatory Division, U.S. Army Corps of Engineers, Galveston District by clicking this link:  Public Notice Comment Email. Make sure you reference the public notice number: SWG-2020-00271, and be sure to include your name address, and phone number.

Posted by Bob Rehak on 8/21/21

1453 Days since Hurricane Harvey

 

Education Going Higher; Construction Updates on Two New Schools

Two new schools in the Kingwood area are building up, not out. Hopefully, this trend will, in a small way, reduce the percentage of impervious cover and create room for detention ponds to capture stormwater runoff.

Earlier this week, I photographed Kingwood Middle School and West Fork High School construction. As of mid-August, the structural steel work for both is almost complete.

Kingwood Middle School Replacement

The site looks crowded now, but when the new three story facility is complete, athletic fields and a giant detention pond will replace the old facility.

Looking west toward Woodland Hills Drive. KMS Construction as of mid-August 2021
Looking east from over Woodland Hills
This view looking north makes it easy to compare the height of the old and new buildings.
The structural steel work has reached its eastern limit.

To see the progress, compare the pictures above to those in previous posts.

Humble ISD has set the target opening date of the new KMS for 2022.

New Caney ISD West Fork High School

Several weeks ago, New Caney ISD named its third high school the West Fork High School. It too will be a three story structure, and is going up between Sorters-McClellan Road and US59 south of Kingwood Drive.

Looking NNE over the new campus toward Kingwood Medical Center. Insperity, and Kingwood Drive. US59 in upper right.
Wider shot looking NNW toward the West Fork shows a large detention pond in the foreground is now grassed in. However, note sediment entering the pond through storm sewers that drain the site.
Looking SW toward Sorters-McClellan Road and West Fork. River is mostly hidden behind trees. For reference, note Costco in upper left.

Note the football field and track taking shape in the left middle of the frame and the field house still going up next to it.

To see the progress, compare the pictures in these posts:

New Caney ISD expects to complete construction by the summer of 2022.

Posted by Bob Rehak on 8/20/2021

1452 Days since Hurricane Harvey

One-Click Submittal for Suggested Public Comments on Proposed Sand-Mining BMPs

For those wishing to submit comments about sand-mining Best Management Practices (BMPs), but who may feel daunted by the complexity, I’ve compiled a list. If you use a computer-based email application, you should be able to submit it with one click.

To automatically submit the suggestions, click this link.


It should address and title an email, then automatically insert the recommended text shown below. Don’t forget to insert your own contact information at the end of the email, before hitting the send button.

I have not tested the automated link with all email apps, browsers and platforms. So if you run into problems, just cut and paste the text between the separators below. Again, don’t forget to add your contact information.

Please share this with all your friends, family and neighbors. Ask them to submit the comments and share it, too.

Deadline: 8/19/21. 


Dear TCEQ,

After reviewing the Draft Proposed BMPs for Sand Mining in the San Jacinto River Basin, I have several comments that I would like you to consider.

  1. Geographic area should include “all tributaries draining into Lake Houston,” not a limited subset.
  2. Include provision that steps up enforcement. Operators already routinely violate too many of these BMPs.
  3. Introduction: Put the need for BMPs in perspective by including a sentence or two that talks about the $222 million spent by Federal, State, and Local governments to dredge the San Jacinto.
  4. Introduction: Add this thought. “The presence of the Lake Conroe dam can lull operators on the West Fork into a false sense of security. During Harvey, Lake Conroe released 79,000 CFS. All by itself, that would have qualified as the ninth largest flood in West Fork history, even if not a drop of rain had fallen anywhere else in the watershed. Such high rates of conveyance lead to high rates of erosion and sediment transport that require operators to exercise extreme caution in this environment and closely follow the BMPs below.”
  5. Introduction, include a sentence to this effect. “When deviating from standard BMPs, the operator must file documentation with the TCEQ which will be posted for public inspection and obtain written approval from the TCEQ.”
  6. Introduction: In the bullet point after “Geographic Location,” replace “hydrogeology” with “Surface and groundwater hydrology.”
  7. Introduction: After the sentence which ends with “…implemented by the sand mining operators,” Include the following. “All BMPs must be submitted to the Executive Director (ED) of the program for review and approval.” 
  8. 2.1: Replace “next anticipated storm” with “must repair or replace controls immediately when damage is noted during weekly inspections.”
  9. 2.1.1: Define the 100-foot buffer zone as “…measured from the stream bank to the closest disturbed area…”
  10. 2.1.1: After “and 35 feet for intermittent streams” insert the following: “Wider buffer zones might be necessary where riverbank erosion rates are high.”
  11. 2.2: Change Site operators must “inspect disturbed areas” to “inspect and document disturbed areas.”
  12. 2.2: After “…All structural controls must be in compliance with local rules and permitting requirements,” add: “including special restrictions for construction in a FEMA-defined floodway.”
  13. 2.2: Require that operators inspect all structural controls “once every seven (7) calendar days.”
  14. 2.2.5: Specify that “operators must measure and document the depth of sediment basins at least once a year, as well as before and after major floods.”
  15. 2.2.5: Add: “Special consideration must be given to stability of the outer dike (or levee) separating the pits from the vegetated buffer zone adjacent to the river. Lateral erosion of the river can result in breaching of the dike and potentially rerouting the river through the pit area (pit capture).”
  16. 2.2.5: Specify what operators must do “prior to discharge” to have a “permitted” discharge.”
  17. 2.2.6: In the sentence that ends with “…will not erode the receiving stream,” add “…or adjacent properties.”
  18. 2.2.10: Detention ponds big enough to hold an inch of rain seem wholly inadequate in an area where Atlas-14 specifies 16.9 inches for a 100-year event. Harris County Flood Control District recommends minimum detention volumes for developments at .65 acre feet per acre. That’s about 8 inches of rainfall. Please modify required depth.
  19. 3.1: Specify that TCEQ must approve the mine plan.
  20. 3.1: Mention that building mines in floodways requires extreme precautions for virtually every facet of mining. (This section currently makes no mention of floodways, yet virtually all San Jacinto mines are at least partially built in floodways.)
  21. 3.1: Replace the sentence that starts with “An evaluation of…” with “The susceptibility for erosion of on-site soils and lateral erosion rates of adjacent rivers must also be known in the pre-planning stages. If parts of the proposed mine are located in a FEMA-defined floodway, hydrologic and hydraulic analyses performed in accordance with standard engineering practice must demonstrate that the proposed encroachment will not result in any increase in flood levels or erosion of upstream, downstream, or adjacent properties.”
  22. 3.2.1: After the sentence that ends with “…other than TCEQ hold jurisdiction,” replace the next sentence with “Additional erosion controls or increased buffer widths may be needed where river erosion rates are high, receiving streams are listed in the Clean Water Act (CWA) 303(d), or critical facilities (e.g. bridges, pipeline or utility corridors) are adjacent to the proposed operation.”
  23. 3.2.1: Complete the sentence that starts with “Understanding site drainage can be obtained by using…” with “existing LiDAR and aerial photo images.” Delete the part about USGS Topographic maps which show a series of contour lines. Then modify the next sentence in that paragraph to read, “These images (combined with lower resolution USGS topographic maps) can be used to determine slope of the  ground surface through the site to identify drainage patterns.”
  24. 3.2.2: After the sentence that ends with “…water supply wells are located nearby,” add this sentence: “If present, waste management units must be located a minimum horizontal distance from adjacent water wells, in accordance with 16 Texas Administrative Code Chapter 76.”
  25. 3.3: Say “Topsoil material MUST be temporarily stockpiled for future use in post-mining activities.”
  26. 3.3: Add this thought. “Stockpiles may not be located in floodways.”
  27. 3.3.2: After, “…diverting upslope water around a planned area for disturbance is also good practice,” add “however, care must be taken to not have the diverted water result in increased downslope flooding.”
  28. 3.3.3: Change the sentence that starts with “Stockpile protection is most effective when…”, so that it reads, “Stockpile protection  is most effective when stockpiles are not located on the FEMA-defined floodway, are located away from concentrated flows of storm water, drainage courses, and inlets, and when are properly protected with perimeter sediment barriers and covered.”
  29. 3.3.3: After the sentence that ends with “…geoscientists certifying BMPs at the site,” add another sentence that reads, “Additional buffer width or structures may be required where critical structures such as pipeline or utility corridors are located.”
  30. 4.1: Add: “Operators should not dredge a vertical wall at the edge of buffer zones. This can lead to cave ins at the edges that decrease the width of the buffer zones. It may also not leave enough room to taper slopes enough to plant vegetation in the post-mining phase.”
  31. 4.5: Add “All fuel storage tanks must be located outside of floodways.” 
  32. 4.5: Add “New floodplain and floodway maps for the San Jacinto region should be released sometime in 2022 or 2023. Floodways are expected to expand by approximately 50%. Take this into account when planning placement of storage tanks.”
  33. 4.5: Add “Remove all fuel storage equipment and tanks before abandoning a mine.”
  34. 4.6: Add new section that includes this thought. 
  35. 5: Change the first sentence in the introduction to say, “The Post-Mining Phase stabilization plan must be approved by TCEQ, subject to input from the landowner and downstream property owners.”
  36. 5.1: Change “may” to “must” in the second sentence and delete several subsequent words so that it reads, “The following guidelines MUST be used to meet site stabilization objectives.”
  37. 6: Replace the entire introduction with the following: “Prior to operations beginning at a sand mining facility site or portion(s) of the site, an initial stabilization report must be submitted to the executive director for review and approval at (Address). The Initial Stabilization Report must, at a minimum, include and demonstrate that the items described below in section 6.1 Report Requirements will be addressed. This initial report will be updated annually to reflect current mobilization and reclamation areas.”
  38. 6.1: Add: “After completion of mining, remove all vehicles and debris that could be swept downstream in a flood.”
  39. 6.1: Under Structural Controls, after the sentence that ends with “…manage remaining onsite drainage,” add another sentence. “This includes making sure the outer dike (or levee) that separates the abandoned pits from the adjacent river is not breached due to lateral erosion of the river.”
  40. 6.1: Under High Walls, after “The permittee shall demonstrate that all remaining highwalls are stable and safe,” add the following. “This may mean leaving enough buffer between adjoining properties to taper slopes to a gradient that will allow the planing of vegetative controls that prevent erosion.”
  41. 6.1: Add: “Conservation easements on buffer areas, placed before mining, could be utilized to ensure community protection. Conservation easements placed post-reclamation would ensure that site ecology would be monitored, and restoration activities completed. An accredited land trust involved as a conservation partner would provide third-party documentation of adherence to the ecological practices outlined in these guidelines and provide community oversight that is currently missing.”
  42. Glossary: Add “Floodway (Regulatory Floodway) – the channel of a river or other watercourse and the adjacent land areas that must be reserved in order to discharge the base flood without cumulatively increasing the water surface elevation more than a designated height.”

If you would like to provide your own public comments, email Macayla.Coleman@Tceq.Texas.gov with the subject line “BMPs Guidance Document” by the close of business tomorrow.

To see the complete text of all proposed BMPs, click here.

For more explanation about the recommended comments, see these posts:

  1. Scope and Need for Proposed BMPs
  2. Setbacks from Rivers
  3. Vegetative Controls
  4. Structural Controls
  5. Pre-Mining Planning
  6. Mining Phase
  7. Post-Mining Phase
  8. Final Stabilization

Thanks in advance for taking the time to help.

This company lost property (red circles) when a sand mine left highwalls around it that collapsed into the pit.
Photograph of same areas taken on 8/17/2021.

Each of the recommendations above has a story behind it like these pictures tell. Please help by submitting public comments.

Posted by Bob Rehak on 8/19/2021

1451 Days since Hurricane Harvey

The thoughts expressed in this post represent opinions on matters of public concern and safety. They are protected by the First Amendment of the US Constitution and the Anti-SLAPP Statute of the Great State of Texas.

Weekly Digest of Lake Houston Area Flood-Related News

Below is this week’s digest of flood-related news affecting the Lake Houston Area.

San Jacinto Regional Flood Planning Group

Save the date. The San Jacinto Regional Flood Planning Group (Region 6) will hold it’s next public meeting on Tuesday, August 31, 2021, from 6:30 to 7:30 PM. You must register here to receive meeting access information and an online calendar invitation.

The first regional flood plans will be due in January 2023, and the first state flood plan will be due to the Texas Legislature by September 1, 2024.

The upper watershed has a new representative to this group: Neil Gaynor from The Woodlands. Mr. Gaynor has a PhD in Geology and will serve the area well.

Liberty County Drainage District

According to the Bluebonnet News, on Tuesday August 10, Liberty County commissioners approved the creation of a drainage district to serve the entire county. County Judge Jay Knight is quoted as saying, “The goal is to mitigate flooding and enhance drainage in the entire county.” Commissioners appointed a temporary board to draw up by-laws. But the District must still be approved by voters, because this would be a taxing district.

“I don’t want Liberty County to be in the same situation as Harris County is in now with its drainage problems,” said Knight. “Now is the time for Liberty County while drainage improvements can be done cheaper and while land acquisition for those plans is much easier. It will be much more expensive if we wait….This gives us another way to make developers behave. I just wish it had been in place 20 years ago.”

Harris County Engineer Resigns

John Blount, the Harris County Engineer, resigned last week, continuing the alarming exodus of experience among Harris County department heads. When Russ Poppe, head of the Flood Control District, resigned in June, he received multiple honors and media recognition. So this time, the political leadership has reportedly put out a gag order on the media. But this letter went to Commissioners Court members and all department staff last Friday.

The 34-year veteran of the department served many different judges and commissioners. According to one engineer I talked to, he had the toughest engineering job in the county, perhaps even tougher than Poppe’s. But the silence from the media on his resignation speaks volumes.

The Engineering Department works hand in hand with the Flood Control District on many drainage projects, especially those that relate to roads, streets, highways and subdivisions. The Engineering Department is also home of the Infrastructure Resilience Team which works with the Community Flood Resilience Task Force.

Blount has agreed to stay until the Judge and Commissioners agree on a replacement…as long as that can be done before October 1.

Lake Conroe Association Pleads for Donations

With its legal challenge to the Seasonal Lake Lowering Plan being heard in MoCo District Court on August 24, the Lake Conroe Association has issued a plea for donations, saying that its legal battles “have fully consumed our lake protection reserve fund.”

For the full text of the letter, click here.

From April though July, the Lake Conroe Association filed approximately 2,800 pages of legal briefs in the case.

The case places much emphasis on drought.

Drought Monitor

The Texas Water Development Board posts a weekly drought monitor. Only problem for the Lake Conroe Association is, there isn’t any within a thousand miles. The pocket near El Paso was in drought, but they just had their wettest June/July in 127 years.

Source: Texas Water Development Board

Lake Level Report

As of Tuesday, 8/17/2021 at 11PM, Lake Conroe stood at 200.45 feet. That’s about a half foot below its conservation pool but still about a foot above the monthly mean level for August (199.6). That monthly mean goes back to 2000.

USGS data showing the average monthly levels of Lake Conroe for the 18 years before the seasonal lake lowering started. Note: the averages for August and September.

In other words, evaporation usually reduces the lake level in August as far as the SJRA has been with its seasonal lake lowering plan.

When I came across those figures, I realized that the seasonal lake lowering plan was just designed as insurance in case Mother Nature didn’t do her job in a particular year.

Shhhh. Don’t anyone tell the judge in the LCA lawsuit about Mother Nature’s “wasteful, ineffective, and deceitful program.”

Meanwhile, Lake Houston is slightly above its normal level.

Source: Coastal Water Authority via USGS.

Wayne Dolcefino Takes on MoCo

One of the world’s great investigative journalists, Wayne Dolcefino, has set his sights on Montgomery County now. A subdivision there named Carriage Hills is fighting another subdivision going in next to it. The new subdivision evidently started building streets before the plats were approved. It also failed to take its drainage to the river, so the drainage is spilling onto properties in Carriage Hills.

Photo taken May 26, 2021 of new development next to Carriage Hills on left. Looking South. Note substantial erosion already.
Also taken May 26, 2021 looking South. Note how drainage channel stops short of river. Carriage Hills is to left in heavily wooded area.

Neither the MoCo engineer, nor LJA, which does contract work for the MoCo engineer, seem overly excited about the oversight.

LJA is also reportedly working with TxDoT to build another bridge across the West Fork that will go through several Carriage Hills properties. This has the property owners upset because other routes were available that would not affect their properties.

See Dolcefino’s latest, the “Road to Ruin,” on YouTube.

Dolcefino Carriage Hills Video

TCEQ Best Management Practices for Sand Mines

TCEQ has proposed Best Management Practices for Sand Mines in the San Jacinto River Basin.

If you haven’t yet submitted your public comments, they’re due tomorrow. My last post on this subject includes links to a series of previous posts that describe gaps and areas for improvement.

If you want to help reduce future buildups of sediment in the San Jacinto, please consider sending your thoughts to Macayla.Coleman@Tceq.Texas.gov with the subject line “BMPs Guidance Document” before August 19, 2021.

Later today, I hope to post a summary of concerns that you could forward with one click.

Posted by Bob Rehak on 8/18/2021

1450 Days since Hurricane Harvey

The thoughts expressed in this post represent opinions on matters of public concern and safety. They are protected by the First Amendment of the US Constitution and the Anti-SLAPP Statute of the Great State of Texas.