Saturday: Your Last Chance to Vote for the Flood Bond

There’s still one more chance to vote for the flood bond. This Saturday. At your regular polling place.

Low Turnout So Far

At the end of early voting, turnout for the flood bond was about 4% of registered voters. That’s dismal considering that virtually everyone in the county was affected by the Harvey flood. Less than one out of three people who lost vehicles in Harvey had come out to vote. Only 40 percent of who lost homes bothered to vote.

Here are all the rational reasons to vote for the flood bond. Among other things, you’ll be protecting your investment in your biggest investment. It will cost a lot less than flood insurance, and it will actually do something to reduce your flood risk.

And yet the turnout has been low. Perhaps “Fight Flooding,” the theme of the bond’s communication campaign, didn’t have much visceral impact. For those who forgot already what Harvey was like (if that’s possible), here are some alternative ads.

 

Vote and Get Your Friends and Neighbors to Vote

Please, everyone. Vote. You’ve spent a year cleaning up or helping your neighbors to clean up. Take a few minutes to vote. Walk around your block. Knock on doors and get neighbors to the polls. Only one thing is guaranteed, If this bond fails, our flood risk will remain high.

Posted August 25, 2018 by Bob Rehak

360 Days since Hurricane Harvey

 

Flooding and Floodplains in the Houston Area: Past, Present and Future

FEMA Flood Hazard Layer Viewer. Shows Humble-Kingwood-Atascocita-Corridor on West Fork of San Jacinto. Floodway (hatched), 100-year flood plain (aqua) and brown (500-year) flood plains are superimposed.

This Friday, from 7-9pm, Dr. William Dupre from the University of Houston Department of Earth and Atmospheric Sciences will conduct a  free Informational Workshop on flooding and flood plains sponsored by the Houston Geological Society. The event is free and open for the public.

Flooding in the Houston area over the last three years has caused residents and professionals alike to reconsider how we evaluate and respond to flood hazards in the region.
Dr. Dupre will discuss:
  • How watersheds and floodplains are defined and mapped
  • How individuals can obtain (and understand) information on local watersheds and floodplain maps
  • Recent floods, including how floods are measured and how flood frequency is calculated
  • How and why floods and floodplains in Houston have changed in the past, and are likely to change in the future
  • Possible approaches to reducing flood risk in the future.

FREE FLOODPLAIN WORKSHOP: INVITE YOUR FRIENDS AND NEIGHBORS!

Where:    Kingwood Community Center, 4102 Rustic Woods Dr, Kingwood, TX 77345

When:     Friday, August 24th, 7-9 PM

Speaker: Dr. William R. Dupre’, University of Houston, Dept. of Earth and Atmospheric Sciences

To reserve a seat: Please call the Houston Geological Society office (713) 463-9476 before 4 pm Thursday, August 23, or send your request to jajordan@hgs.org, and put “Kingwood Reservation” in the subject line.

 

Additional Information on Bond Proposal

The Harris County Flood Control District (HCFCD) Preliminary Draft of 2018 BOND PROPOSED PROJECTS is available at:the Harris County Flood Control District website.

The actual text of the Bond Proposal and Election can found at https://www.hcfcd.org/media/2855/bpl.pdf

This program is a community outreach effort by the Continuing Education Committee of the Houston Geological Society, the largest local geological society in the world.  The event is posted on their website.  Go to www.hgs.org; on the blue banner click on CALENDAR; on the Calendar page click on August 24.

Remember, the final day to vote for the flood bond is August 25, this Saturday, at your regular polling place. Please VOTE FOR it.

Posted by Bob Rehak on August 23, 2018

359 Days since Hurricane Harvey

Good News and Bad News about Early Voting for Flood Bond

Early voting for the Harris County Flood Bond ended Tuesday. Final voting is this Saturday, August 25th, the anniversary of Harvey.

First, the good news. Exit polling showed voters in the Lake Houston Area generally favored the bond. The other good news was that Kingwood had the highest number of voters anywhere in the county – 4133 or almost 8 percent of the total of early votes (excluding mail in votes).

County-wide, there were:

  • 52,604 early votes cast in person
  • 40,087 early votes by mail
  • 92,691 total early votes

The County Clerk does not provide a breakdown of early votes by area of the county. Breakdowns are only available for in-person voting.

Number of Lake Houston Area votes cast in person and as percent of in-person early votes:
  • Kingwood     4,133          7.9%
  • Atascocita        598          1.1%
  • Humble            980          1.9%
  • Crosby              406           .7%
  • Total                6,117       11.6%

Huffman had no early voting locations. Atascocita or Crosby would have been the closest voting locations for Huffman voters..

Now for the Bad News

For the most important election in recent memory, the turnout is miserable so far. Here are some statistics that put it in perspective.

  • Registered voters in Harris County as of 2016 = 2.235 million
  • % of voters (in person and by mail) who voted early for flood bond = 4.1%
  • Average % that early vote in non-presidential elections = 25%

We early voted at one sixth the normal turnout. But it gets even worse.

Let’s look at the number of early voters compared to the number who suffered flood damage. And let’s assume 1.5 voters per household since approximately half of all adults are married.

Lake Houston Area Structures:
  • Structures flooded in Humble, Atascocita, Huffman and Kingwood = 7,064.
  • Voters flooded in Lake Houston area = 10,596
  • Early in-person voters Lake Houston area = 5,711
  • Only about 54% of those who flooded in the Lake Houston Area bothered to vote so far.
County-Wide Structures:
  • Total structures flooded in Harris County = 154,170
  • Voters flooded in Harris County = 231,255
  • 225,000 voters flooded
  • 90,000 early voters
  • Only 40% of the people who flooded in the entire county bothered to vote so far.
Vehicles County-Wide:
  • Vehicles flooded in Harris County = 300,000
  • 90,000 early voters (in person and by mail)
  • Only 30% of all the people who lost vehicles bothered to vote so far.
FEMA claims County-Wide:
  • 47,000+ Flood Insurance Claims ($2.9B)
  • 15,800+ Small Business Loans ($1.2B)
  • 177,600 Individual Assistance approvals ($4.8B)
  • Total = 240,400 people damaged
  • 90,000 early voters
  • Only 37% of those filing FEMA claims bothered to vote so far.

I once read in a very good book…

I once read in a very good book somewhere that the creator helps those who help themselves.

This turnout is inexcusable.

Ten percent of the homes in the county flooded, but only 4% have bothered to vote so far!

Your Last Chance to Vote: This Saturday

Your last chance to vote is this Saturday, August 25th, at your regular polling place. To find your polling place, follow this link. Please vote. Get all your friends to vote. Get your relatives to vote. And drag your neighbors to the polls, too.

And please vote FOR the flood bond. Here’s a good list of all the reasons why you should.

Even if you didn’t flood, there are many reasons you should vote for the flood bond:

  • 68% of all those who flooded were outside of the 100-year flood plain. You could be next if we don’t improve drainage systems.
  • Many people are unwilling to fully rehab their homes because of fear of future flooding. Just one of those homes in your neighborhood can bring down home values for everyone.
  • Reductions in home values could result in increases in property tax rates as governments struggle to maintain a constant level of revenue.
  • Experience shows that homes near flood zones are less marketable.
  • Retailers will be less willing to invest in areas that have flooded before if they see no hope for future improvement.
  • PTFD

So please vote FOR the flood bond this Saturday. Mark your calendar now.

Post August 22, 2018 by Bob Rehak

358 Days since Hurricane Harvey

A River Ran Through It: Dr. Katherine Persson’s Harvey Experience

This is our war room,” said Dr. Katherine Persson, President of Lone Star College/Kingwood, without a hint of emotion in her voice. She speaks in clipped tones, not wasting a word or a second. That’s my first clue about the ordeal she and her management team have been through … and the miracle they managed to pull off after the West Fork of the San Jacinto River ran through two-thirds of the campus.

Dr. Katherine Persson, President of Lone Star College, Kingwood

During Hurricane Harvey, the college lost six of nine buildings to floodwater. The floodwater was contaminated with sewage forced up through floor drains when a nearby City of Houston wastewater treatment plant upstream also flooded. Decontamination took months. Restoration won’t finish until mid-January of 2019. Even before the floodwaters had fully receded, she and her team were busy developing a completely new business plan. They had to launch it in less than three weeks.

“Altogether,” Persson says, “Lone Star College District serves almost 90,000 students. We are the largest in the state and one of the largest in the country. The average size of a community college is 5,500.”

Persson oversees one sixth of the District. Her responsibilities extend from Humble to Tarkington (near Cleveland). She is responsible for:

  • 13,000 students
  • 150 full-time faculty
  • 400 part-time faculty
  • 400 full-time support staff

“We are a major economic engine in the community,” she says. “Despite the flood, we never closed down. We never laid anybody off. We made sure everybody got a paycheck.”

This is the story of how she and her team did it.

The Storm that Just Wouldn’t End

Persson’s story begins with a series of cascading delays. “On Friday, August 25th of 2017, we closed the college in anticipation of Hurricane Harvey. By Sunday, it became apparent that the storm was headed toward Houston, so we delayed the opening of school from the 28th to the 30th. But by Monday, the 28th, we determined that that wouldn’t work either, so we announced that classes would start on September 5th.

Harvey flooded 6 of 9 buildings at Lone Star College/Kingwood and cost an estimated total of $60 million.

“On Monday night, we were a shelter and a staging place for Centerpoint. We had 20 people already staying in the gym. I got a call from Dave Martin, our city councilmember. He asked if we could become a Red Cross Shelter because Kingwood High School was flooding. I said, ‘yes,’ of course. We were a shelter for all of three or four hours. At 10:30 Monday night, we had to close down.”

Persson continued, “At 2:30 the next morning, our facilities director called and said we had water in at least five of our buildings. That was Tuesday, the 29th. Unless you had a boat, nobody could get here until the 30th. Once the roads cleared out we could see that we had massive damage to six buildings because of the SJRA release.”

“I Tried Not to Get Emotional”

“Our deans started gathering that Wednesday, August 30, at homes that weren’t flooded, trying to figure out what we would do. We drafted a preliminary plan that had us coming back by converting 16-week classes to 12-week classes  with extensive reliance on online courses. We did the first campus assessment at 4 pm that day. I wasn’t devastated emotionally at that point, I was just impressed with the power of water and what it can do.”

Classroom building at Lone Star College/Kingwood flooded during Harvey after the release of water from the Lake Conroe Dam by the San Jacinto River Authority.

“The depressing part was coming back Thursday and Friday. Everything kept smelling worse and worse. By Saturday, our facilities director got hold of a landscape crew that started cleaning the campus from one end to the other. When 250 Blackmon Mooring remediation workers started showing up, that became Good Day #1.”

“When I thanked the Lafayette volunteer group that was bringing 250 hot meals to campus for the workers, I think I freaked them out. They thought I was from the health department when I showed up in a white suit.”

“I work with miracle workers.”

By Tuesday, September 5th, classes started at all Lone Star colleges except Kingwood. Kingwood started on Monday, September 25th.

Rehak: “How did you manage that?”

Persson: “I work with miracle workers. All deans started working together in one upstairs room of the East Montgomery County Improvement District. The first thing we had to figure out was how to hold classes when we had just lost 113 classrooms. We postponed the opening again from September 5 to 25. Student services contacted everyone to tell them their schedules were going to change.”

“We told them, ‘You may have to move to a new location or go online, but just stick with us. We’ll try to make things work for you.’”

Most of the contents in six buildings had to be replaced at a cost of $19 million.

Enrollment Increases After Flood

“We actually gained students. But I think that’s because the devastation was so great in other parts of Houston. Many students couldn’t start school right away; they needed a couple extra weeks to get their lives in order. Our delay worked to their advantage and ours.”

Cataloging the Damage

“All of central receiving flooded, plus all of the trucks and everything we do to maintain the grounds. We temporarily redistributed janitorial and maintenance staff to our other colleges to keep them productive and avoid layoffs. We had no power on the campus for two weeks after Harvey; it wasn’t even safe to be in the buildings without personal protective equipment.”

“We lost six classroom buildings. The lower level of the health center was totally destroyed. So was the main central plant with our boilers, generators, and communication system. All those things that you need to fully function were flooded and contaminated. Our library was totaled and had to be gutted; water came up halfway on the monitors. You could even see the effects of current in the building.”

“Our field house was totally under water; we had tennis balls stuck in the rafters. And I’m not sure why the nature walk is still there. It had to be under 20 feet of water,” said Persson.

Tennis and soccer balls stuck in the rafters of the field house show just how high the flood got during Harvey.

First Steps on the Long Road Back

“Our first meeting was in the Presbyterian church. It was important for folks to come together to make sure that everybody was ok and to hear about our preliminary plan.”

“I told the deans to do anything they could to help the students as long as it wasn’t illegal, immoral or unethical. And they did.”

“Basically, to get classes going, we took every nook and cranny to accommodate whole departments. Our big conference center was carved up into six rooms. We made classrooms out of the women’s center. Where the students used to shoot pool, that became the geology lab.”

Makeshift classroom after Hurricane Harvey at Lone Star College/Kingwood

The Search for Classroom Space

“We also found alternative spaces throughout the community. Some classes moved to our Atascocita Center. Biology, Chemistry and Art moved to LSC/North Harris. Nursing moved to Red Oak. Occupational therapy moved to Kindred Rehab. English for speakers of other languages moved to First Presbyterian. Cosmetology moved to Farouk, Inc. And we even borrowed some space from Harris County Fire Academy.”

“The most expensive program we have is dental hygiene. It’s one of the few programs in the entire Gulf Coast area, therefore it was difficult to find alternative space for that. We wound up leasing space off of FM1314 and front-loaded all the lectures in the fall until we could build out the space for dental hygiene.”

“We still have five buildings that are not fully open. We have partial use of the Library upstairs, so we have three and a half buildings out of nine at the moment.”

“We have been delayed by interior brick walls. There was mold behind them. Everything had to be dried out and kept at over 90 degrees for 3 months after it was cleaned and disinfected.”

Massive Temporary Shift to Online Learning

Rehak: “Tell me about the shift to online education.”

Persson: “We were 23% online before Harvey. After Harvey, it jumped to 62% online. It almost tripled. Face-to-face went from 70% to 21%. And hybrid education went from 7% to 16%.”

Rehak: “Did you have to certify faculty to train online that never trained online before?”

Persson: “Yes. We had a mere three weeks to certify them. We developed an emergency certification course and doubled the number of teachers we had who were certified to teach online from 41% to 82%. Now it’s even higher – 95%.”

“None of the full-time faculty complained; they still had jobs. But we lost two or three part-time faculty; they didn’t want to learn how to teach online.”

“We also had to train some students to learn online with a mobile unit. We tutored upstairs in the conference center and at Atascocita. We really had to scramble.”

Success Rate Takes Slight Dip

“Our success rate went from 72% to 67%. That’s not bad considering the huge shift to online where the success rate is never as good.”

Rehak: “How do you define “success”?

Persson: “Success is making a grade of C or better in a class.”

Accommodating Veterans and International Students

Rehak: “Were there any other adaptations you had to make?”

Persson: “Oh yes! We didn’t know before all this that veterans could only take one online class per semester, so we had to get special permission, or they had to go elsewhere to get more face-to-face learning time.”

“Also, since 9/11, Homeland Security has to approve all sites for international students. Some of the alternatives, such as Atascocita, were not formally approved sites. So we lost some of our international and veteran students to other colleges.”

Still Under (Re)Construction

Rehak: “Where do you plan to take it from here?

Persson: “We will be fully functional and looking all new by January of 2019. On the plus side, we have had an opportunity to update things that haven’t been updated since 1984.

“Our new process technology building opened in January 2018 and our new health care teaching facility will open in fall of 2020.”

Lone Star College Kingwood is BACK!

“All of the deans are next door sharing a conference room. They could not have done what they did in such a short order if they weren’t all in the same room working together. They said that they didn’t want to go back into their silos. So in our build-back, we’re building a collaborative work center that 30 people will office out of,” said Persson.

Flood Cost $60 Million

Rehak: “How much did all of this cost?”

Persson: “We were the worst stage of contamination: Category 3 – or “black water” – meaning we had sewage in buildings. Clean-up was $11 million. Replacing contents will cost $19 million. And build-back will bring the total to an estimated $60 million.”

Rehak: “What is the most dramatic story to come out of this?”

Persson: “There was no loss of life. Not one student that we know of who planned to come here lost his or her life.”

“Harvey was a game changer; it reset expectations. There was none of the petty stuff you always get from students or employees. That totally disappeared. You have to keep a sense of humor through all this, even if it’s black humor.”

Posted by Bob Rehak on August 22, 2018

357 Days since Hurricane Harvey

Dredging Update: First Dredge Being Assembled, Miles of Pipe Being Welded

The U.S. Army Corps of Engineers’ Command Site for its San Jacinto West Fork Emergency Dredging Project is a beehive of construction activity. I spent two hours at the site this morning at the invitation of the Corps. Now I can see why the prep is taking as long as it is. I had no idea so much was involved. Last week, I posted pictures of dozens of trucks arriving with equipment and pipe. This week they are assembling the first dredge of two and welding miles of dredge pipe…even as more arrives every hour.

First of Two Dredges Nearing Completion

Because of their size, two dredges are being delivered to the site in pieces and assembled there. Great Lakes Dredge and Dock, the contractor, brought in a 300-ton crane last week to lift the biggest pieces to the water’s edge. At the moment, two smaller 70-ton cranes are completing the work – lifting pumps, motors, stabilizers and other equipment into place.

Two seventy-ton cranes lift the remaining pieces of the first dredge into place at the command post south of the river.

Worker installing safety rails.

Same dredge showing where the dredge pipe will hook in.

Massive fittings weigh thousands of pounds

More dredge pipe arrives as the first dredge nears completion.

One of the impellers that will force dredged material into the dredge pipe. These are bigger than the pallet they sit on and are made from solid steel. They are actually considered a disposable item in the dredging process because they wear out. They are  the rotor located inside the case of a pump. it increases or decreases the pressure and flow rate of a fluid. 

Miles of Dredge Pipe Being Welded and Weighted

As workers assemble the first dredge near the water’s edge, other workers weld miles of dredge pipe together from 40-foot sections in a separate staging area. Each section weighs about 4,000 pounds. And each string is 1,000 feet long – about a fifth of a mile. These longer sections will then be put together with booster pumps to pipe spoils directly from the river to placement areas.

Acres of 24-inch HDPE pipe have arrived at the job site and are being stored in a massive pipe farm. Walls of the pipe are one inch thick. Each 40-foot section weighs about 4000 pounds.

Already five larger 1000-foot sections have been assembled. That’s nearly a mile of dredge pipe.

Welding machine shaves off the end of each pipe so the joints will be clean and even.

Next the welding machine heats up the ends of each pipe to 450 degrees and fuses them into one continuous piece.

This is what a completed weld looks like. It’s as strong as the pipe itself.

Next the pipe will be weighted with these steel collars to make sure it remains submerged during dredging operations. This is important because one pump might stop temporarily during dredging while other pumps continue to pull water through. The now partially filled pipe could become buoyant and a hazard to navigation.

To attach the collars, first, two halves are chained together then sledge-hammered into place.

Then the halves are welded together to form a permanent bond. This process is repeated over and over hundreds of times until each 40-foot section has its own collar/weight. The black screen is a safety device to protect the eyes of people nearby who may not have welding goggles. The flame from welding can be as intense as looking directly into the sun. 

Safety Warning

Do not attempt to visit this site. Stay away for your own safety. Huge construction equipment is moving about the site. Operators have limited visibility and they’re focused on balancing their loads, not looking out for unauthorized visitors.

Actual dredging should start in about ten days. When it does, it won’t be safe to be in a boat between the US59 and the West Lake Houston Park Bridges.

The pipe you see above will be submerged and marked with these buoys.

Safety buoys mean submerged dredge pipe is in the area. Stay away for your own safety. Do not attempt to boat, water ski, fish, or swim in the vicinity of dredging operations. Pipe can move swiftly and without warning. 

Dredging operations will continue 24/7 until completion. There is no safe time of day or day of the week to be in this section of the river.

Pipe will extend from wherever the current dredging is to one of two placement areas. One is south of Kingwood College and the other is between the river and Townsend east of US59.

Posted on August 20, 2018 by Bob Rehak

356 Days since Hurricane Harvey

Sand Mining Best Management Practices: Louisiana vs. Texas

When it comes to communicating “best management practices” (BMPs) for sand mines, Louisiana sets the gold standard. The Louisiana Department of Environmental Quality (LDEQ) and the Concrete & Aggregate Association of Louisiana, Inc. worked together to  develop BMPs. Their goals: to reduce the amount of sediment and turbidity in streams and rivers that result from sand and gravel mining and to improve water quality. 

This guide represents a realistic and open approach, which I appreciated. It’s also concise, candid and clearly written. For those who don’t have time to read the entire 41-page document, a  summary follows, especially of the parts that talk about sedimentation. I’ve inserted several images from the East and West Forks of the San Jacinto to contrast practices in Texas and Louisiana.

Importance of Sand and Gravel to Economy

The Introduction discusses the importance of aggregate (sand and gravel) to the Louisiana economy. Sand and gravel are essential resources for construction. In fact, they represent Louisiana’s second most valuable non-fuel natural resource.

Almost half (48%) of all the aggregate produces concrete. The second largest use (22%) is as a base material for highways, railways, runways, etc. 

Types of Mining

The document then discusses different techniques of mining: dry (by excavation) and wet (by dredging). Louisiana focuses primarily on wet, which is the type of mines we have along the San Jacinto with a few exceptions.

Importance of Storm Water Management

Page 4 contains a discussion of “Non-point Source Storm Water Management.” Non-point essentially means from rain, runoff and flooding. It occurs across an entire area as opposed to a specific point, such as a leaky fuel tank. Some key quotes:

“Sand and gravel mining operations can potentially cause off-site impacts to water quality if site planning and BMPs (Best Management Practices) are not factored into every aspect of the mining operation.”

“Sand and gravel mining operations disturb land and soil…”

“Good site planning and operation can reduce the likelihood of sediments moving off of the opera­tion…”

“The purpose of the BMP Manual is to provide informa­tion on the types of BMPs that should be utilized during every phase of the mining operation in order to prevent pollutants from leaving the mining operation.”

Dangers of Not Following BMPs

Page 5 discusses the dangers if miners do not follow best management practices.

“Siltation is considered the highest nonpoint source priority of concern in wetland areas and the second highest priority affecting lakes (1992 Report to Congress). Mining related activities have been estimated to cause 7 percent of the nation’s nonpoint source impacts to lakes and 17 percent to coastal waters. Sediments from mining operations could consist primarily of biologically inert materials which could potentially adversely affect the water body’s designated uses. Inert suspended sediments have the follow­ing detrimental impacts to the aquatic habitat:

  • Sediments smother lower forms of aquatic life in the bottom of a stream. This can destroy the aquatic life in a stream because it kills the food supply. If sedimentation continues with a high concentration of suspended solids, the stream will fail to recover. Sediment deposition may also cover fish eggs and break the life cycle; thereby, destroying the fishery uses of the stream;
  • A continued cloudy condition of a stream will deter its use for almost all recreational purposes;
  • Directly or indirectly, it can change the characteristics of a stream channel and in many instances can limit boat usage and cause additional flooding hazards;
  • In rivers that are utilized for drinking waters, silt creates an additional expense upon the water treatment and purification process for both domestic and industrial users; and
  • It decreases photosynthetic action and thereby reduces the capacity of a stream to assimilate organic matter.”

Recommendations for Soil Conservation

Page 11 marks the start of the discussion about specific BMPs. The first BMP addresses soil conservation. “Sediment loads discharged to streams must be minimized, if not eliminated altogether,” they say. “There are basically two types of controls: vegetative and structural.”

Streambank BMP Recommendations

Regarding the Streambank Best Management Practice (BMP), they say: “When native vegetation is used to maintain streambanks, there are many benefits provided to the public and environment. Near the waters’ edge, herbaceous and wetland plants help filter pollutants from the water and prevent bank erosion during high flow periods. These plants also provide habitat for fish and natural predators of mosquitoes as well as increasing aesthetical appeal. Spatial balance between native trees and shrubs on the streambank provides stability and shading. Shading from trees lowers water temperature and improves water quality by conserving the oxygen in the water.”

Note the images below. The first represents the ideal and was pulled from the Louisiana BMP guide. The others are from sand mines on the West Fork of the San Jacinto and Caney Creek in Texas.

Image of ideal stream bank from Louisiana Sand Mining Best Practices Guide.

West Fork sand mine that has been been repeatedly inundated. Note dikes which have been breached and repaired.

Another portion of the same mine that has been repeatedly inundated. Note width of dike, steepness of slopes, and lack of vegetation to retard erosion. This area is no longer actively being mined.

West Fork sand mines on 8/30/17, one day after the peak of the Hurricane Harvey flood. Note how flood water breached dikes and flowed through mines on both sides of the river. Photo courtesy of Google Earth.

Reducing Erosion through Vegetation

“Vegetation is an inexpensive and effective way to protect soil from erosion,” Louisiana says. “It also decreases erosion from flowing water by reducing its velocity. Roots hold soil and increase infiltration. Topsoil should be added where existing soils are not suitable for adequate vegetative growth.”

Vegetative controls include:

  • Maintaining buffer zones between mine and river
  • Sod stabilization techniques
  • When installed and maintained properly, sodding can be more than 99 percent effective in reducing erosion.
  • Protection of trees involves preserving and protecting selected trees that exist on the site prior to development.
  • Tillage, with lime and fertilizer, to maintain adequate soil pH and nutrient content.
  • Temporary seeding
  • Permanent seeding
  • Erosion & Sediment Control Blankets
  • Surface Roughening – Creating horizontal grooves across the slope to reduce runoff velocity/erosion and aid the growth of seed. 

 Structural Ways to Reduce Erosion

Structural controls include:

  • Diversion ridges, berms or channels of stabilized soil
  • Silt fences
  • Straw bale barriers
  • Sediment basins with banks sloped at 2:1 or less
  • Dikes – Must be well compacted and vegetated, with an outlet pipe or coarse aggregate spillway 
  • Riprap protection – at the outlet end of culverts or channels to reduce the depth, velocity and energy of water so that the flow will not erode the receiving stream.
  • Check dams – Small dams less than 2 feet high constructed across swales or drainage ditches to reduce flow velocity and erosion.
  • Aggregate stabilized site entrances – at least 50 feet long to reduce sediment tracked onto public roads. Tire washing may also be needed.
  • Good housekeeping practices for fuel, debris, sediment from unstabilized areas, etc.
  • Post-construction stormwater management measures
  • Retention ponds
  • Vegetated swales and natural depressions that filter sediments from runoff with side slopes of 4:1 or less.

Best Management Practices for Land Clearing

Regarding land clearing, Louisiana recommends:

  • Disturbed areas should be temporarily stabilized or covered as soon as possible to minimize impacts on the environment.
  • Only clear acreage needed for immediate use. Clearing or grubbing too much land too early in the construction phase of the mining operation will dramatically increase the potential for environmental impacts from surface water runoff and will increase the costs to control runoff. 
  • Allow enough undisturbed buffer at property boundaries to provides sufficient lateral support of property lines. 
  • A minimum 100-foot buffer zone is required adjacent to perennial streams and water bodies in the State of Louisiana.

In a mine on Caney Creek,this 64-acre area was cleared a year and a half before Harvey, but was not mined. The lack of vegetation made it more susceptible to erosion during the flood. Photo taken 9/14/17, two weeks after Harvey.

Site Reclamation Goals and Best Management Practices

Pages 28-31 describe best practices for site reclamation. Goals include:

  • Stabilization of inactive mining pit or borrow areas with herbaceous perennial plants
  • Stabilizing the soil
  • Preventing wind or water erosion from causing on-site or off-site damage
  • Improving the aesthetic appeal
  • Ability of the site to support wildlife

Best management practices include:

  • Revegetation, mulching
  • Grading slopes 3:1 to facilitate seeding
  • Constructing diversions at tops of slopes to divert runoff away from the slope banks to a stable outlet 
  • Constructing aggregate lined chutes or equivalent to conduct concentrated flow of water to stable outlets 
  • Reclamation of abandoned roads by reshaping, recontouring, and resurfacing with topsoil and seeding for vegetative growth
  • Removal of structures 
  • Removal of sand stockpiles
  • Removal of debris
  • Grading property to minimize potential impact to waterways

Abandoned sand mine in Humble, TX. No fencing. No grading. No vegetation on slopes. Note proximity to buildings on adjoining property and road. 

Concrete crushing operation once part of sand mine in Humble, TX. 

Education Better Than Damage Control

In the conclusion on Page 32, Louisiana states:

“One of the best ways to mitigate environmental impacts from the sand and gravel industry in Louisiana is to establish a set of volun­tary best management practices for the industry to adhere. This can be accomplished by initiating good management practices, educating our operators, and taking a more proactive stance in minimizing the problems of the past that have hurt this industry’s image. We, as industry leaders, need to be actively engaged in addressing issues and taking precautions and preemptive measures. Damage control after the fact is destructive. The world is changing and we must be adaptive to these changes – good management practices in an environmentally friendly manner are synonymous with good business practice.”

I’m sure Louisiana has problems just like Texas. But I sure do like the tone of this and what they are trying to accomplish. If Texas has a similar initiative, I can’t find it.

Posted 8/19/18 by Bob Rehak

355 days since Hurricane Harvey

Ironies That Harvey Revealed

During the 353 days since Hurricane Harvey, I’ve observed many ironies. Below are my favorites.

Irony #1

We need multi-million dollar studies to figure out stuff a five-year old in a bathtub knows – for instance, to let the water out, you open the drain.

One study suggested that adding more gates to the Lake Houston Dam could let water out faster. Another will tell us that putting sand in the drain causes water to back up. Yet another will tell us to take sand out of the drain.

Irony #2

The state allows sand mining in floodways so that we can have cheap concrete. That encourages upstream development, which causes more downstream flooding, which raises costs to government, which raises taxes on everyone.

Quick. Somebody call an accountant. We need a study on that.

Sometimes it feels that this is the standard Flood-Mitigation Decision Matrix. For a downloadable PDF of this graphic click here

Irony #3

Disaster mitigation is a disaster.

Let me give you a parallel that illustrates the complexity of the process that we have engineered. Imagine that  someone is breaking into your house. You call the police, but the 911 operator tells you to hang tight while the governor and president declare an emergency; Congress appropriates funds; Emergency Management devises a response plan; FEMA reviews your claim; three other agencies hire consultants who conduct an area-wide threat survey; TDEM prioritizes your needs; the Army Corps of Engineers studies bids; and the City works out an inter-local agreement with the County to raise matching funds, so that HUD can provide the money to buy out your house … when you’re dead and buried. Who would tolerate an emergency-response system that responds that way? 325 million Americans. That’s who.

Irony #4

The storm that brought us together is now dividing us.

During Harvey, there was an outpouring of human kindness that inspired the world. A year later, people who didn’t flood want to forget what happened and get back to their normal lives. People who did flood can’t.

Irony #5

The state’s “Rainy Day Fund” was never really for rain.

Even though Austin may soon loosen the purse strings on some of that money, the real intent seems to have been to save enough money to make the state’s balance sheet look better to Wall Street.

Irony #6

Our mothers taught us that an ounce of prevention is worth a pound of cure. We ignored that advice.

Decades ago, engineers urged us to dredge the San Jacinto to avoid flooding. We didn’t. Billions of dollars in damages later, Mama looks pretty smart. Ain’t no one smarter than Mama!

Irony #7

No one budgets for disasters in an area prone to natural disasters.

When a disaster strikes, everyone goes looking for matching funds. That delays flood mitigation measures, sometimes to the point where we lose our sense of urgency and spend the money on candy instead. What was that Mama said?

Irony #8

We’ll spend hundreds of millions of dollars to clean up a mess that could have been reduced with the stroke of a pen.

Had we only passed some common-sense legislation that prohibited sand mining in floodways!

Irony #9

Cooperation during a disaster turns into cutthroat competition after the disaster.

Fifty counties flooded in Harvey. Now, every county and city along the Gulf Coast is chasing the same matching funds.

Irony #10

Our disaster mitigation process requires groups to fill out an application to fill out an application.

It’s true. The city had to file an application with TDEM to file a FEMA application to fund additional flood gates on Lake Houston.

Irony #11

Some pretend that storms like Harvey are a statistical aberration when experience tells us they are not.

There often seems to be a conspiracy of willful blindness between developers, politicians and home buyers until the next big storm hits. Then developers call it a 100,000-year storm. Home owners look for buyouts. And politicians talk about creating green spaces from land that should have been green space all along. Since 1994 (24 years ago), we’ve had five so-called five-hundred year storms – 1994, Allison, Tax Day, Memorial Day, and Harvey. Who says grown-ups can’t live in a make-believe world?

Posted on August 17, 2018, by Bob Rehak

353 Days since Hurricane Harvey

Section 404 of the Clean Water Act and Sand Mines

Section 404 of the U.S. Clean Water Act states that, “Any discharge of dredged or fill material … where the flow or circulation of navigable waters may be impaired or the reach of such waters be reduced, shall be required to have a permit under this section.”

Hmmmm. Impaired flow? Does that sound like what happened to the San Jacinto as a result of sand deposited downstream of mines during Harvey?

Penalties for Violation Under 404

The law also states that, “Any person who violates any condition or limitation in a permit … shall he subject to a civil penalty not to exceed $10,000 per day of such violation.”

Findings of U.S. Army Corps of Engineers

The executive summary of the U.S. Army Corps of Engineers Value Engineering Study for its West Fork San Jacinto River Emergency Dredging Project states that, “On 25 August 2017, Hurricane Harvey made landfall along the Texas Coast as a Category 4 storm. Hurricane Harvey created extensive flooding along the West Fork of the San Jacinto River creating a record high flood of 69.22 feet as recorded by the West Fork San Jacinto River gauge on August 29, 2017. This record flooding increased the amount of deposition of sand and silt within the West Fork of the San Jacinto River from areas further upstream.” Below are two examples.

A giant sandbar almost completely blocks the west fork of the San Jacinto River just downstream from River Grove Park.

Yet another giant sand dune has formed at the mouth of the west fork of the San Jacinto. It is not being addressed by the Army Corps dredging project but should be. Thousands of homes upstream from the blockage flooded during Harvey.

Decreasing Amount of Water that Can Pass Through to Lake Houston

The executive summary continues, “This has now reduced the overall depth of the West Fork waterway and decreased the amount of water that can pass through and into Lake Houston. The epic flooding caused by Hurricane Harvey caused 4,139 structures along the West Fork to flood, including 1,621 homes with National Flood Insurance Program (NFIP) claims totaling over $407 million. In addition, during Hurricane Harvey a number of hospitals along the West Fork (e.g. Kingwood Medical Center, Memorial Hermann Northeast Hospital) were cut-off due to the West Fork flooding which prevented residents from obtaining emergency aid.”

The summary concludes, “Recent heavy rainfall along the West Fork has caused, and may again result in, downstream water levels that present a threat to persons and properties in the Kingwood-Humble-Lake Houston areas due to the inability of the West Fork to carry sufficient water volume. … In the event of another heavy rainfall event there is a near certain likelihood that wide-spread flooding will occur impacting even more homes than before due to the river’s inability to pass heavy volumes of water.”

Cost of Cleanup to Taxpayers

The Corps is currently spending almost $70 million on dredging to restore the carrying capacity of the river in a 2.1 mile section of the West Fork (out of an 8 mile stretch between U.S. Highway 59 and Lake Houston). The cost for cleaning up the rest of the river has yet to be determined. The initial project will not even address the biggest blockage on the river – a sand bar at the mouth of the West Fork that forces water to flow approximately 40 feet uphill before it reaches the main body of the lake.

 Need for Stricter Regulations on Sand Mining

One of the possibilities that the Corps examined to reduce such costs to taxpayers in the future was imposing stricter regulations on sand mining operations using 404 permitting. Although the Corps found this outside of the scope of their project, they address the possibility in section C-9 of their report on page 31.

The exact text reads:

“This comment refers to sand mining operations upstream of the US 59 highway bridge that are within the floodplain. During flood events where the boundaries of the sand pits are overrun, the river carries sediment from these pits downstream.

This is potentially a 404 issue/violation and it may be possible to get the mine operators to incorporate some abatement features to minimize the amount of sediment from their operations they discharge into the river.” [Emphasis Added]

This comment could apply equally to sand mining operations on the East Fork, but the East Fork was not within the scope of the Corps’ study.

Clearly, not all the sand above came from mines, but satellite imagery shows that much of it did.

It seems to me that sand mining operations located in the floodway which flood repeatedly would be eager to incorporate “abatement features,” such as the best management practices found in other states and countries. This just might show good faith effort to reduce pollution, mitigate liability under the Clean Water Act, and avoid a revocation of operating permits.

As always, these are my opinions on a matter of public policy protected under the first Amendment of the U.S. Constitution and the Anti-SLAPP statute of the great state of Texas.

Posted by Bob Rehak on 8/16/2018

352 Days since Hurricane Harvey

Conditions in Atlantic Becoming More Favorable for Tropical Development

I just received an email from Jeff Lindner, Director of Hydrologic Operations Division/Meteorologist for Harris County Flood Control District about a potential tropical development.

Linder says, “There has been little mention of the Atlantic tropics thus far this hurricane season…even though we are already on our “E” storm. Most of the storms have been focused in the sub-tropical north Atlantic away from the generally hostile conditions in the deep tropics and far removed from any land interaction.”

National Hurricane Center Five Day Graphical Tropical Weather Outlook gives this tropical disturbance a 20% chance of tropical formation over the next five days.

Conditions in Tropics Becoming More Favorable for Tropical Development

“However conditions are starting to slowly change and as is usual for mid-August, conditions are becoming more favorable for tropical development in the deep tropics or that region between Africa and the Caribbean Sea,” said Lindner.

Tropical Wave 99L

Lindner continued: “A tropical wave roughly 850 miles east of the southern Windward Islands has shown an increase in deep convection today. This convection (thunderstorms) remains fairly disorganized at this time. Significant amounts of Saharan Air (dusty air from the deserts of N Africa) have been generally keeping the formation of convection to a minimum for the last 2 months, but 99L has found itself far to the south (near 8N) and mainly south of the dusty air across the mid Atlantic. This system has also found itself near/under a building ridge of high pressure aloft and removed from the anomalous strong wind shear thus far this year across the Caribbean Sea and Atlantic.”

“Conditions appear at least marginally favorable for some slow development of this feature as it moves W to WNW over the next 48-72 hours.”

“There is little to no model support for this feature to develop, but we shall see what the 00Z and 12Z models suggest. At the 800pm this evening, the Hurricane Center is giving this system a 20% chance of tropical development over the next 5 days as it moves generally toward the eastern Caribbean Sea.”

Lindner Cautions Against Looking Too Far into Future

“Reminder: it is important as we move into the heart of hurricane season to get information from trusted sources – especially on social media. Posts showing where a storm could be 7-9 days from now and at some level of intensity should not be believed and it is important to refrain from sharing such posts without proper context,” cautioned Lindner.

Peak of Hurricane Season is September 10

The statistical peak of hurricane season for this area is September 10, so we are still almost a month away. Nevertheless, be prepared. Check your your hurricane kit now. Don’t leave important matters for the last minute.

SJRA Still Lowering Lake Conroe

The San Jacinto River Authority (SJRA) has been steadily lowering Lake Conroe by 275 cubic feet per second to create extra capacity in the lake.  From a normal level of 201 mean feet above sea level (MSL), the goal was to reduce the lake to 199 MSL by August 15 and maintain that level until the end of September. This is to create an additional buffer against downstream flooding until the Army Corps can restore the carrying capacity of the West Fork.

However, recent rains have been refilling the lake almost as fast as the SJRA is lowering it. At the time of this post, the level was at 200.01 MSL. Visit SJRA.net to see the current level and release rate.

I am sure they will increase the discharge rate if this or any other storm approaches to get to their target of 199 MSL.

In short, nothing to worry about now. But keep your antenna up.

Posted by Bob Rehak on August 15, 2018

351 Days since Hurricane Harvey.

Activity at Army Corps Dredge Command Site Kicking into High Gear

The countdown to D-Day (dredging day) continues. Preparation for the U.S. Army Corps of Engineers Emergency Dredging Project on the West Fork is kicking into high gear. Here are some pics from the job site and the latest schedule for when various activities will start.

Schedule for U.S. Army Corps of Engineers West Fork Emergency Dredging Project

Dozens of trucks are delivering equipment to the mobilization site.

Traffic management at the site is a major concern, prompting the Corp to request the public stay a safe distance away.

Thousands of sections of dredge pipe have been delivered to a massive “pipe farm.”

Two Poseidan dredges are being delivered in sections and will be assembled on site. Shown here: some platforms being unloaded. Here’s a link to the Poseidon site that shows how the equipment is set up.

Contractor and Army Corps representatives review dredging plans at mobilization site headquarters.

Actual dredging should begin within the next two weeks. While staff and material are being organized for the dredging operation, clean up crews will remove more dead trees and other debris from the river and placement sites.

Example of debris removal from Lake Houston before dredging. This shot actually shows a city-contracted crew working on the East Fork during July. Corps crews will be conducting similar work.

Difference Between City Dredging and Corp Dredging

(NOTE: THIS POST HAS BEEN UPDATED WITH THE FOLLOWING INFO SINCE THE ORIGINAL POST) What is the difference between the city debris removal and the debris removal that the corps is doing? I went back into the contract requirements. Division 2, Section 02 41 01.01 45 stipulates, “General debris consists of trees and other vegetation within limits of dredging in the river, under the West Lake, Houston Parkway bridge, and upland areas that are to be dredged or excavated. General debris may also include, but is not limited to, metal bands, pallets, pieces of broken cable, rope, concrete rubble, construction materials, broken piles, etc. and may be encountered in the same area as above.”

So I see three main differences. The Corps subcontractor will: 1) only be working within the area to be dredged, 2) remove other types of materials that the city did not, 3) Also be responsible for cleaning up the placement areas, which the city did not.

Section 1.3.2 of the same document stipulates how they are being paid. Basically, it’s by the ton, but they are also being compensated for the cost of equipment, labor and material. The government is inspecting the scales. The complete contract requirements and plans are posted on the Reports page of this web site under Sedimentation/Dredging/Army Corps.

Additional Info About Army Corps West Fork Dredging Project

Below are some videos posted by the Corps that explain how we got to this point and how the project will progress.

The first explains how the Corps conducted the site survey.

https://www.youtube.com/watch?v=xvQNwKOOmeA

The next shows an aerial tour of the project.

https://www.youtube.com/watch?v=Cu4-cwsdFNc

And the final one explains their value engineering process.

https://www.youtube.com/watch?v=2se5YdNRGdA

Posted by Bob Rehak on August 14, 2018

350 Days after Hurricane Harvey