In August 2016, Liberty County released a Strategic Plan. Officials intended it to be the official policy guide for the county’s growth. However, most of the growth experienced by the county since then contrasts sharply with the vision, strategies and goals outlined in the plan. The contrast is so great, it’s tragicomic.
Colony Ridge V. Liberty County Goals
The massive 12-13,000 acre Colony Ridge development has provided most of the county’s growth since the plan’s inception. The development was not even mentioned in the plan but is now larger than the largest cities in the county (Liberty, Cleveland and Dayton).
Below are quotes from the Strategic Plan paired with pictures from Colony Ridge. You be the judge. Is Liberty County delivering on its mission, vision and values? Or mortgaging its future?
Vision Statement
“Liberty County supports a high quality of life by nurturing a family-friendly, resilient, and equitable community, and welcomes sustainable growth while conserving natural assets” – County Vision Statement
High-Level Goals
Development Goals include “Developing in a safe and resilient way that will last for generations to come.”Environmental Goals include promotion of ecotourism, expansion of parks, and wetland preservation.Housing Goals include improving the quality of housing.Transportation Goals include expanding connectivity throughout the county. “The mobility of both people and goods is vital to the region’s success and its citizens’ quality of life.” Shown above: FM1010, washed out since Harvey, has traffic backed up for hours during morning and evening commutes.
Drainage/Water Concerns
Planners are concerned about “fast growth that will change the nature of the community, and place more pressure on existing services and storm water infrastructure.”
Building and Development Guidelines
“Strengthening building codes is an effective way to lessen damage from disasters...For example, there would have been 40% less damage in Hurricane Andrew had building codes been enforced.”“Encourage an intense tree canopy as a tool for reducing energy consumption and thermal pollution while also increasing value.”“Establish development regulations to reduce hazard exposure within the County.”“We envision a county abundant in natural, environmental, and wildlife resources that are protected and carefully managed to ensure the integrity of the ecosystem as the county grows.”
Promote an Overall Increase In Quality of Life
“…ensure that there is equitable access to resilient, high-quality housing to promote an overall increase in the quality of life.”
Such plans are always aspirational. They provide both direction and guideposts to measure success. People always make concessions to reality along the way.
However, what strikes me about thisparticular plan is that Liberty County gleefully accepted the first growth that fell into its lap. Judging by the pictures and statements above, and Wayne Dolcefino’s interviews, county officials were too busy licking their lips to say, “Hey now!”
They apparently made no attempt to influence the developer to follow even the most basic tenets of their plan.
From the Liberty County Strategic Plan.
It’s almost as if Colony Ridge exists in a parallel universe. I wonder how the structures above will hold up in a tornado, Toto?
An immutable law of biology states that “If you’re not growing, you’re going.” But I hope people down at the county courthouse remember that not all growth is good.
Posted by Bob Rehak on 12/14/2020
1203 Days since Hurricane Harvey and 452 since Imelda
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.
https://i0.wp.com/reduceflooding.com/wp-content/uploads/2020/12/20201207-Aerial-Dec-2020_734.jpg?fit=1200%2C800&ssl=18001200adminadmin2020-12-14 09:00:262020-12-14 09:00:31Liberty County Strategic Plan … Dead On Arrival
Wayne Dolcefino, one of the country’s great investigative journalists, has been digging into Colony Ridge, as I have. So when he asked me last week if his videographer could hitch a ride on my helicopter, I said “sure.”
New Dolcefino Video Covers More Dimensions of Flooding Problem
While I shot hundreds of stills over Colony Ridge, his videographer shot 90 minutes of video. Dolcefino edited it together with other footage. His 8-minute video includes:
The most recent Liberty County Commissioner’s meeting
Attempted interviews with Trey Harris, the Colony Ridge developer
Some mind-boggling political donations made by Harris
An interview with a Harris County flood official
Articles from ReduceFlooding.com, including my recent Colony Ridge post, Rivers of Mud.
Wayne Dolcefino begs Liberty County Judge Jay Knight and commissioners to watch video of drainage violations at Colony Ridge before voting on new plats for the developer. They approved the plats without watching his video.
While I have focused primarily on the physical issues involved in flooding, Dolcefino has also focused on political issues. He literally digs deeper into the problem.
From Colony Ridge to the Liberty County Courthouse
The background for Dolcefino’s latest video is a Liberty County Commissioner’s Court meeting in which he attempted to show Commissioners video of drainage violations in Colony Ridge before they voted on additional plats for the developer.
Commissioners approved the plats after refusing to watch the video. Then, incredibly, one said he didn’t see any proof of violations.
And that – in one brief soundbite – explains why flooding is such a difficult problem to solve.
Colony Ridge violates Liberty County drainage standards because ditches have no backslope interceptor swales to reduce erosion.Most also lack grass.
I highly recommend Dolcefino’s video if you want to understand – in your gut – how politics can affect local flooding.
Out-Scrooging Scrooge
You may also find Trey Harris’ refusal to answer questions about deplorable living conditions in Colony Ridge, coupled with interest rates up to 13% on land purchases, quite interesting. It only took 177 years for someone to out-Scrooge Ebenezer Scrooge, the protagonist from Charles Dicken’s A Christmas Carol. But, in my opinion, the Colony Ridge developer now sets the standard.
Posted by Bob Rehak on 12/13/2020 based on reporting by Wayne Dolcefino
1202 Days since Hurricane Harveyand 451 since Imelda
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.
https://i0.wp.com/reduceflooding.com/wp-content/uploads/2020/12/20201213-Screen-Shot-2020-12-13-at-5.14.33-PM.jpg?fit=1200%2C680&ssl=16801200adminadmin2020-12-13 18:08:472020-12-13 18:22:09Rivers of Mud, Part Dos: Wayne Dolcefino Uncovers More Liberty County Dirt
Two new developments in Montgomery County, Audubon in Magnolia and Country Colony in Porter, will have no detention ponds. The two developments total almost 3,400 acres. During heavy rainfalls, they will dump their floodwater directly into local streams.
The commissioners expressed concern in their 2019 meeting about placing economic hardships on developers. Residents complained about the economic hardships caused by flooding. The developers won.
Theory and Problems with Flood Routing Studies
The idea behind flood routing is simple. If you can show you can get your floodwater to the river faster than a flood’s peak arrives, theoretically, you’re not adding to the peak. Therefore, theoretically, you’re not making flooding worse.
However, engineers and hydrologists point out several flaws with this “beat the peak” theory.
Flood-routing studies don’t consider the cumulative effects of other developments.
They are almost always based on outdated hydrologic models.
They assume “ideal” storm conditions.
“If you start with a brand new hydrologic model,” said one county engineer, “the modeling a developer does could theoretically be accurate. But his/her runoff changes the model. That runoff rarely gets incorporated into the model that the next developer uses.”
And, of course, if everybody rushes floodwater to a river during a flood, that’s the exact opposite of what you want. Holding water back in detention and retention ponds is the best way to reduce flooding.
The two new developments in MoCo exploit this routing-study loophole to avoid the cost of building detention ponds.
Audubon in Magnolia
The first, called Audubon Magnolia will contain 5,000 homes at buildout. It occupies 3,300 acres that drain into Mill Creek, Spring Creek and then the West Fork San Jacinto.
From Audubon’s drainage impact analysis. Note school being placed at edge of floodplain…before new floodplain maps are redrawn based on Atlas-14.
Section 3.1 of the Impact Analysis includes a description of the flood routing study and concludes, “Therefore, the increased flows are able to exit into Mill Creek before the flow from the bulk of the upper drainage basin arrives at the mouth of the stream.”
Correspondence with Montgomery County officials at the front of the document shows their concerns: use of pre-Atlas 14 data; impact on wetlands; building in floodplain; roughness co-efficients used to model speed of water over various terrains; and impact on water surface elevations.
Clearly, the floodplain administrator had major concerns about use of pre-Atlas 14 rainfall data. However, the developer was grandfathered based on the date of the original permit application.
Montgomery County’s new Atlas 14 standards increased the total for a 24-hour, hundred-year rain by 4 inches. The Flood Plain administrator encouraged the developer to model the higher rainfall totals and build to higher elevations. Why? To ensure the likelihood of compliance for those homes in the future.
These documents, dated 2019, are the latest available from Montgomery County. The county engineer’s office indicated that no detention ponds are being planned by the developer or demanded by the County.
Country Colony in Porter
The second development, Country Colony, lies just north of the Harris County/Montgomery County line at the end of West Lake Houston Parkway. Country Colony occupies approximately 80 acres immediately west of the Triple PG sand mine.
Note county line at southern edge of development. Also note how some of the lots are actually in the floodplain of White Oak Creek.Country Colony. Taken December 7, 2020, looking east toward Triple PG Sand Mine in background.
No detention ponds here either! A big heads up to the people downstream in Walden Woods, Woodstream Forest and beyond.
Posted by Bob Rehak on 12/12/2020
1201 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.
https://i0.wp.com/reduceflooding.com/wp-content/uploads/2020/12/20201207-Aerial-Dec-2020_446.jpg?fit=1200%2C800&ssl=18001200adminadmin2020-12-12 20:51:402020-12-12 20:53:04Two New MoCo Developments Will Total Almost 3,400 Acres, Have No Detention Ponds
Two daredevil sand mining companies, Triple PG Sand Development, LLC and Texas Concrete, have stepped up their efforts to mine sand between pipelines that carry natural gas and highly volatile liquids.
AG Lawsuit Filed in 2019
In October of last year, the Texas Attorney General sued the Triple PG mine in Porter for up to $1 million on behalf of the Texas Commission on Environmental Quality (TCEQ). The original petition in the case cited repeated breaches in the mine’s dikes over a period of several years that let process water and sediment from the mine escape into the headwaters of Lake Houston. Lake Houston supplies drinking water for approximately two million people.
Days after the AG filed the suit, the mine’s owner, Dr. Prabhakar R. Guniganti, a cardiologist from Nacogdoches, tried to shuffle ownership of the mine through a series of trusts controlled by his family. In June of this year, the AG filed an amended petition, naming all the trusts and their officers (both individually and as directors) as additional defendants.
Both the TCEQ and AG’s office have declined to comment on ongoing legal matters relating to the Triple PG operation. However, while flying over the mine on Monday this week, I saw something very disturbing.
Mining Between Pipeline Corridors
Kinder Morgan has an easement for a natural gas pipeline through the mine. You can see the pipeline path on the left in the photo below. Their pipeline was exposed during Harvey by erosion and had to be buried deeper. Luckily, no explosions or fires resulted.
Looking NW. Mining between pipelines at the Triple PG mine in Porter.Natural gas line on left; HVL lines in utility corridor at top of frame.
Now, Triple PG and Texas Concrete are mining sand from between the pipelines. This will increase the potential for erosion in future storms. That could expose pipelines and potentially lead to pipeline ruptures, spills, and/or explosions.
Looking west. Removing additional ground cover makes the pipelines on either side more susceptible to erosion and exposure during floods.Looking south. Notice on right how mine has run heavy equipment across both pipeline corridors, a dangerous practice according to pipeline engineers.
To adapt a phrase about pilots from the aviation industry, “There are old miners and bold miners.” Those daredevils at Triple PG sure are Bold. With a capital B. As in Boom.
Posted by Bob Rehak on 12/11/2020
1200 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.
https://i0.wp.com/reduceflooding.com/wp-content/uploads/2020/12/20201207-Aerial-Dec-2020_552.jpg?fit=1200%2C800&ssl=18001200adminadmin2020-12-11 18:29:482020-12-11 18:35:41Daredevils at Triple PG Mine Continue to Push Safety Envelope
But aerial photos taken this week show that drainage ditches in the massive Colony Ridge development rarely have grass on their banks. And while criss-crossing the development in a helicopter on Monday, December 7, 2020, I did not see one backslope interceptor swale. This, DESPITE Colony Ridge being the largest development in Liberty County. Or maybe it’s BECAUSE Colony Ridge is the largest development in the county. Perhaps they think they can flaunt regulations.
Colony Ridge is even larger than any of the cities in Liberty County – by far. You would think that would make violations more visible. But apparently, it makes them less so. Much to the detriment of downstream communities.
What Ditches Should Look Like If Regulations Were Followed
Regs in Liberty County are similar to those in Harris County. Here’s a photo of a drainage ditch in Harris. It shows both grass and interceptor swales in use and how they help prevent erosion. Note the swales behind the shoulders of the ditch. Also notice the concrete structures that help pipe rainwater from the swales to the bottom of the ditch. They prevent water from washing down the ditch slopes and causing erosion. Had the developer followed the regs, which represent best practices, his ditches should look like the one below.
Backslope interceptor swales with drain pipes leading to bottom of ditch help prevent erosion. Photographed in Humble in Harris County.
Erosion Control as Practiced in Colony Ridge/Liberty County
Now, compare that to the following 18 photos. I took all of them over Colony Ridge on Monday. Some show newly developing areas subject to the latest regulations adopted in 2019. Others show areas already developed under regulations from 2004. The older regs required grass, but no interceptor swales. The newer regs require both. No attempt has been made to bring the older ditches up to newer standards despite obvious erosion problems.
Note how the developer has a habit of piling dirt next to the ditches. The TCEQ cited the developer for that practice earlier this year because dirt could wash back into ditches during rains. However, the developer obviously doesn’t fear the TCEQ. He’s still doing it. On a grand scale.
Ditch on right has grass on banks but no backslope interceptor swales.Note dirt piled on banks and how it’s already eroding into ditch. No grass. No swales. Piles of dirton the ditch’s shoulders.Again. No grass. No swales. More dirt on shoulders.Some weeds, but no grass. No swales. And a river of mud.Another river of mud.Rio de Lodo. “Lodo” translates to mud, sludge or mire in English.This ditch has more corrugations than a cardboard factory thanks to the total absence of erosion-control measures.Ditch in new area without erosion control measures near Highway 99 extension (in upper left of frame). Note eroded sediment already moving down the ditch.See close-up detail below.Regulations say that grass should be planted on ditch shoulders immediately after ditch construction.Detail from upper right of previous photo.Note erosion in ditch in foreground and other ditch T-ing into it.Pipe from resident’s home enters ditch at top, accelerating erosion. Enlargement shows brownish liquid dripping from pipe.Even newer stick-built homes on left don’t get erosion protection.Note a wheelbarrow next to the man. Perhaps he’s trying to excavate blockages in the ditchbehind his house.Note how erosion has taken dirt from under fences.Better keep the dog on a leash!The mud in ditches has made them playgrounds for ATVs, further contributing to erosion.The mother of all eroding ditches in Colony Ridge.(BTW, note the absence of fire hydrants on the long street left of ditch.)Baby ditch with another river of mud.Erosion has created a training ground for mountain goats in Colony Ridge.
Externalizing Development Costs
All this erosion (from approximately 12-13,000 acres) eventually winds up in the East Fork of the San Jacinto and Lake Houston. There, taxpayers must pay to have it dredged and filtered out of the water supply.
Meanwhile, the developers cheaping it out are counting their change all the way to the bank.
Posted by Bob Rehak on 12/10/2020
1199 Days since Hurricane Harvey and 448 since Imelda
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.
https://i0.wp.com/reduceflooding.com/wp-content/uploads/2020/12/20201207-Aerial-Dec-2020_1103.jpg?fit=1200%2C800&ssl=18001200adminadmin2020-12-10 14:12:222020-12-11 13:16:11Rivers of Mud: Largest Development in Liberty County Openly Flaunts Drainage Regulations
The two parties will co-own, co-develop and co-maintain the rest of the property to be used for stormwater detention and parks.
The parties will split the cost of the remaining property 50:50 which will be jointly owned, developed, operated and maintained.
For its portion of the remaining cost, the City will donate property worth approximately $5,150,000 to HCFCD that the County can then use for flood control projects in areas of the City that flood.
The City will also, at a minimum, match Harris County’s detention and fill mitigation requirements.
The City will adopt and enforce NOAA’s new higher Atlas-14 Precipitation Frequency standards within the City and in the City’s extra-territorial jurisdiction.
The City agreed to require a minimum detention rate of 0.55 acre-feet per acre.
All this must happen within 120 days.
If the sale falls through, nothing in the terms of the agreement obligates the seller to perform additional flood mitigation.
County Must Now Approve on December 15
Harris County Commissioners Court must still approve the Interlocal Agreement in its December 15 meeting before it becomes effective.
Nothing in the terms of the sale or interlocal agreement mentions the hundreds of lawsuits that arose out of that flooding. They should not be affected.
Pace of Development To Depend on Speed of Funding
The Parties (City and County) agreed to jointly fund the cost of designing and constructing flood mitigation facilities on the Land and to work cooperatively to secure funding. They targeted completion of the project within five years.
Both Parties agree the Land can stay in its current condition until funds are jointly secured to build the project, which may be built in phases based upon available funding.
Any Project on the Land will involve gravity detention. In other words, no pumps will be involved. Perry Homes has already constructed approximately 60% of the required detention.
Stormwater Detention To Be Based on Current Needs
The amount of the Stormwater Detention allotted to each Party will be based on its pro rata share of costs contributed to the Project. The Parties agree that the Stormwater Detention shall only be used for mitigation of existing flood risks, and not to mitigate the flooding risks of any new developments that arise after the execution of this Agreement.
Martin Thanks Turner for Being Mayor for “All the People”
Mayor Pro Tem Dave Martin sponsored the ordinance that council approved this morning and worked to align support. Mayor Turner supported the agreement despite the fact that the majority of Kingwood voted for his opponent in the last mayoral election. In his presentation, Martin specifically commented on that and thanked the Mayor. He said that Turner promised after the election that he wanted to be mayor for all the people. Martin said this was proof that he was good to his word.
Posted by Bob Rehak on 12/9/2020
1198 Days since Hurricane Harvey and 447 since Imelda
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.
https://i0.wp.com/reduceflooding.com/wp-content/uploads/2020/12/20201207-Aerial-Dec-2020_424.jpg?fit=1200%2C556&ssl=15561200adminadmin2020-12-09 12:16:172020-12-09 23:01:43Houston City Council Unanimously Approves Motion to Purchase Woodridge Village from Perry Homes
268 acres currently owned by Perry Homes could be turned into a regional floodwater detention basin if the purchase is approved by Houston City Council tomorrow and Harris County Commissioners Court on December 15.
If successful, the City and HCFCD would work together to reduce the volume of water flowing out of the headwaters of Taylor Gully.
Require a minimum detention rate of 0.55 acre-feet per acre of detention for any new development on tracts one acre or larger in size
Prohibit the use of hydrographic timing (flood-routing studies) as a substitute for any detention requirements, unless the project emptied directly into Galveston Bay.
Enforce these provisions both within the City and its extraterritorial jurisdiction.
The volume of detention ponds currently on Woodridge Village is about 40% short of what the new higher Atlas-14 requirements dictate. The current detention was approved and construction started before Atlas 14 became effective in Montgomery County.
If Council approves the money and ILA tomorrow for the Woodridge Village purchase, Harris County Commissioners would take up the issue at their next meeting on December 15. Approval by both bodies certainly would make Christmas much merrier and more hopeful for hundreds of Kingwood families devastated by flooding last year.
Kudos to Mayor Pro Tem Dave Martin for pushing this forward.
The outcome of the votes could affect projects considered in the Kingwood Area Drainage Analysis. If the purchase goes through, it could reduce or eliminate the need for widening and deepening Taylor Gully itself. It is not immediately clear whether the City and County have set deadlines for the design and construction of the detention basin.
Posted by Bob Rehak on 12/8/2020
1197 Days since Hurricane Harvey and 446 since Imelda
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.
https://i0.wp.com/reduceflooding.com/wp-content/uploads/2020/12/20201207-Aerial-Dec-2020_425.jpg?fit=1200%2C800&ssl=18001200adminadmin2020-12-08 22:13:572020-12-08 22:43:54Woodridge Village Purchase on Wednesday’s Houston City Council Agenda
In my lifetime, I’ve taken more than half a million pictures. I spent four years photographing in Chicago’s Uptown neighborhood, which was the poorest neighborhood in that city at the time. I’ve also photographed in Appalachia and the poorest parts of Central America. But in the heartbreak department, nothing compares to a photo I took this afternoon while flying over Colony Ridge in Liberty County. The developer there has reportedly foreclosed on 1900 properties so far this year.
Colony Ridge home, December 7, 2020.
Plastic Sheeting for a Roof in 40 Degree Weather
The photo in question: a mobile home with plastic sheeting for a roof. Duct tape held down the sheeting. The temperature last night fell into the low forties. It’s hard to believe that this is probably someone’s dream home. But everything is relative. And I have no idea where the owner came from. This could be a step up.
Capturing this photo took 1/8,000th of a second. But I’ve stared at it for hours since downloading it. I can’t take my eye off the crib and the children’s toys strewn around it. Nor the breakfast table with a cup of coffee and a half eaten meal.
It’s hard to believe that people live in conditions like this. To be fair, most homes in Colony Ridge don’t approach this level of poverty. But it’s not unusual for the development.
A Reminder at Christmas
I hope this image serves as a reminder this Christmas that despite our wealth, tremendous need exists in our midst. Please support the charity of your choice this year if you can.
Posted by Bob Rehak on 12/7/2020
1196 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.
https://i0.wp.com/reduceflooding.com/wp-content/uploads/2020/12/20201207-Aerial-Dec-2020_1210.jpg?fit=1200%2C813&ssl=18131200adminadmin2020-12-07 20:00:512020-12-08 08:03:13Merry Christmas from Colony Ridge
Drainage ditches in Colony Ridge appear to violate Liberty County drainage standards from both 2004 and 2019.
Both 2004 and 2019 regulations require developers to plant the slopes of ditches with grass to control erosion.
In addition, 2019 regulations require backslope interceptor swales, another erosion-control measure. These prevent stormwater from running down the sides of ditches.
According to residents, the developer has made little effort to do either or to bring older ditches up to current standards.
The violations contribute to sedimentation of the East Fork San Jacinto and its tributaries, and flooding from Lake Houston to Plum Grove.
Soil-Stabilization Violations
2004 Liberty County Road and Drainage Standards for Subdivisions and Development stipulate in Section 3.72 on Page 28 that, “All channels, and adjacent area, which has been disturbed by construction equipment shall be seeded with Bermuda grass or other grass as approved by the Precinct Commissioner or Designated Agent at the rate of eight pounds per acre (8 lb/ac). Seeding shall conform to Item 164 Seeding for Erosion Control of the “TxDOT Standards”.
Note erosion on sides of ditches. Colony Ridge 6/16/2020
2019 regulations also mandate additional erosion-control measures. The section on Erosion Control on page 100 states: “All drainage facilities must be designed and maintained in a manner which minimizes the potential for damage due to erosion. No bare earthen slopes will be allowed. Various slope treatments, including turf establishment, concrete slope paving, and rip-rap, are accepted. Flow velocities should be kept below permissible values for each type of slope treatment. Interceptor structures and backslope swale systems are required to prevent sheet flows from eroding the side slopes of open channels and detention facilities.” [Emphasis added.]
The emphasis on “All” and “maintained” would seem to require developers to bring all ditches up to the 2019 standard, but that clearly has not happened.
Colony Ridge 6/16/2020. Note severe erosion, lack of grass on slopes and absence of backslope interceptor swales.
What Backslope Swales Look Like
Liberty County regulations don’t provide schematics of backslope interceptor swales, but Harris County Flood Control regulations do. See below. At the top of the ditch embankment, a notch is cut into the horizontal area. This notch collects rain and channels it to a series of corrugated metal or HDPE drains that empty into the bottom of the channel. This prevents water from pouring over the banks of the channel and eroding them.
As you look at the pictures below, see if you can spot the:
Backslope swales (notches)?
Drain pipes?
Grass-lined banks?
You can’t. They aren’t there.
Colony Ridge 6/26/2020. Note severe erosion on banks. This ditch was built in 2015.Colony Ridge 6/26/2020Colony Ridge ditch draining into Maple Branch. 4/25/2019.Colony Ridge 6/14/2020 in newly developing area.
But construction technique does not seem to be the problem in Colony Ridge. They simply have not been built. That’s why erosion on the sides of the channels is so rampant.
Consequences of Erosion
All this eroded sediment has to go somewhere. And it did.
Between Kingwood and Huffman, the East Fork Mouth Bar downstream from Colony Ridge grew 4000 feet during Harvey and Imelda. Average water depth through this area decreased from 18 feet to 3 feet.
Colony Ridge isn’t 100% responsible for ALL this sedimentation. Natural erosion and sand mines also contributed. But substandard drainage practices in a 12-13,000 acre development had to play a large role.
The City of Houston is still dredging the West Fork Mouth Bar, more than three years after Harvey. Cost to taxpayers to date: more than $100 million. No one yet knows how much it will cost to remove the East Fork Mouth Bar.
Backslope interceptor swale on Taylor Gully in Harris County.12/4/2020Taylor Gully in Harris County 9/7/2020.
Posted by Bob Rehak on 12/5/2020
1194 Days since Hurricane Harvey and 453 since Imelda
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.
https://i0.wp.com/reduceflooding.com/wp-content/uploads/2020/12/20200616-RJR_4085.jpg?fit=1200%2C800&ssl=18001200adminadmin2020-12-05 20:47:342020-12-06 10:08:27Colony Ridge Ditches Violate Liberty County Drainage Standards
Twelve years ago, Hurricane Ike leveled the Bolivar Peninsula as it roared into Galveston Bay. Had Ike come onshore 10-20 miles west, Houston would be a very different place today. Most of Houston’s industrial might would have been on the dirty side of the storm instead of the dry side. Refineries, tank farms, and ships could have been destroyed with their chemicals poisoning the Bay. Ever since then, people and think tanks have advanced ideas to avoid such a possibility.
Park Would Protect Populated Areas in Larger Storms
While the Corps’ plan would reportedly protect the west side of Galveston Bay in a Category 1 or light Category 2 storm, critics worry that it wouldn’t be enough for a Cat 3, 4, or 5 storm. That’s where the Galveston Bay Park Plan comes in. It would form a natural barrier that helps protect industrial facilities from League City to Deer Park from storm surge driven into and across the Bay.
Recreational and Wildlife Potential
The Galveston Bay Park Plan would also create recreational opportunities for people within the Bay, while creating additional natural habitat for the area’s abundant birds, fish and shellfish.
Architects of Plan
The Severe Storm Prediction Education & Evacuation from Disaster (SPPEED) Center at Rice University conceived the plan and Rogers Partners of New York and Houston designed it.
Materials for Construction
The Park would be constructed by widening the Houston Ship Channel from its currently proposed 700 feet to 900 feet. The excavated clay will help build a 25-foot levee along the ship channel from Houston Point in Chambers County to the Texas City hurricane levee in Galveston County.
Additionally, with the disposal of the dredged material, the Galveston Bay Park Plan will create usable park space within Galveston Bay which will also include constructed wetlands as well as other bird habitats.
Award Winning Plan and Video
The GBPP was recently chosen as one of the top designs in the Houston 2020 Visions Competition. This competition sought creative ideas focused on making Houston more resilient.
According to Houston City Council Member David W. Robinson, FAIA, “This video is a must-watch for those concerned about the future of our region and the critical need for ongoing disaster preparedness. Hurricane storm surge is the sleeping giant of flood issues. This project is vitally necessary for our success in the 21st Century and will be a valuable asset for the region for many generations to come.”
Intro by Marvin Odum, former president of Shell Oil and Chief Harvey Recovery Officer for City of Houston
Recap of Ike that sets the stage for the plan
Description of the plan
The plan itself is almost too audacious to describe. You need to see it. Part 3 starts at 6:32 in and runs to 10:55.
The video was produced by filmmaker Jeffrey Mills of Io Communications of Houston. Barbara Mills provided animation and other special effects.
Posted by Bob Rehak on 12/4/2020
1194 Days since Hurricane Harvey and 12 years since Ike
https://i0.wp.com/reduceflooding.com/wp-content/uploads/2020/12/Galveston-Bay-Park-Plan.jpg?fit=1200%2C669&ssl=16691200adminadmin2020-12-04 17:56:512020-12-04 17:59:42New Video Shows How Flood Protection Plan Would Transform Galveston Bay
