Reminder: Buffalo Bayou Watershed Flood Bond Meeting July 30
Also Barker Reservoir Meeting on Aug. 1
July 23, 2018
The Harris County Flood Control District and members of county commissioners’ court continue to hold meetings around the county to present proposals for projects attempting to reduce the hazard of flooding.
The meeting about projects proposed in the Buffalo Bayou watershed will be held on Monday, July 30, from 6 to 8 p.m. at the Memorial Drive United Methodist Church, 12955 Memorial Drive in Houston. A meeting to present projects proposed for the Barker Reservoir watershed is scheduled for Wednesday, Aug. 1, from 6 to 8 p.m. at Memorial Parkway Junior High, 21203 Highland Knolls Drive in Katy. Buffalo Bayou flows from its headwaters near Katy into and through Barker Dam.
The projects are to be funded with the proceeds of a $2.5 billion bond issue should the voters approve on August 25. The bonds would be issued over a period of ten to fifteen years, according to the flood control district, and repaid through a property tax increase of no more than two-three cents per $100 of home valuation. Homeowners with an over-65 or disabled exemption and a home worth $200,000 or less would not pay any additional taxes, according to the district.
Most of the projects proposed are projects that had long been planned. For instance, a controversial project to remove forest and excavate basins to capture and temporarily hold overflow on the south bank of Buffalo Bayou in Terry Hershey Park is listed with a $10 million cost estimate. The project in its initial stages would allegedly create 60-100 acre-feet of temporary storage alongside the bayou. The linear detention, siphoning flow out of the bayou, is planned to compensate for eventual additional City of Houston drainage into the bayou from neighborhood streets.
Barker and Addicks dams both drain into Buffalo Bayou, and overflow from Cypress Creek on the rapidly developing Katy Prairie in northwest Harris County also drains into the overburdened Addicks Reservoir, adding to the pressure of runoff into Addicks and the bayou.
Other than the Hershey Park detention project, some $21 million is slated for a new detention basin north of John Paul’s Landing on Upper Langham Creek, which drains into Addicks.
However, most of the projects listed for these watersheds mainly focus on repairing channels and improving conveyance – making more stormwater flow faster into and through the reservoirs. This has the potential to cause more problems and more flooding. Modern practice elsewhere is to focus on slowing the flow, making room for the river with wider floodplains. We would hope for more money to be spent on land aquisition, buyouts in floodplains, preservation of undeveloped land, forest, wetlands, prairies, and riparian vegetaton; creation of green space, restoring meanders, and programs to encourage slowing of rain runoff beginning with individuals and neighborhoods.
There are also funds proposed to be used in collaboration with Army Corps of Engineers, which owns and operates Addicks and Barker, to evaluate the effectiveness and operation of those 70-year-old dams.
A complete list of projects can be found on the flood control district’s website. The website also offers a way to make comments about the projects.
The meetings are not set up for the public to engage officials or voice opinions. They are informative only – with numerous stations staffed by flood control personnel to explain projects. However, paper and pencils are provided for citizens to write comments.
A house damaged by Harvey floodwaters in a still-recovering neighborhood north of Buffalo Bayou in west Houston. Photo on June 12, 2018, by SC
Commissioner Radack Responds
“Buffalo Bayou Not a Natural River”
Supporting Costly Engineering to Slow the Flooding River. Spending Money to Stop the River Slowing For Free.
Nov. 30, 2016
Updated April 23, 2017 — The Harris County Flood Control District reports that repair costs through March 2017 are $1.25 million. Terry Hershey Park remains closed until construction work is complete.
Harris County Precinct Three Commissioner Steve Radack called to comment on our article criticizing unnecessarily costly and destructive “repairs” to the north bank of Buffalo Bayou in Terry Hershey Park. The six-mile long park is in Precinct Three in far west Houston and Commissioner Radack is the boss there.
Radack’s main point, apparently in support of needlessly spending an excessive amount of money, was that Buffalo Bayou is not a natural river. Because the bayou is not natural, it “does not naturally meander.”
Harris County Precinct Three Commissioner Steve Radack. Official photo courtesy of Steve Radack.
For background: the naturally meandering bayou in Terry Hershey Park was stripped and straightened in the 1940s and ‘50s. Last spring high waters from record rains and extended high flows from the federal dams immediately upstream ate away at the bank in places and damaged the asphalt hike-and-bike trail on the north side. We pointed out that this had occurred where the old meanders or bends were. The bayou, we said, was seeking out its historic meanders, adjusting to the flow.
Our point was that it would make more sense, in accordance with the most advanced river management practices across the country and around the world, to move the asphalt trail slightly away from the very edge of the water and allow the river room to move and restore itself. This would be far cheaper, prettier and more natural, and healthier for the bayou, the beneficial trees and plants and creatures that grow there, and for the water flowing through it to the bay. Doing that rather than hardening the bank in an artificial straight line is also less likely to cause flooding and erosion downstream and less likely to require expensive repairs all over again. It’s also federal policy.
But according to Radack, this doesn’t matter, because Buffalo Bayou is not natural. It’s not natural because the Corps of Engineers “controls the flow.” The bayou “only has water in it,” Radack explained patiently, if the Corps opens the floodgates. “The water comes from the reservoir system.”
Therefore, according to Radack, the bayou is “not natural.”
Is that all true? Beg pardon, but no.
But here’s a puzzle: Radack supports spending tens of millions in public funds to carve up the banks and engineer some two dozen in-channel detention basins on the bayou in Terry Hershey Park. (See below.) But he opposes allowing the bayou to carve out for free its own detention by widening and restoring its old bends. Instead he approves spending taxpayer funds to keep the bayou from doing that.
Does that make sense? Seems contradictory to us.
Tracking Wildlife on the Bayou
Boys Scouting Part III
September 20, 2016
Boy Scout Paul Hung rallied his troop for the third floating inventory of the banks of Buffalo Bayou on a recent Saturday morning. Hung is documenting the tracks of wildlife as an Eagle Scout service project, and his fellow scouts in Sam Houston Council Troop 55 are helping.
Hung and other scouts have so far found over 130 tracks of animals including raccoon, beaver, possum, coyote, grey fox, bobcat, great blue heron, egret, otter, nutria, wild boar, and others. The tracks are being plotted on a map, and the information will be published as a pamphlet with the help of Save Buffalo Bayou, which is the beneficiary of the project.
Anyone who wishes to donate to help Paul Hung publish his Buffalo Bayou wildlife pamphlet can do so here.
About a dozen Boy Scouts and adult observers gathered with their Boy Scout wooden canoes at the Memorial Park boat launch at Woodway Sept. 10. It was a steamy morning, and they planned to paddle past Memorial Park and the Hogg Bird Sanctuary all the way to Lost Lake in Buffalo Bayou Park. Hung handed out clipboards and gave instructions for identifying and photographing the tracks and recording their location using a compass app on a cell phone. Nearby was the wooden box, built and recently installed by Troop 55 Boy Scout Saswat Pati, containing reusable bags for picking up trash on the bayou.
Members of Boy Scout Troop 55 headed downstream from the Woodway boat launch in Memorial Park to inventory animal tracks on the banks of Buffalo Bayou. Photo Sept. 10, 2016
State of the Bayou
Downed Trees. New Channel. New Riprap. Washed Out Sidewalks, Beavers, and Turtles
But Some Banks Naturally Rebuilding
Does It Make Sense to Repair?
Sept. 1, 2016
Updated Sept. 11, 2016
You could not step twice into the same river. Heraclitus
We finally had a chance recently to float down beautiful Buffalo Bayou to see how things have changed. Our trip took us past Memorial Park in the middle of Houston. We also biked along the bayou through Terry Hershey Park far upstream in west Houston below the dams to see what was happening there.
The good news is that some of the high banks that had slumped in Memorial Park and the Hogg Bird Sanctuary during the Memorial Day 2015 flooding are naturally rebuilding.
The bad news is that the River Oaks Country Club has added more riprap to the south bank, hard armoring the bank with ugly, damaging concrete rubble, including where it should not be.
Nature’s Miraculous Way of Restoring. For Free.
Houston has had multiple record-breaking rains and flooding since the spring of 2015. When Buffalo Bayou overflows its high banks, as it did in the Memorial Day flood of 2015, the banks in places sometimes slump or slide away. This happens when the overflowing water seeps through the ground and saturates layers of sandy clay that liquefy, sometimes causing the bank to give way. Buffalo Bayou is 18,000 years old, and this has been happening for a very long time.
This natural tendency to slump is one reason why we think attempting to engineer these banks as proposed by the $6 million Memorial Park Demonstration Project won’t work. It’s also the reason why we think building and repeatedly repairing sidewalks at the bayou’s edge is wasteful and foolish.
The south-facing high bank of the Hogg Bird Sanctuary collapsed during the Memorial Day flood in 2015. Now self-restored. Photo on August 4, 2016.
Cool Off With Geology Classes On The Bayou
A Good Time for Floating with Tom Helm
August 13, 2016
You may think it’s way too hot to go outside. But it’s actually much cooler down on the bayou, thanks to the water and the shade from overhanging trees.
Also it’s free of mosquitoes since the damselflies eat them up. Nature works that way. Bats eat mosquitoes too. Mosquitoes don’t breed in flowing water anyway.
So now is the perfect time (unless it’s raining) to cool off and learn about the amazing geology of one of the last natural stretches of our 18,000-year-old Buffalo Bayou as it flows past Memorial Park.
Canoeing on Buffalo Bayou past Memorial Park. Photo Aug. 4, 2016, by Jim Olive.
Float for a couple of hours through this historic nature area with geologist, naturalist, and river guide Tom Helm. Tom will explain the ancient sandstone formations and high Pleistocene bluffs, the patterns in the sand, why the river changes course and how sediment taken away from one side gets deposited on the other. And much more. See mole cricket tracks and watch diving hawks! Witness the grace of a great blue heron flying in front of your canoe!
Right here in the middle of Houston.
Tom takes care of everything. Look under Classes at the top page of this website. Or contact Tom directly. Scheduling is flexible so arrange a time that suits you and your family and friends.
Get outside, have a good time, and learn something new! The water is low now so the sandstone formations and sandy banks are visible.
But if it’s raining or the flow is too high, classes will be postponed.
The Flood Czar Answers His Own Phone
But What Causes Urban Flooding?
July 12, 2016
Steve Costello explained for probably the hundredth time or more that he is not really the flood czar of Houston but the chief resilience officer.
The soft-spoken Costello, a civil engineer, former member of the Houston City Council (serving six years), former president and current board member of the Memorial Park Conservancy, and former candidate for mayor of Houston, was speaking at a meeting of the Briar Forest Super Neighborhood in west Houston a few weeks ago. Buffalo Bayou runs through the Briar Forest Super Neighborhood.
Appointed by Mayor Sylvester Turner in early May, Costello has been making the rounds, speaking at public meetings, attending others, such as the highly emotional town hall meeting with US Rep. John Culberson in June. Costello also has been giving interviews. Recently he flew off to Washington D.C. with the mayor and members of the Houston City Council to meet with officials of the Army Corps of Engineers about a multi-billion dollar plan to dredge and deepen Lake Houston in order to enlarge its capacity and alleviate flooding in northeast Harris County. Lake Houston is a major source of Houston’s drinking water.
But back in late June he was explaining to the Briar Forest crowd of about twenty-five neighborhood activists that while his sole mission was to do something about flooding, and his wife liked the idea of being a czarina, really he was the chief resilience officer. The concept, he explained, was a response to the Rockefeller Foundation’s 100 Resilient Cities project. Mayor Annise Parker had applied to the program for funding and support for a resilience officer, who would have focused not just on flooding but also on broader social issues like unemployment and transportation. Mayor Turner decided he wanted to focus on drainage and flooding, and the Rockefeller Foundation decided not to fund a position for Houston, said Costello.
No Staff and No Budget
As a result, Costello answers his own phone and emails himself. He has no staff. Apparently he has no funds or budget. (He also said in a later email exchange that he wasn’t sure where the funds for his salary were coming from and didn’t answer how much he was being paid.) Yet he has been bravely handing out his card, offering his cell phone number and email to myriad people in a city drowning in outrage and misery over increasing and repeated flooding, lost homes, cars, property, savings, and lives.
Harris County One of the Most Flooded Places in the Country
Over one-third of houses reporting flooding on Memorial Day 2015 were outside any known flood hazard area. Red dots are Memorial Day house counts. Blue areas are floodways and floodplains. Orange is coastal floodplain. Image from the Harris County Flood Control District report to the Spring 2016 conference of the Texas Association of Floodplain Managers.
Empty at Last. Almost.
Buffalo Bayou Reservoirs Finally Drain Last of Flood Waters
July 6, 2016
The last of the storm water from the April 18 Tax Day floods has passed finally through the gates of Addicks and Barker dams in western Harris County. (Almost, not quite. See comment below.) The reservoirs behind those 1940s-era earthen dams on Buffalo Bayou are normally empty in order to be ready to impound rainfall and runoff that would flood central Houston downstream.
The Army Corps of Engineers, which owns and operates the dams, was forced to release water through the dams at a high rate of flow – between 2,000 and 3,000 cubic feet per second (cfs) and more — for nearly three months in order to empty the record-high reservoirs, as frequent rains kept adding to the water level.
Base flow in Buffalo Bayou, as measured by the USGS gauge at Piney Point, is between 100 and 200 cfs. As of today the flow was still high – over 1,000 cfs.
The dams on Buffalo Bayou are classified “extremely high risk,” in large part due to the damage that would occur to the nation’s fourth most populous city if the dams were to fail. A $72 million construction project to repair seepage problems and build new conduits has been delayed due to the high water level in the reservoirs.
You can listen to what Richard Long, who manages the dams for the Corps, had to say about the situation this morning to Dave Fehling of Houston Public Matters. Long is the supervisory natural resources manager for the Corps’ Galveston District and has been working at the dams for 35 years.
And look for a report from us soon about the impact of the high waters on Buffalo Bayou. Richard Hyde, a geologist who lives in neighboring Bear Creek Village, reports that the herds of deer that roam the 25,000 acres of federally-owned wooded parkland in the reservoirs seem greatly reduced. And sadly, Buffy the Bison, rescued in April from the flooded small zoo in Bear Creek Park, died shortly thereafter.
Barker Dam and Reservoir around midday on Sunday, June 5, 2016, as the dam gates were releasing impounded stormwater into Buffalo Bayou. The 12,000-acre reservoir is located just west of Highway 6.
Can An Urban Stream Restore Itself?
Yes, With Room to Move. Free Rivers Are Healthier and Better for Flood Control
June 15, 2016
Updated with August 2016, April 29 and July 11, 2017, photos of self-repaired Hogg Bluff
By Susan Chadwick, Executive Director, Save Buffalo Bayou
This article is adapted from a presentation made at the Southwest Stream Restoration Conference in San Antonio, Texas, on June 2, 2016.
Save Buffalo Bayou is a non-profit organization founded two years ago to fight a public project described as a “restoration” project on one of the last natural stretches of Buffalo Bayou as it flows through the middle of Houston, past 1,500-acre Memorial Park and another 15-acre public nature preserve, the Hogg Bird Sanctuary. Since then our organization has expanded into broader, related issues. But today’s topic is restoration.
Here are some of the most common responses I would get when I would say that this mile-long plus stretch of the bayou is natural, along with what were some of the most common defenses of the project.
Sandy bank on a meander of Buffalo Bayou in Memorial Park. Photo by Jim Olive on April 2, 2016
The river’s not natural because the river changes.
It’s not natural because it’s been altered by high runoff from urbanization.
Trees fall into it.
It has terrible erosion problems. Look at those steep high banks!
It’s terribly eroded. Look at those sandy banks!
It’s eroding terribly. Sediment from the banks in Memorial Park washes up on the sidewalks of Buffalo Bayou Park we built downstream in the floodway right next to the river.
All that sediment carries bacteria. If we stop the banks from eroding so much sediment, we will reduce the bacteria. (Although sediment-laden Buffalo Bayou is less polluted than White Oak Bayou, which runs relatively clear and extremely foul due to being encased in concrete.)
And of course the big one: the river needs to be stabilized because it moves around.
Then there’s the argument, both implied and explicit, that prompted me to select this topic for presentation today: an urban stream cannot restore itself.
A Profound Misconception About How Nature and Rivers Work
All of those statements, of course, indicate a profound misconception about nature, about how a river works and how rivers benefit us.
A river is a living symbol of change. A living system. A dynamic process of nature that works for our benefit. Even the simple grains of sand work on our behalf to cleanse the water.
Radio Talk about Natural Flood Control
Flooding on the Air
June 14, 2016
Susan Chadwick, executive director of Save Buffalo Bayou, and John Jacob, board chair of Galveston Baykeeper, wetlands expert, and director of the Texas Coastal Watershed Program at Texas A&M, were on the radio today talking about bayous, streams, wetlands, floodplains, and natural solutions to flooding. The popular weekly Tuesday program, Eco-Ology, hosted by Pat Greer and H.C. Clark, aired from 3 to 4 p.m. on KPFT 90.1.
Among other things, we talked about proposals from the city and from the county and others to buyout property owners and widen and enlarge our bayous, creeks, and streams to handle increasing rains. This prospect might be alarming to those of us who recognize the importance of trees and vegetation along our waterways — for erosion control, cleansing our water, removing pollutants, slowing runoff, providing wildlife habitat, and many other life-sustaining functions, not to mention social benefits like we need nature to be sane.
But what if they didn’t bulldoze our waterways and widen them artificially? What if they removed the built structures and created parks and allowed room for our rivers and streams to move and adjust on their own by letting them flood into their natural floodplain?
This is in fact the latest thinking in flood control worldwide. Room for the river to move. Even in the Netherlands they are tearing down their big gates and dikes, letting the water in while raising the land where people live and work. Even in Missouri.
A lot cheaper, more cost effective, and more beneficial overall.
Listen to the Eco-Ology program on KPFT 90.1.
Flooding on Buffalo Bayou, April 18, 2016. Photo by Jim Olive.
Cottonwood Down
A Giant Falls
June 14, 2016
We have been watching this magnificent cottonwood on the south bank of Buffalo Bayou in Buffalo Bayou Park. Beginning in 2012 the Harris County Flood Control District realigned the banks and removed a lot of trees and stabilizing vegetation from the banks of the bayou between Sabine and Shepherd streets for its “natural stable channel design” improvements in the park.
Those “channel conveyance” alterations left many of the few remaining large trees on the weakened banks in a vulnerable state. In the Fall of 2015 part of this grand old tree broke apart.
And now, finally, sadly, the great tree has fallen. Others will go eventually.
Big trees fall into the bayou all the time. It’s part of the natural process, and fallen trees collect sediment for bank building, provide fish and wildlife habitat, and slow storm waters. But trees, whose massive roots help hold the bank together, are not supposed to fall in the water because in the name of progress we dug up and destroyed the structure of the surrounding banks, breaking up the intricate root systems of the vegetation that had been there for a very long time.
Still, we have had unusually high rainfall and stream flow in our bayous. The banks in many places are now lush with new green growth and wildflowers. For nearly two months we have had record high flows in Buffalo Bayou as the Army Corps of Engineers attempts to empty the flood control reservoirs behind Barker and Addicks dams in western Harris County. We have reports of trees downed all along the bayou.
Watch this slideshow of the great cottonwood as it maintained its lonely vigil until the end.
Cottonwood breaks apart and part of it falls as Buffalo Bayou Park is under construction. Photo December 21, 2014.
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