Recent Photos of Buffalo Bayou: Slowing the Flow

Summer Down on the Bayou

July 17, 2018

In case you missed Jim Olive‘s summer shot of that Bend in the River, here is the latest addition to our series of photographs taken from the same high bank on the north side of Buffalo Bayou in Memorial Park. The view has changed over the course of four years. In particular, since the high waters of Harvey, the bayou widened to accommodate the massive flow. Banks slid or slumped away, as they will do on the bayou when water rises over the banks and onto the natural floodplains. Trees and vegetation slide down too.

Ideally this woody debris, often still living, should be left in place to collect sediment, reinforce the banks, and facilitate regrowth and rebuilding of the banks. It’s a cycle that has been continuing on rivers for millions of years. Unfortunately, the Harris County Flood Control District hired contractors and paid them by the pound to collect as much of the fallen vegetation as possible.

Summer sunrise on Buffalo Bayou. That bend in the bayou on July 1, 2018, with flow at about 280 cubic feet per second. Photo by Jim Olive, of course.

 

Other Recent Photos of Buffalo Bayou

Known as Houston’s Mother Bayou, in large part because most other bayous and streams flow into it, Buffalo Bayou is some 18,000 years old, more or less, and one of the few natural waterways in the city that remains largely unchannelized. The beauty of it flowing past Memorial Park is that this forested stretch is one of the last accessible to the public. It’s a historic nature area, ever changing and adapting, filled with ancient high banks and sandstone, beaver, otter, massive turtles and other wildlife.

Though in the wake of Harvey there are calls to “improve” our bayous, including Buffalo Bayou, by widening and deepening, even straightening, the fact is that meandering streams carry more water — because they are longer. Artificially widening and deepening streams doesn’t last: the banks collapse and the channel fills with sediment. Rivers are living, dynamic systems and will adjust to stabilize themselves. The trees and vegetation on the banks help absorb and cleanse stormwaters and prevent flooding by slowing and diffusing the energy of the stream.

Our political and civic leaders should focus on slowing the flow with green spaces, prairie and wetlands, swales and rain gardens — stopping, spreading, and soaking up stormwater before it floods our natural and built drainage systems.

  • Outstanding sycamore on the south bank of Buffalo Bayou upstream from that Bend in the River that we have been documenting for four years now. Photo by Jim Olive on July 1, 2018.
  • This creek flows into the bayou from the center of Memorial Park. It enters the bayou just downstream from the bend that we have been photo-documenting through the seasons. Photo by SC, July 1, 2018
  • Early morning joggers descending the bank towards the small tributary. Note the tree stump cut recently apparently by Harris County Flood Control maintenance contractors. Photo by SC
  • Closer view of the tree cut for no good reason on the bank of the creek flowing through Memorial Park into the bayou. Photo July 1, 2018
  • Looking up the creek that flows from the center of Memorial Park into Buffalo Bayou. Photo July 1, 2018
  • A big pine standing on the high bank of Buffalo Bayou in Memorial Park. Asking for a hug.

 

Watch this video of a summer sunrise on Buffalo Bayou in Memorial Park, July 1, 2018.

Engineers Caused the Flood That Led to Creation of Flood Control District

A Fact-Based Response to “Engineers’ View” in the Texas Tribune

March 6, 2017

A few weeks ago the Texas Tribune published an editorial comment written by engineers Michael Bloom and Steve Stagner responding to the excellent investigative work on flooding in the Houston region, “Boomtown, Floodtown,” published by the Tribune and ProPublica on Dec. 7, 2016. See our summary of the report here.

In their TribTalk editorial “Boomtown, Floodtown Reconsidered, An Engineer’s View,” Feb. 6, 2017, Bloom and Stagner repeat a couple of erroneous statements commonly used by representatives of the Harris County Flood Control District in support of the district’s shaky position that paving over the prairie, i.e. development, is not contributing to flooding.

According to this point of view, our native tallgrass prairie and its associated wetlands are hardly better than concrete when it comes to slowing and absorbing rainwater. These deep-rooted grassland prairies, with water-absorbing root systems that can reach 12-15 feet into the ground or more, once existed around and upstream of Buffalo Bayou, in Katy, west of Houston, for instance, source of Buffalo Bayou, as well as up and down the coastal plain. Practical people are trying to preserve and restore what remains.

In support of their argument, Bloom and Stagner summon up a point commonly made by members of the local engineering community: that the 1935 flood on Buffalo Bayou that devastated downtown Houston and led to the creation of the Harris County Flood Control District happened even though the Katy Prairie way upstream was then a big natural tallgrass prairie.

This argument is wrong on two points. Read why in this fact-based response by Save Buffalo Bayou to an “Engineers’ View” published as a comment in the Tribune’s TribTalk.

Or continue reading to find out the answers. With links!

Prairie switchgrass with root system. Photo by Sky Lewey

Terry Hershey, 1923-2017

A Force of Nature: The Force Continues

Jan. 20, 2017

Without Terry Hershey, there likely would be no Buffalo Bayou to save today.

One of Houston’s most influential conservationists, in the mid-1960s Terry Hershey rallied garden club members and Junior Leaguers, business and political leaders, including Save Buffalo Bayou founding president Frank C. Smith Jr., George Mitchell, George H.W. Bush, and others. Together they stopped the Harris County Flood Control District and the Army Corps of Engineers from stripping and straightening Buffalo Bayou and covering it in concrete all the way from Addicks and Barker dams through Memorial Park to the Shepherd Bridge.

Our beautiful 18,000-year-old Mother Bayou would have been a dead, shadeless river like Brays and White Oak. A brutal concrete ditch.

Hershey died Thursday, Jan. 19, her birthday, at her home near the bayou.

“Terry was just an enthusiastic, charismatic person who persuaded all of us we needed to save the world,” said Frank Smith recently.

But Buffalo Bayou is never safe from the bulldozers, as we found out when the flood control district once again began making plans around 2010 to strip, dredge, and reroute one of the last natural stretches of the bayou as it passes by Memorial Park. Even now our political leaders are calling for bulldozing, widening and deepening our bayous and waterways in a misguided response to flooding.

We must always remain vigilant, warned Hershey more than thirty years ago.

Watch this documentary film of Hershey and others talking about Buffalo Bayou. Called Last Stand of the Buffalo, it was made in 1984 by KUHT.

In honor of Terry Hershey, listen to the River Oaks Chamber Orchestra playing Brad Sayles’ Buffalo Bayou Suite.

And here is an interview with Terry Hershey conducted by environmentalist Ann Hamilton in 2008. From the Houston Public Library’s Oral History Project.

Avon Smith Duson, Terry Hershey, and Frank Smith, August 2016.

Avon Smith Duson, Terry Hershey, and Save Buffalo Bayou Board President Frank Smith, August 2016.

 

 

Science vs Engineers

Flood Control District and Scientific Experts In Opposite Corners

“You need to find some better experts.” — Former Harris County Flood Control District Director Mike Talbott to reporters for the Texas Tribune

Dec. 9, 2016

Excellent reporting from the Texas Tribune and PropPublica on the battle over what causes flooding in the Houston area and what to do about it.  The Houston Press has also published an informative follow-up interview with the current director of the Flood Control District, Russ Poppe, after the recent retirement of Talbott.

Some excerpts:

Scientists say the fundamental problem is that Houstonians have assumed they can simply engineer their way out of flooding.

They can’t. And widening and deepening our bayous and streams is the wrong answer. We need to understand and work with nature. It’s cheaper, more effective, and better for us. Storm water needs to be absorbed, slowed down, and spread out before it reaches our streams.

Houston-area officials could work to preserve green space; strengthen regulation on development; plan for a changing climate; and work harder to remove the 140,000 homes that remain in the 100-year floodplain. …

As wetlands have been lost, the amount of impervious surface in Harris County increased by 25 percent from 1996 to 2011, [Sam] Brody [of Texas A&M Galveston] said. And there’s no way that engineering projects or flood control regulations have made up for that change, he said.

Between 2001 and 2005, his research found, the loss of flood-absorbing land along the Gulf of Mexico increased property damage from floods by about $6 million — much of that outside floodplains.

“There’s no doubt that the development … that we’re putting in these flood-prone areas is exacerbating flooding over time,” Brody said. “There’s a huge body of research out there beyond Houston, across the world” supporting that argument.

Research by [then Director Mike] Talbott’s own Harris County Flood Control District points to the effectiveness of prairie grass to absorb floodwater. ‘The restoration of one acre of prairie,’ a 2015 report by the district wrote, would offset the extra volume of runoff created by two acres of single-family homes or one acre of commercial property. (The district says that data is preliminary.)

But Talbott and his successor, Russ Poppe, don’t buy the research.

Read this informative report by Neena Satija for The Texas Tribune and Reveal, Kiah Collier for The Texas Tribune; and Al Shaw for ProPublica.

And then read the follow-up interview with Poppe, the current director of Flood Control, in The Houston Press.

Image courtesy of the Texas Tribune.

Image courtesy of The Texas Tribune.

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 has been in office since 1989. Official photo courtesy of Steve Radack.

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.

Read the rest of this story.

Frank Smith, Conservationist

A Lifetime of Achievement and Service, Flying, Sailing, Driving with the Top Down

October 16, 2016

The year was 1933. Frank Smith was twelve years old and he had just climbed to the 14,255-foot summit of Long’s Peak while at Camp Audubon in Colorado.

It’s an achievement that still makes him proud. But more importantly, being in the snow-capped Colorado mountains changed the perspective of a young boy born and raised in a flat, humid city, albeit in one of the leafiest, most privileged neighborhoods in Houston.

“They made us pay attention to the flowers and the trees, and study and identify the mammals,” he recalls of his summers at Camp Audubon. “It was the first time my attention was directed toward natural things.” He had learned “a lot of other things,” he says. “But I had never been taught anything about the natural world.”

Those fortunate summers in the Rocky Mountain high forest wilderness during the Great Depression set Smith on a remarkable path of conservation and environmentalism. He read the books of John Muir, founder of the Sierra Club in 1892, including The Mountains of California. That path would lead Smith to found and lead numerous organizations, most recently Save Buffalo Bayou, that have helped protect and preserve bayous and streams, including Buffalo and Armand bayous, Galveston Bay and its estuaries, and create public park lands around the state of Texas. He would work with virtually all of the region’s prominent conservationists, all of them becoming close personal friends. Some of them had been friends since childhood.

But first he would have to grow up, join the Navy, establish several engineering businesses, invent some things, and meet Terry Hershey.

Read the rest of this post.

Frank C. Smith Jr., founding president of the board, Save Buffalo Bayou, in Memorial Park on a high bank above Buffalo Bayou. Photo taken May 5, 2016, by Jim Olive.

Frank C. Smith Jr., founding president of the board, Save Buffalo Bayou, in Memorial Park on a high bank above Buffalo Bayou. Photo taken May 5, 2016, by Jim Olive.

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.

Read the rest of this story.

The same high bank three months later on August 4, 2016.

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.

It’s Not Dead Yet

Flood Control Still Pushing Costly, Destructive “Stabilization” Project on Buffalo Bayou

July 31, 2016

It’s a pointless, wasteful, ill-conceived, and maybe illegal project to rip up and raze trees and plants and wildlife habitat, dig up the banks, plug up tributaries, dredge and reroute the channel along one of the last natural stretches of Buffalo Bayou in Houston. This is a dreamy stretch of the river in the middle of the city, filled with beaver, otter, alligators, fish and flying creatures, and even edible plants.  It flows for more than a mile past our great public Memorial Park, a natural detention area and significant geologic site that features very old high bluffs and sandstone formations. All of which would be obliterated.

And after almost three years of adamant public opposition, the Harris County Flood Control District is still promoting the project, which will cost the taxpayers at least $4 million plus, not including future costs of maintenance and repair.

It’s mystifying why they want to do this, why they think it would even work, why they don’t realize that the bayou would wash it away or that it would simply all slump away, as has happened in Buffalo Bayou Park downstream, where taxpayers are footing the ever-mounting bill for constantly repairing the banks dug up and stripped of trees and vegetation by Flood Control.

Do They Not Have More Urgent Problems?

Surely, the flood control district has more urgent problems that require our hard-earned tax money. Harris County is one of the most flooded places in the country. And this project, billed as a “stabilization” and “bank restoration” program, will do nothing to address flooding and could even make it worse. The county should focus on the hundreds of miles of channelized bayous and streams unwisely covered in now-aging concrete that should be restored to something more natural and beneficial.

The project, called the Memorial Park Demonstration Project, was first proposed in 2010 by the Bayou Preservation Association under then board chair, Kevin Shanley, landscape architect and principal with SWA Group, the firm responsible for the ugly, obtrusive bridges, collapsing sidewalks, poorly-functioning dog park and non-functioning faux Hill Country fountain and stream in Buffalo Bayou Park.

Read the rest of this post.

Excavate fill

This map prepared by the Harris County Flood Control District shows the areas to be excavated (yellow) and filled (orange) in the proposed Memorial Park Demonstration Project. Note also the rerouting of the channel. Memorial Park and the Hogg Bird Sanctuary, including a tributary, are on the north, with houses in between. The entire south bank is River Oaks Country Club golf course.

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

Read the rest of this post.

Red dots are Memorial Day house counts. Blue areas are floodplains. Orange is coastal floodplain.

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.

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.
  • Cottonwood downed in Buffalo Bayou Park on south bank west of Waugh by loss of banks and stabilizing vegetation "restored" by the Harris County Flood Control District. Several more mature trees were lost since this photo was taken Jan. 26, 2015, by Jim Olive.
  • Remaining cottonwood maintaining solo on south bank in April 2015.
  • Lone cottonwood still standing on south bank of Buffalo Bayou in November 2015 after parts of it were downed the previous winter.
  • Cottonwood still standing on March 4, 2016, having survived the Memorial Day and Halloween floods.
  • After a brave struggle, mighty cottonwood falls to April 2016 Tax Day rains and long, high flows from Buffalo Bayou dams. Photo on June 13, 2016

 

 

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