Who Owns the Bayou?

Rights, Responsibilities, and Flooding Your Neighbor

 

Sept. 20, 2018

Over the past several years, in the wake of extreme floods, we have received numerous complaints about damaging “erosion control” projects on the banks of Buffalo Bayou – projects damaging not only to the natural functioning and ecosystem of the bayou but also potentially to people living and working up and downstream of the projects.

Property owners bulldoze the banks, build massive retaining walls made of concrete block or sheet metal, dump piles of concrete construction debris into the bayou, strip and line the banks with concrete riprap.

This in addition to stripping the banks of trees and vegetation, reshaping the banks, gouging out pathways, and landscaping with walkways and non-native flower gardens.

Do they have the right to do this? Is it a good idea? Who owns the bayou really? What permits are required, if any, to do these things?

And does the bayou itself have rights?

 

Did Retaining Wall Make Flooding Worse?

What happens if someone installs concrete riprap or a massive retaining wall that deflects the flow of the bayou away from their property and floods neighbors or damages public park property? This has happened repeatedly on Buffalo Bayou.

In one case, a large property owner in River Oaks, whose bank is likely affected by a large stormwater outfall directly across the way, installed a controversial concrete block wall along several hundred feet of bank in 2016, initially without a permit from the City of Houston. That armoring washed away during Harvey, and the property owner has now rebuilt the eroded bank, apparently dumping material into the channel, and installed a massive sheet metal wall that has alarmed residents across the bayou and elsewhere, threatening a narrow strip of land that the Houston Parks Board has been eyeing for a hike-and-bike trail.

Is that legal? Is it right? Does it work?

  • This extensive hardening of the bank of Buffalo Bayou, installed by a private owner in 2016, failed in August 2017 during Harvey, which washed away the bank. Photo January 2018.
  • The failed concrete block hardening of the bank of Buffalo Bayou after the flood of July 4, 2018, and after reconstruction had begun. Grading, bulldozing, or generally digging up the bank and running heavy equipment over it damages the structure of the soil, makes it more prone to erosion, and increases stormwater runoff into the bayou, raising flood levels.
  • In 2018 the owner began rebuilding the bank, dredging and apparently dumping material into the channel. The channel of the bayou belongs to the public, essentially in trust through the Port of Houston, and according to Texas law property lines shift when the channel shifts. Dredging and filing the channel requires a permit from the Corps of Engineers. Photo July 2018
  • Another view of heavy equipment filling the shifted channel and rebuilding the bank of Buffalo Bayou. Photo July 15, 2018.
  • Sheet piling being driven into the rebuilt bank of Buffalo Bayou to form a retaining wall. Photo July 19, 2018
  • Another view of the extensive grading and construction work ostensibly for erosion control on Buffalo Bayou. Photo July 26, 2018
  • Reconstruction and hardening of the bank of Buffalo Bayou as of August 21, 2018. Residents across the way are concerned that this project will increase flooding and erosion of their property.

 

Shocker: The Port of Houston Owns Buffalo Bayou

This will come as a surprise to many people: The Port of Houston owns the submerged lands of Buffalo Bayou all the way from the bay to the headwaters. In 1927 the Texas State Legislature gave the Port of Houston “all the submerged lands lying and being situated under the waters of Buffalo Bayou, San Jacinto River, White Oak Bayou, Bray’s Bayou, Simms Bayou [sic], Vinces Bayou [sic], Hunting Bayou, Greens Bayou, Carpenters Bayou, Old River, Lost River, Goose Creek and Cedar Bayou, and all other streams within the authority tributary to the Houston Ship Channel, so far up said streams as the State may own same …  for public purposes and for the development of commerce only …” (See Sec. 5007.004)

Many people with property on Buffalo Bayou would think they own to the center line of the channel since the Harris County Appraisal District describes it that way and taxes it too.

Read the rest of this post.

Is the water in Galveston Bay really that clean?

Bay’s ‘A’ grade on water quality misleading, clean water advocates say

By Alex Stuckey, Houston Chronicle, Sept. 7, 2018

“I think it’s kind of misleading to label water quality an ‘A,’ ” said Brian Zabcik, clean water advocate for Environment Texas, after reviewing the [Galveston Bay] report. “But it’s a very narrow definition of water quality.”

So narrow, in fact, that Erin Kinney, a [Houston Advanced Research Center] research scientist, said researchers didn’t take into account any chemical spills in the water.

The levels of dissolved oxygen and nitrogen in water samples from rivers, bayous and the bay “were most often at acceptable levels for supporting diverse and healthy aquatic life,” the report stated. “The water quality problems that did exist — relating to high levels of phosphorus — typically occur in bayous that receive runoff and wastewater from human activity in residential, industrial, commercial, and agricultural areas.”

Read the rest of this report in the Houston Chronicle.

Public Comment Invited on Spending Plans for Harvey Aid

Plans, Priorities for City, County to Spend Federal Housing and Urban Development Funds

By Mike Morris, Houston Chronicle, Sept. 10, 2018

Houston area residents are inching closer to getting long-awaited Hurricane Harvey aid, and have until Oct. 6 to comment on the city of Houston and Harris County’s draft plans outlining how the governments will spend the more than $1 billion each soon will receive.

You can find the plans at this link.

In a mid-May memo to city council members, Houston’s Housing Director Tom McCasland expected the Department of Housing and Urban Development aid to be arriving in early September. Local officials now are hoping to launch their housing repair programs sometime in November.

Read the rest of this report in the Houston Chronicle.

And The Waters Will Prevail

What if Houston’s survival depends not just on withstanding a flood, but on giving in to it?

By Henry Grabar, Slate, Aug 30, 2018

Unprecedented storms have brought three straight years of biblical floods, culminating in Harvey, which inundated 154,170 homes in Harris County—the Delaware-sized area that contains the city of Houston and another Houston’s worth of people outside it. Nearly half of those houses were in neither the 100-year nor the 500-year FEMA flood plain. Why did they flood? In part because Harvey was a leviathan of a storm swollen by a carbon-thick atmosphere, a once-in-10,000-years rainfall event. The weight of the water flexed the earth’s crust and temporarily sank the city a half-inch. And the homes flooded in part because Houston, like other cities, has reshaped its natural flood plains with concrete. Human construction now decides where the floods go.

….

Several experts I spoke to found that suggestion—that new development was not having an effect on flooding—ridiculous. As Houston has sprawled westward over the Katy Prairie, 75 percent of its flood-absorbent grasslands have been paved over, turning natural detention basins into roads and houses. In Brays Bayou, on the south side of the city, Rice environmental engineering professor Philip Bedient has found that rainfall is up 26 percent over the past 40 years—but runoff is up 204 percent. From 1996 to 2011, impervious surface in Harris County increased by a quarter, and from 1992 to 2010, the area lost almost a third of its wetlands—nearly 16,000 acres. It’s a correlation that’s been noted again and again. “There’s no question that the amount of impervious surface and the destruction of natural ecosystem surfaces has impacted the amount of runoff and flooding that we have seen,” said Shannon Van Zandt, the head of the landscape architecture and urban planning department at Texas A&M. “There’s no question about that. I don’t think it’s plausible to suggest that the detention is taking care of the issue.”

The chief risk facing Houston and Harris County is not the vulnerability of new developments, which do tend to be built higher, better, and upstream, but that of the older houses downstream, many built low to the ground and served by undersize storm drains. It may not be the case that your new neighbor upstream is making you flood. But the standards could be higher. Activists say the choice between an abandoned, flood-prone golf course and a subdivision of 900 homes was a false one. Susan Chadwick, the executive director of Save Buffalo Bayou, a group that opposes development in and around the river, argued in June that the city should have used eminent domain on the course to create a detention pond that would relieve Brickhouse Gully.

The engineers at the Flood Control District don’t disagree it would have been a good place for a pool. As we sat in his office going over flood plains, Todd Ward conceded it was a bit of a missed opportunity. We found the course on an enormous satellite map of Houston on the wall. In a giant city, it’s a small square. But there aren’t many undeveloped parcels of that size left. Some of the just-approved $2.5 billion bond will go toward buying out existing repeat-flooding homes downstream of the newly elevated houses at Spring Brook Village. The bond calls for $35 million of channel improvements to Brickhouse Gully to reduce the risk to 1,300 homes.

Read the rest of this article in Slate.

Photo illustration by Lisa Larson-Walker for Slate. Flood map by Harris County Flood Control District, Flood Education Mapping Tool

Flood Bond Election: New Projects Added

Tensions on Buffalo Bayou

 

August 19, 2018

The Harris County Flood Control District presented to Harris County Commissioners Court Tuesday, Aug. 14, its final list of flood risk reduction projects that could be funded with the proceeds of $2.5 billion in bonds over a period of 10-15 years.

Early voting on the bonds started Aug. 8 and continues through Tuesday, Aug. 21. The election is Saturday, Aug. 25. The $2.5 billion target is widely considered a small down payment on a $20-30 billion county-wide flood resiliency program that should emphasize buyouts, land acquisition and preservation, floodplain restoration and other non-structural approaches.

The list of 237 projects includes 38 projects that were added as a result of community meetings held across Harris County in June, July and August, according to the district website. Note that the list of potential projects is not fixed or obligatory, and citizens should still have opportunities to influence future plans and priorities.

Six additional projects were added through community input to the projects on Buffalo Bayou below Addicks and Barker dams.

These include $30 million for design and construction of replacement bridges along Buffalo Bayou, apparently targeting bridges that went under water during Harvey or are thought to be obstructing the flow.

The new list includes $500,000 for studies to investigate “bridges over Buffalo Bayou, the channel conveyance capacity around Beltway 8, Rummel Creek Road bridge and potential high flow bypasses at various locations along the bayou for the purpose of reducing the risk of flooding along the channel.”

Also newly included is $200,000 for investigation of the “effectiveness of small detention sites in the Buffalo Bayou watershed for the purpose of reducing the risk of flooding.”

Tensions Upstream and Downstream

The reference to “channel conveyance capacity around Beltway 8” and “potential high flow bypasses” reflects a simmering tension between residents on the straightened upstream of Beltway 8 and those on the meandering downstream. Neighborhood activists upstream of the beltway blame the “kinks” and “bottlenecks” downstream for causing flooding of their homes. Michael Huffmaster, president of the Briar Forest Super Neighborhood and chair of the Super Neighborhood Alliance, has been advocating a plan to cut through meanders downstream and install large underground concrete culverts to speed the flow.

Rivers and streams are dynamic systems, evolving through the landscape to find equilibrium, balancing energy, flow, and sediment transport. While meandering streams carry more water because they are longer (p. 9), artificially straightening streams shortens the channel and increases the speed of the flow, which can cause more erosion and flooding. (See below.) Meandering streams are more stable, healthier, cleaner, and more biologically diverse. (p. 2)

Some six miles of Buffalo Bayou below Barker Dam was rerouted, stripped, and straightened in the late Forties and Fifties by the Corps of Engineers through what is now Terry Hershey Park to several hundred feet below Beltway 8. Environmentalists, including Terry Hershey, Frank Smith, George Mitchell, and others, many of whom also lived on the bayou, led a popular movement in the Sixties and Seventies to stop the Corps from stripping, straightening, and concreting the bayou all the way to the Shepherd Bridge.

As a result, much of Buffalo Bayou remains in a relatively natural, meandering state.

Read the rest of this post.

A comparison of the original meanders and the straightened channel of Buffalo Bayou flowing through Terry Hershey Park by geologist Tom Helm.

 

 

Houston Has to Get Out of the Floodplains. Now.

Important commentary about how we should be using potential bond proceeds from the Aug. 25 election to get out of the way of flooding and let our natural drainage system — our bayous and streams — work the way they are supposed to. From Dr. John Jacob, board member of Bayou City Waterkeeper and advisory board member of Save Buffalo Bayou.

Commentary by Dr. John Jacob, the Houston Chronicle, July 24, 2018

Houston has in place a natural flood detention and conveyance system that could handle another Harvey, sitting right here in plain sight.

Our bayous, creeks and streams, and their associated floodplains, have carved out, over millennia, a very robust and capacious system. This legacy system did not fail during Harvey. We failed, over the years, because we put so many people in harm’s way.

In fact, more than 40 percent of all FEMA-designated floodplains in Harris County have been developed to one degree or another, with more than 500,000 homes and apartments in these hazardous zones. Few floodplains within Beltway 8 are undeveloped.

Where we saw boat rescues, where we saw four to six feet of water and more in homes, these were houses deep in harm’s way that should not have been there.

This legacy floodplain system was given to us free of charge. All we had to do was to protect it, to keep homes and commerce out of the low-lying valleys. Now here we are after Harvey, trying to reduce the size of the floodplains, trying to keep water out of the floodplains, because people and their homes are in the way now. Many great and beloved neighborhoods have sprung up in the floodplains. People don’t want to leave. And so they stay, hoping Harvey, Tax Day and Memorial Day floods are just an anomaly.

Read the rest of this commentary in the Houston Chronicle.

Flooding in the developed floodplains of Buffalo Bayou after release of impounded Harvey stormwater threatening to overwhelm Barker Dam. Photo on Aug. 30, 2017, by Jim Olive

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

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.

Removing Fallen Trees More Damaging Long Term

Post-Harvey debris removal along Buffalo Bayou almost complete

By Tracy Maness, Houston Chronicle, Memorial Examiner, July 12, 2018

Since last fall, HCFCD has cleared large downed trees along nearly 25 miles of the bayou from Highway 6 to Interstate 45, according to Facilities Maintenance Department Manager John Watson. However, an official from nonprofit Save Buffalo Bayou said the work will ultimately lead to more flooding and erosion of the bayou downstream.

Watson said while the flood control district typically allows trees to remain where they fall, contractors were hired following the hurricane to go in to remove the many downed trees using barges and swamp buggies, which are like large excavators on pontoons, in order to keep the flow of the waterway moving.

“Our normal operation involves just cutting and leaving trees in place, but with an event the size of Harvey and the damage that was done from Harvey, we really couldn’t just leave the downed trees there. We had to go and physically get into the channel and remove them,” Watson said.

Save Buffalo Bayou Executive Director Susan Chadwick said the nonprofit organization was started in 2014 “to oppose a plan by HCFCD to raze the forest, dredge and reroute over a mile of one of the last forested, publicly accessible stretches of Buffalo Bayou flowing past Memorial Park through the middle of the city.”

Chadwick said Save Buffalo Bayou educates community members and leaders about how natural and manmade drainage systems work and what is ineffective to prevent flooding.

She said large debris removal projects and other efforts to speed up water flow along Buffalo Bayou are not effective long term.

“The focus on speeding up the flow leads to a cascade of poor decisions, policies and practice: removing all the woody debris in the stream, for instance, dredging, straightening, shortening and enlarging channels,” Chadwick said. “These extremely costly methods are unsustainable.”

She said because Buffalo Bayou is a natural body of water, it will always evolve and correct itself when repairs or changes are made.

“A river is a dynamic living system. It adjusts itself to the width and depth necessary to become stable. An artificially deepened stream, for instance, will fill itself with silt and sediment again. The banks of an artificially widened stream will collapse. Streams flow the way they do because of the underlying geology. Rivers have a memory. They will do what they want and need to do,” Chadwick said.

Read the rest of this article in the Memorial Examiner.

A trackhoe on a barge stuck in the sandy channel bottom of Buffalo Bayou at that bend below the high bank in Memorial Park. Maintenance contractor with flood control was removing fallen trees from the banks and channel. Photo by SC May 19, 2018

Buffalo Bayou Flood Bond Meeting

New Meetings Scheduled

June 28, 2018

Updated July 23, 2018

The Harris County Flood Control District has scheduled new meetings, including a meeting on Buffalo Bayou for July 30, to explain the proposed projects to be funded with to be funded with $2.5 billion in proceeds from the bond election to be held Aug. 25.

Officials with the Harris County Flood Control District are holding public meetings in each of the county’s 23 watersheds to receive public input about proposed flood mitigation and protection projects.

The meeting on projects related to Buffalo Bayou will be held on July 30 from 6 to 8 p.m. at the Memorial Drive United Methodist Church, 12955 Memorial Drive, Houston 77079.

County officials have recently held meetings on projects near Addicks Reservoir, which drains into Buffalo Bayou, and Cypress Creek, which overflows and drains into Addicks during floods. Politicians and others are proposing a new dam somewhere on Cypress Creek to deal with flooding there, although a new dam would be a federal responsibility, not a local project.

Stormwater draining into Addicks Reservoir is an acute problem as the too much runoff during Harvey forced federal authorities to open the floodgates during the storm, flooding thousands of homes and killing three people along Buffalo Bayou. The stormwater capacity of Barker Reservoir, which also drains into Buffalo Bayou, is also a problem. Among other issues, residential subdivisions were developed within the known flood pool behind the dam and many homes were flooded during Harvey.

A meeting on Barker Reservoir projects is scheduled for August 1 from 6 to 8 p.m. at Memorial Parkway Junior High School, 21203 Highland Knolls Drive in Katy 77450.

The location for the July 10 meeting about projects related to the San Jacinto River has been changed. The new location is Kingwood Park High School, 4015 Woodland Hills Drive in Kingwood, 77339, from 6 to 8 p.m.

Also upcoming is a meeting on projects related to Little Cypress Creek. That meeting is scheduled for July 31 from 6 to 8 p.m. at the Richard & Meg Weekley Community Center, 8440 Greenhouse Road in Cypress, 77433.

These meetings have been declared to be special meetings of Harris County Commissioners Court so that members of Commissioners Court may attend and participate.

The purpose of each meeting is to describe some of the projects proposed for the anticipated 2018 flood bond election and to solicit residents’ input on which projects should be included.

For a comprehensive description of the types of projects the county intends to fund, as well as further information about meetings, a map of projects, and how to comment, visit the flood control district’s webpage.

Meetings are also listed on Save Buffalo Bayou’s Calendar of Events.

Channel “improvement” on South Mayde Creek by the Harris County Flood Control District. Once a natural stream, this creek flows into Addicks Reservoir. Photo by Diane Masterson on June 7, 2018

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