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.
A Siege of Herons and a Skewer of Egrets
Highrise Homes for Young Families, Easy Access to Fish
May 22, 2016
The normally silent, spreading crowns of the live oaks along North and South Boulevards in Houston have been turned into noisy rookeries these past few weeks as yellow-crowned night herons and great egrets moved in to build nests and start families. The same densely-populated housing developments have no doubt been built all over the city in shady trees with relatively close access to nearby bayous and creeks for food. In this case, the parents appear to be bringing home fish and other edibles from Brays Bayou.
The noisy bird activity (squawks and kraks and lots of fluttering) has also drawn out bird watchers and photographers, including Allison Zapata, who’s been posting her photos on her website and on Twitter. She took the following photo of a juvenile yellow-crowned night heron and sent it to us.
Houston is on the Central Flyway for migrating birds. Yellow-crowned night herons and great egrets reside in the Houston area year-round. But Allison, who’s been watching these birds, said they were are on their way to somewhere and would be back again in the fall.
Juvenile yellow-crowned night heron pondering whether to fly or stay in the nest as long as possible. Photo on May 20, 2016, by Allison Zapata.
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