Feeds:
Posts
Comments

Posts Tagged ‘flooding’

DSC_2228

Development in League City threatens wetlands

Hurricane Harvey was tough on wetlands, and even tougher on wetland scientists like me. I have spent a career focusing on wetlands along the Upper Texas Gulf Coast. Like the Lorax, I speak for the wetlands (and the prairies and forests and all the rest of it!). I have devoted considerable energy to expounding all of the virtues of wetlands, including their ability to decrease downstream flooding. So much so that at least one top flood official accused me believing in “magic wetlands”. He didn’t think wetlands did all that much in terms of stormwater detention (or anything else apparently).

As with many other aspects of our lives, Harvey changed everything. It modified my views on upstream wetlands and flood control. Harvey totally overwhelmed every single prairie-pothole wetland on the Katy Prairie, and on every other prairie in our area for that matter. All of these wetlands filled with water very quickly very early in the storm and all of the soils in or out of the wetlands became saturated very early as well, such that virtually all the rain falling anywhere, even on the sandiest of soils, ran off the landscape and into our creeks and bayous. And then the water in the bayous rose and the rest is burned into our memories. (more…)

Advertisements

Read Full Post »

Were the impacts of Harvey in Houston a result of no zoning in the city of no limits? This assertion seems to be the catch-all phrase used by Houston’s detractors for all that was exposed by Harvey in terms of planning or the lack thereof.  On the other hand, critics of regulation like to point out that zoned cities fared just as badly as Houston during Harvey. Our Mayor famously said that “zoning wouldn’t have changed anything. We would have been a city with zoning that flooded.” (more…)

Read Full Post »

There are many things that we must think about as we begin to consider how to rebuild Houston. But one thing stands above the rest, literally: elevation. Elevation is the number one predictor of flooding and flood damage.  Water seeks the low spots; we need to seek the high spots. It is just that simple.  Elevation needs to be our watchword.  Elevation needs to be the metric but which we gauge all new development as well as all redevelopment.

Elevation is about getting people and structures above the level of the floodwaters. All of the practices and policy issues that involve getting people out of harm’s way involve elevation. (more…)

Read Full Post »

Capture

An example of floodplain tailgating?

As I drove into work this morning I found myself behind an 18-wheeler. I was keeping the required distance—one car length for every 10mph, more or less, when the truck swerved just a wee bit, getting pretty close to the concrete divider of the inside lane we were traveling in. (more…)

Read Full Post »