09/06/16 12:00pm

STOP TRYING TO FIX BUFFALO BAYOU, SAYS SAVE BUFFALO BAYOU Buffalo Bayou Bank Shift The waterway enthusiasts at Save Buffalo Bayou just issued their report on their recent tours of the waterway, with an eye toward how the scene has changed in the wake of the Tax Day flooding and the extended high flows from the try-not-to-make-things-worse paced drainage of the Addicks and Barker reservoirs. The photo above, taken during the organization’s scouting, shows an area of the bayou where the river channel dug through a curve and moved over, such that some landmarks previously on the north bank are now on the south side. The authors take issue with a number of current and proposed plans to keep the bayou’s banks in place, and suggest that the best way to end up with a relatively stable channel is to step back and let geology do the job: “When the bayou’s banks slump or collapse, the brush and fallen trees left in place collect sediment during subsequent high waters, gradually rebuilding naturally reinforced banks. These new nature-built banks are better able to withstand subsequent floods as well as the more powerful flows being released from the dams . . . The bayou itself then reseeds these and other sandy areas with the proper succession of plants that first colonize then stabilize the sediment, turning sand into soil, preparing the way for seedlings of trees. It’s part of the natural function of riverine flooding that we rarely have opportunity to observe, especially in the middle of a city where we have dug up and covered in concrete most of our bayous and streams.” [Save Buffalo Bayou; previously on Swamplot] Photo: Save Buffalo Bayou