Saturday, August 12, 2017
Two Cheers for Conservation
I could tell you why. More paving, especially a parking lot built in 2014 right next to the creek, makes runoff. This encourages the gentle LaBarque to rise and flood. During 2015's heavy rain this was no flash flood: the creek was torrential for a full day, eroding its own sandstone channel, filling its fishing and swimming holes with sand, changing the creek's floor--it's now all shallow--and its shape, and dumping sand up and over the creek banks for 50 feet on either side, instantly altering the ecology of its entire riparian corridor. Back then I climbed a cliff to take a photo and show you the aftermath. Happened again in 2017. Flash floods now grow ever faster and taller, and when meeting this bend here they hammered a new channel through our other soil: clay.
Was I surprised to see rope for erosion control; 100 yards of woven rope to hold the creek bank all around its bend. Conservation people forced the landlord to uproot invasive cedars nearby and rope them into the creek bank's walls to try to mitigate the pounding this clay side of the creek will still take during flash flooding. Why? Because the other side is sand.
Rope doesn't solve the problem. The only real solution is to dredge or straighten the channel. The LaBarque did have its own very pretty and reasonable channel, but now it's clogged with sand.