Sand mines on the west fork of the San Jacinto adjacent to Kingwood. Note erosion on banks. Satellite photos show river and mines merged during Harvey, i.e., the river overtopped the dikes.

Sand mines on the west fork of the San Jacinto adjacent to Kingwood.

After Harvey, fresh sand deposits several feet thick line both shores of the west fork of the San Jacinto adjacent to Kingwood.

After Harvey, fresh sand deposits several feet thick line the shores of the west fork of the San Jacinto adjacent to Kingwood. They also constrict the cross section of the river.