The dry summer and autumn of 2008 belie Bush Creek's erosive capability
when filled by tropical storm downpours. The tenacious tree on
left and white drainage pipe on right indicate the river bank
once had a very different profile.
This spot, just downstream from the tributary, looks
to have given the B&O trouble. Squared stones suggest a
retaining wall had previously held back the river from
undermining the railroad on the bank above. Farmers
don't build walls of such stone, railroads do, so I take
this as more evidence the B&O had been here.
The flat stones may be slate. The Ijamsville slate quarry,
about a mile upstream (right, in this photo) predated the
railroad and would have been a convenient source of stone.