From the Richmond Whig, 5/1/1862, p. 3, c. 3
DEFENCES OF JAMES RIVER. - The Enquirer of yesterday states
that the navigation of James river will be kept open without interruption, but
at certain points barricades are being made on either side of the channel, of
double rows of piles filled in with stones, leaving a channel way of eighty
feet. At each of these points of ingress a number of vessels are to be placed,
laden with stone, which may be sunk at a moment's notice directly in the
channel. If the necessity does not occur, of course the river will remain
unobstructed, and, we may say, improved as the effect of the side barricades
will be to aid the current and keep the channel clean.
We would suggest, in addition to these precautions that
hogsheads or barrels, filled with blocks of granite, be placed on some of the
sloping bluffs along the river, ready to be rolled in either to obstruct the
channel, or to crush a passing vessel of the enemy.