It runs in a
direction almost perpendicular to the line of bluffs on the opposite
side, or east bank, of the river. As soon as the enemy discovered what
we were doing he established a battery commanding the canal throughout
its length. This battery soon drove out our dredges, two in number,
which were doing the work of thousands of men. Had the canal been
completed it might have proven of some use in running transports
through, under the cover of night, to use below; but they would yet have
to run batteries, though for a much shorter distance.
While this work was progressing we were busy in other directions, trying
to find an available landing on high ground on the east bank of the
river, or to make water-ways to get below the city, avoiding the
batteries.
On the 30th of January, the day after my arrival at the front, I ordered
General McPherson, stationed with his corps at Lake Providence, to cut
the levee at that point. If successful in opening a channel for
navigation by this route, it would carry us to the Mississippi River
through the mouth of the Red River, just above Port Hudson and four
hundred miles below Vicksburg by the river.
Lake Providence is a part of the old bed of the Mississippi, about a
mile from the present channel. It is six miles long and has its outlet
through Bayou Baxter, Bayou Macon, and the Tensas, Washita and Red
Rivers.
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