Battery Brooke.Halfway between the Confederate Fort Darling at Drewry's Bluff and the Dutch Gap Canal, which General Butler was busily constructing, the Confederates had dug this powerful work. Its establishment rendered the construction of the Dutch Gap Canal a futile military operation. After 140 days spent in excavating it, Butler, on New Year's Day, 1865, exploded 12,000 pounds of powder under the bulkhead; but it fell back into the opening. Under the fire from the guns of Battery Brooke the obstruction could not be removed nor could the canal be dredged sufficiently to admit of the passage of vessels. The picture looks south along the main ramparts, fronting east on the river. While the Army of the Potomac was fully occupied at Petersburg, this battery bellowed out hearty defiance to the fleet by night and day. The strong Confederate fortifications on the James between the Appomattox and Richmond were effective in keeping General Butler bottled up in Bermuda Hundred.