Construction Today - Volume 16, Issue 2 - 155
Citadel's design included a large detention vault in anticipation
of flooding, and it was filled with water after the hurricane had
The vault, which has a capacity of 17,620 cubic yards, had to be
drained in order to proceed with the foundation work. "After the
vault was drained, we realized that the water table had been elevated an additional 12 inches than originally anticipated," he recalls.
Allen Harrison had implemented a dewatering system to lower
the water table for foundation work, but after the flooding, it was a
foot higher than before. This required the company to lower it an
additional foot to proceed.
Another Allen Harrison property in Houston, The Highbank, escaped
the hurricane unscathed. Instead of constructing the entire apartment
building with a slab on grade, it found a different solution. "We incorporated a podium design on the southern portion to where the water
was able to freely flow underneath the garage and under the units,"
Wood says. "We have quite a bit of experience in the floodplain."
Wood is proud of the project team's work on both buildings.
"One thing I like about South Main is that it's an 11-story all brick
Construction workers were willing to lend a hand to help others
in Houston during Hurricane Harvey, Allen Harrison Co. Managing
Director Joshua Wood says. "It was amazing to see the city come
together," he recalls.
"We had subcontractors who said, 'We're sending all of our
employees to this area of town,'" he says, adding that he sent his
employees to provide aid. "We can just be thankful to have a warm
place to sleep."
Citadel detention vault is 17 feet
deep and designed to contain water when
Houston experiences a major rain.
VOLUME 16, ISSUE 2 CONSTRUCTION-TODAY.COM