KICA Core Functions (Continued From Previous Page)
of these bridges. Each time a bridge is repaired, deck timbers are
replaced, and bolts are added to every timber. Hangers beneath the
timbers tie the deck timbers together in 8-timber groupings. This
reduces rattling and damage to the boards, substantially extending
Connor has led a similar evolution on KICA’s 25 boardwalks.
Battered by 2015’s 1,000-year flood event and then 2016’s
Hurricane Matthew, he investigated depth pilings. The result was a
requirement that pilings being driven more deeply into the beach, to
a depth of 10 feet. The depth must be verified by KICA’s structural
engineering consultant before contractors can proceed to the next
phase of construction. After 2017’s Tropical Storm Irma, many
beachfront owners who lost boardwalks referred their contractors to
the department for consultation about achieving a similar integrity.
tag of $325,250, with $90,000 in pipe cost alone. But Connor’s use
of spin-casting has saved KICA significant money and repair time,
and has maintained pipe capacities on similar jobs.
Connor describes the spin-casting process as “like an anthill gone
crazy.” A cementitious material is spun at 9000 PSI and mixed with
a strong adhesive. Using a centrifugal pump, the material, called
Centricast, is slowly spun into the pipe where it then sticks, coating
the interior surface. When dry, it becomes a new cement pipe
without joints. This method is preferred for Kiawah’s larger pipes,
typically 36, 48 and 54 inch diameters.
Connor and Ellmer’s work isn’t limited to physical infrastructure;
they also advance important processes. They’ve developed a
construction coordinate file – a digital project using AutoCAD,
the most commonly used engineering software, making all files
digital for one single source of information. This provides quick
access to data for a variety of uses. It has helped greatly in processing
encroachment permits for driveways that cross KICA drainage lines,
Visit kica.us/pipe-repair-methods to see a presentation with photos
and descriptions of some of these work processes.
Road repairs are often directly related to the deterioration of the old
metal pipes beneath them. About 90% of emergency road repairs in
the past five years have been related to metal pipe failure. This year,
after a change in the way KICA budgets for these repairs, a significant
allocation was made for metal pipe replacement. While it’s difficult
to determine a priority for repairs other than age, opportunistic
repairs can prove helpful. When a pipe breaks, replacement can now
be extended to adjacent pipes as well.
While drainage and roads are big portions of what the department
addresses, there is much more.
Professional inspections also fall under their purview. For example,
staff oversees the annu al inspection by coastal engineers of the 500-
foot Bass Creek revetment on Ocean Course Drive. The inspection
requires divers to check the structure below the waterline. The
revetment protects the roadway from Bass Creek channel and, if it
were to fail, the roadway could be lost.
Seven timber bridges connect smaller islands to Kiawah’s main
island. They were originally designed to present a rustic sound when
driven over. The 90 degree angle of the original design rattles the
timbers and hardware, causing wear and tear. Connor believes that
regular inspection and maintenance is the best way to approach
repairs. In this case, he initiated a radical shift in the maintenance
General Maintenance and the Mechanic’s Shop
Connor also manages the general maintenance department,
supervised by David Buck with four employees under him. This
crew is responsible for everything from redecking walk bridges,
filling potholes, routine boardwalk and shower maintenance, to
painting and repairing member mailboxes. They also take care of
facility items like HVACs and lighting at Beachwalker Center, both
security gates, The Sandcastle and KICA’s other facilities.
The mechanic’s shop employs two full-time mechanics. Skilled
in both small and large engines, they service KICA’s 28 vehicles,
three jon boats, and the numerous mowers and other small engine
equipment required to operate the Land and Lakes Department.
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